TreeIssues

Washington

287 active alerts in this region

TreeIssues monitors plant and tree health threats across Washington. Below you will find current alerts for pests, diseases, fungi, and invasive species that have been detected in the state. Alerts are sourced from USDA, USFS, and Washington state agricultural agencies. Each alert includes severity ratings, affected species, symptoms, and recommended treatments.

Mountain Pine Beetle

CRITICAL
Insect

A native bark beetle responsible for massive die-offs of lodgepole, ponderosa, and whitebark pines across western North America. Climate change has expanded its range northward and to higher elevations. Outbreaks have affected tens of millions of acres.

Affecting 9 regions

Dutch Elm Disease

CRITICAL
Disease

A devastating vascular wilt disease spread by elm bark beetles that has killed millions of American elms since the 1930s. The fungus blocks water-conducting vessels, causing rapid wilting. It fundamentally changed the American urban landscape.

Affecting 45 regions

Fire Blight

HIGH
Disease

A bacterial disease that primarily affects members of the rose family, including apple and pear trees. It can destroy entire orchards in a single season. Bacteria spread rapidly during warm, wet spring weather through blossoms and wounds.

Affecting 32 regions

Thousand Cankers Disease

HIGH
Disease

A disease complex involving the walnut twig beetle and an associated fungus that has caused significant mortality of black walnut, particularly in western states. Thousands of small cankers coalesce to girdle branches and the trunk.

Affecting 15 regions

Armillaria Root Rot

HIGH
Fungus

One of the most widespread and destructive forest diseases in the world, caused by a complex of honey mushroom species. It attacks stressed trees through root contact and can persist in dead stumps for decades, infecting nearby healthy trees.

Affecting 36 regions

Verticillium Wilt

HIGH
Fungus

A soilborne fungal disease that affects hundreds of plant species including maples, elms, redbuds, and many other trees. The fungus invades through roots and colonizes the vascular system, blocking water transport. Symptoms often appear suddenly on individual branches. Maples are particularly susceptible. Olive-green to brown streaking in the sapwood is diagnostic.

Affecting 27 regions

Phytophthora Root Rot

HIGH
Fungus

A group of water-mold diseases that attack the roots and root collar of many tree species. Phytophthora thrives in wet, poorly drained soils. It destroys fine roots and can girdle the trunk at the soil line. Affected trees show a general decline that is often misdiagnosed as drought stress. Oaks, dogwoods, rhododendrons, and many other species are susceptible.

Affecting 31 regions

Bronze Birch Borer

HIGH
Insect

A native North American wood-boring beetle that attacks birch trees, especially paper birch and European white birch in landscape settings. Larvae feed under the bark in a serpentine pattern, disrupting nutrient and water transport. Dieback starts at the top of the crown and progresses downward, the opposite pattern of many other pests.

Affecting 26 regions

Ips Bark Beetles

MODERATE
Insect

A genus of bark beetles that attack stressed and weakened pines throughout North America. While they typically colonize dying trees, drought and overcrowding can trigger outbreaks that kill healthy timber.

Affecting 19 regions

Anthracnose

MODERATE
Fungus

A group of fungal diseases causing leaf spots, cankers, and shoot blight on many shade trees. Sycamore, dogwood, maple, and oak are commonly affected. Cool, wet spring weather promotes infection of newly expanding leaves.

Affecting 38 regions

Apple Scab

MODERATE
Fungus

The most economically important disease of apples worldwide. The fungus overwinters in fallen leaf litter and releases spores during spring rains. Severe infections reduce fruit quality and yield and can defoliate trees by mid-summer.

Affecting 26 regions

Dothistroma Needle Blight

MODERATE
Fungus

A fungal disease of pines that causes premature needle loss and can significantly reduce growth and vigor. It affects many pine species but is especially damaging to Austrian, ponderosa, and Monterey pines. It has increased in severity with climate change.

Affecting 19 regions

Seven-spotted Lady Beetle

MODERATE
Insect

This is a picture of a Coccinella septempunctata at Fort Armistead Park in Baltimore City, Maryland.

Affecting 30 regions

California Tortoiseshell

MODERATE
Insect

Was trying to insert its proboscis into the concrete, perhaps in the search for nectar or water? This was after it was fluttering around the building along the walls, then landing on the ground.

Affecting 5 regions

turkey-tail

MODERATE
Fungus

small group growing on saw cut oak trunk in upland mesic hardwoods; funnel shaped to rosette growth, with peeling, wavy "petals"; upper surface velvety/finely hairy, concentrically zoned, blues, purplish browns & yellowish browns dominated, whitish at margin in some; lower surface with rounded pores, some becoming elongated & tooth-like, white to pale tan pore surface; rudimentary to no stalk, hairy, attached to wood centrally or laterally

Affecting 28 regions

Rockweed

MODERATE
Other

Rockweed observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Asian Longhorned Beetle Damages hardwood trees by tunneling deep into trunks and branches

MODERATE
Insect

Asian Longhorned Beetle Damages hardwood trees by tunneling deep into trunks and branches - identified by USDA APHIS as a pest threat.

Affecting 50 regions

Variegated Lady Beetle

MODERATE
Insect

Variegated Lady Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 10 regions

Banded Alder Borer

MODERATE
Insect

Banded Alder Borer observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Cinnabar moth

MODERATE
Insect

Almost every ragwort I came across had about 5-10 of these guys on them. Very neat critters

Affecting 2 regions

Lorquin's Admiral

MODERATE
Insect

Lorquin's Admiral observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

membranous pelt lichen

MODERATE
Fungus

membranous pelt lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Ramularia rubella

MODERATE
Fungus

Ramularia rubella observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Feather Boa Kelp

MODERATE
Other

Mendocino Lighthouse at Shelter Cove, Point Delgada, Lost Coast, King Range Conservation Area, Humboldt County, California

Affecting 4 regions

sea cabbage kelp

MODERATE
Other

sea cabbage kelp observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Devil's Coach Horse Beetle

MODERATE
Insect

Around 1 inch in length. Turned up it's tail(?) when I got within three or four inches away

Affecting 2 regions

Green Rose Chafer

MODERATE
Insect

Green Rose Chafer observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Brown House Moth

MODERATE
Insect

Brown House Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Meadow Spittlebug

MODERATE
Insect

Meadow Spittlebug observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Masked Hunter

MODERATE
Insect

Masked Hunter observed in the wild. Research-grade iNaturalist observation.

Affecting 8 regions

Northern Red Belt

MODERATE
Fungus

Northern Red Belt observed in the wild. Research-grade iNaturalist observation.

Affecting 9 regions

Ochre-banded Conk

MODERATE
Fungus

Ochre-banded Conk observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Bull Kelp

MODERATE
Other

Bull Kelp observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Sea Palm

MODERATE
Other

Sea Palm observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

seersucker kelp

MODERATE
Other

seersucker kelp observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Campyloneura virgula

MODERATE
Insect

Campyloneura virgula observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Brown Funnel Polypore

MODERATE
Fungus

Brown Funnel Polypore observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

alpine jelly cone

MODERATE
Fungus

alpine jelly cone observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Barrow's Bolete

MODERATE
Fungus

Young specimen found right next to older/larger specimen with very pale to white cap. With spruce, Douglas fir, and pine.

Affecting 3 regions

lace lichen

MODERATE
Fungus

It has the same mossy and clumped look. The color is about the same as well

Affecting 2 regions

Japanese Wireweed

MODERATE
Other

Japanese Wireweed observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Painted Lady

MODERATE
Insect

Several days of hot record setting weather in Jefferson County. Co. Painted Ladies are in flight at the base of North Table Mountain. This butterfly was much larger than most of what I've seen here...in past two days. Migrating or overwintering?

Affecting 21 regions

Tree Lungwort

MODERATE
Fungus

On dead trunk of Holodiscus in thick scrub a few meters from the lake. Soredia along the margins. Lacks lobules.

Affecting 6 regions

Common Red Soldier Beetle

MODERATE
Insect

Common Red Soldier Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Bronze Ground Beetle

MODERATE
Insect

Bronze Ground Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 9 regions

Essex Skipper

MODERATE
Insect

Essex Skipper observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Pithanus maerkelii

MODERATE
Insect

Pithanus maerkelii observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Green Burgundy Stink Bug

MODERATE
Insect

A tremendous evening with around 75 folks to celebrate moth week! It was the hottest day of the summer so far, so it was a wonderful treat to look for bugs with so many folks. :) Great night!

Affecting 8 regions

Twice-stabbed Stink Bug

MODERATE
Insect

Twice-stabbed Stink Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 20 regions

West Coast Reishi

MODERATE
Fungus

West Coast Reishi observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

European Chafer

MODERATE
Insect

European Chafer observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Pacific Fritillary

MODERATE
Insect

Pacific Fritillary observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Chryxus Arctic

MODERATE
Insect

Chryxus Arctic observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Silvery Blue

MODERATE
Insect

Silvery Blue observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Northern Crescent

MODERATE
Insect

Northern Crescent observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

lime plant bug

MODERATE
Insect

lime plant bug observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

snowberry powdery mildew

MODERATE
Fungus

snowberry powdery mildew observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Multiflora rose rust

MODERATE
Fungus

Multiflora rose rust observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Giant Kelp

MODERATE
Other

Giant Kelp observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Sea Cauliflower

MODERATE
Other

Sea Cauliflower observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Sugar Kelp

MODERATE
Other

Description: This observation shows a brown alga with a long, single, undivided blade that is ruffled or crinkled along the edges, giving it a distinctive wavy appearance. The color ranges from yellowish-brown to medium brown. The blade attaches to a smooth, flexible, cylindrical stipe, which in turn is anchored to the rock substrate by a claw-like, profusely branched holdfast. Notes: This sample (SM-0020) is from a private collection that will be donated to the Museum of the North Herbariu

Affecting 3 regions

Sulphur Moth

MODERATE
Insect

Sulphur Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Simple Wave

MODERATE
Insect

Simple Wave observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Western Boxelder Bug

MODERATE
Insect

Stumbled across quite the scene on the sidewalk. Dozens of them mating & running around the same ~1-2 square feet with nymphs all about as well.

Affecting 4 regions

Small Milkweed Bug

MODERATE
Insect

Observed: Two milkweed bugs mating on a dried, and brown native milkweed plant. Logged as ā€œSmall Milkweed Bugā€ due to INaturalist’s recommendation Observed at 6:25 pm, approximately 40 minutes before sunset, in an east facing, fully shaded milkweed host garden on a dead browned native milkweed plant. When first observed, they were not responsive to my presence. At this time, I observed them moving together, secured by the end of their abdomens. They engaged in a movement that was similar to pl

Affecting 34 regions

Western Conifer Seed Bug

MODERATE
Insect

Global is over and want to continue including drawings just for regular observations with photo as primary. Is this permitted in non- project observations?

Affecting 18 regions

Green Stink Bug

MODERATE
Insect

Another mothing try at Green Acres Farm- fortunately not windy this time, so a few little guys came out to the light, along with some stink bugs. It was still hot even after the sun went down and it got dark, and it is very dry everywhere.

Affecting 29 regions

Uhler's Stink Bug

MODERATE
Insect

Uhler's Stink Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Gray Scoopwing

MODERATE
Insect

This poor guy at my UV light setup had a missing wing and could hardly fly. I caught it, brought it inside and gave it a piece of orange because I don't think it can survive in the wild anymore.

Affecting 2 regions

Pale Beauty

MODERATE
Insect

Pale Beauty observed in the wild. Research-grade iNaturalist observation.

Affecting 16 regions

Kirby's Backswimmer

MODERATE
Insect

Kirby's Backswimmer observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Skullcap Dapperling

MODERATE
Fungus

Skullcap Dapperling observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Lettuce Lichen

MODERATE
Fungus

Lettuce Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Coprinellus sp. 'radians-IN03'

MODERATE
Fungus

Coprinellus sp. 'radians-IN03' observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Candy Lichen

MODERATE
Fungus

Candy Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Buttercup Powdery Mildew

MODERATE
Fungus

Buttercup Powdery Mildew observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Golovinomyces verbasci

MODERATE
Fungus

Golovinomyces verbasci observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Golovinomyces asperifolii

MODERATE
Fungus

Golovinomyces asperifolii observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Podosphaera amelanchieris

MODERATE
Fungus

Podosphaera amelanchieris observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

winged kelp

MODERATE
Other

winged kelp observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Western Eyed Click Beetle

MODERATE
Insect

Western Eyed Click Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Western Polished Lady Beetle

MODERATE
Insect

Western Polished Lady Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Paraproba cincta

MODERATE
Insect

No idea what this little guy is, looks like some type of capsid

Affecting 1 region

Spindletree powdery mildew

MODERATE
Fungus

Spindletree powdery mildew observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Erysiphe eschscholziae

MODERATE
Fungus

Erysiphe eschscholziae observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Velvet-footed Tap

MODERATE
Fungus

Growing on a dead stump under oaks and conifers Found on bond brook recreational trails

Affecting 17 regions

Mustard Flower Rust

MODERATE
Fungus

Mustard Flower Rust observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

The Prince

MODERATE
Fungus

Yes! A. Augustus under one of the fence rails in the second week of August.

Affecting 3 regions

Golovinomyces sonchicola

MODERATE
Fungus

Golovinomyces sonchicola observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Melampsora androsaemi

MODERATE
Fungus

Melampsora androsaemi observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Erysiphe berberidis

MODERATE
Fungus

Erysiphe berberidis observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Pacific Candleflame Lichen

MODERATE
Fungus

Pacific Candleflame Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Shellfish-scented Russula

MODERATE
Fungus

Shellfish-scented Russula observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Podosphaera fuliginea

MODERATE
Fungus

Podosphaera fuliginea observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Podosphaera ruborum

MODERATE
Fungus

Podosphaera ruborum observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Red-femured Milkweed Borer

MODERATE
Insect

Red-femured Milkweed Borer observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Boreal Burying Beetle

MODERATE
Insect

Boreal Burying Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

studded sea balloon

MODERATE
Other

studded sea balloon observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Rugose Stag Beetle

MODERATE
Insect

Nah cus this is the 5th one I’ve seen in 6 days (i’m pretty sure a tree in my yard that produces a lot of sap is attracting them) I just really want a dead one so I can taxidermy it and hang it on my wall

Affecting 3 regions

Orange Jelly Spot

MODERATE
Fungus

Orange Jelly Spot observed in the wild. Research-grade iNaturalist observation.

Affecting 12 regions

Two-spotted Grass Bug

MODERATE
Insect

Two-spotted Grass Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Common Flathorn Plant Bug

MODERATE
Insect

Common Flathorn Plant Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Sulphur Tuft

MODERATE
Fungus

Sulphur Tuft observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Convergent Lady Beetle

MODERATE
Insect

Data collected in collaboration with Field Assistant Ryan Brockette & Thionna Strack.

Affecting 18 regions

Gray Hairstreak

MODERATE
Insect

Gray Hairstreak observed in the wild. Research-grade iNaturalist observation.

Affecting 14 regions

Red Admiral

MODERATE
Insect

Seemed to be warming its wings in a patch of sun in the middle of the sidewalk, where I accidentally disturbed it while walking by. It landed on me and hung out for a little bit before I encouraged it to disembark, and it continued on with its business.

Affecting 22 regions

Brown Marmorated Stink Bug

MODERATE
Insect

Found it crawling on the side of my garage tonight. My patio lights are on. Taken with Iphone.

Affecting 24 regions

Potato Mirid

MODERATE
Insect

Potato Mirid observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Gerhardtia foliicola

MODERATE
Fungus

Gerhardtia foliicola observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Asian Lady Beetle

MODERATE
Insect

Found alive but in terrible shape. Was swimming around in the water bowl we put out for feral cats here. Also appeared to have had a run in with a spider web, as it had something stuck all over it. Got a lot of suggestions for fungi and parasitoids that target ladybeetles, so maybe its appearance is more a function of a disease or parasite process taking place. It was definitely having trouble getting adound, but could be due to having been in the water for a long time and/or having bits of web

Affecting 41 regions

Carrot Plant Bug

MODERATE
Insect

Carrot Plant Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

North American Common Water Strider

MODERATE
Insect

The AC in the office wasn't working too great, so I shuffled over to the library in Cedar Hill to finish doing some work. Took a break a walked around -- some awesome wildlife habitat around the library!

Affecting 22 regions

Bee Moth

MODERATE
Insect

Attracted to UV light

Affecting 1 region

Silver-spotted Tiger Moth

MODERATE
Insect

Silver-spotted Tiger Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Small Magpie

MODERATE
Insect

Small Magpie observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Small White

MODERATE
Insect

Small White observed in the wild. Research-grade iNaturalist observation.

Affecting 16 regions

White-crossed Seed Bug

MODERATE
Insect

White-crossed Seed Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 19 regions

pale oyster

MODERATE
Fungus

pale oyster observed in the wild. Research-grade iNaturalist observation.

Affecting 8 regions

Lipstick Powderhorn

MODERATE
Fungus

Growing on Pinus contorta bark.

Affecting 1 region

Chocolate Chip Lichen

MODERATE
Fungus

Chocolate Chip Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Conchuela Bug

MODERATE
Insect

Conchuela Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Pea Powdery Mildew

MODERATE
Fungus

Pea Powdery Mildew observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

lobster mushroom

MODERATE
Fungus

lobster mushroom observed in the wild. Research-grade iNaturalist observation.

Affecting 19 regions

Shaggy Mane

MODERATE
Fungus

Shaggy Mane observed in the wild. Research-grade iNaturalist observation.

Affecting 9 regions

Erysiphe azaleae

MODERATE
Fungus

Erysiphe azaleae observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Golden Conecap

MODERATE
Fungus

Golden Conecap observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Large Yellow Underwing

MODERATE
Insect

Large Yellow Underwing observed in the wild. Research-grade iNaturalist observation.

Affecting 12 regions

Cabbage Lung Lichen

MODERATE
Fungus

Cabbage Lung Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Oyster thief

MODERATE
Other

Oyster thief observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Blue-green Sharpshooter

MODERATE
Insect

Blue-green Sharpshooter observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Rhododendron Leafhopper

MODERATE
Insect

These leafhoppers were common today on Pacific Rhododendron (*Rhododendron macrophyllum*) in the yard.

Affecting 11 regions

Gerrini

MODERATE
Insect

Gerrini observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Common Damsel Bug

MODERATE
Insect

Common Damsel Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Pacific Golden Chanterelle

MODERATE
Fungus

Pacific Golden Chanterelle observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

mica cap

MODERATE
Fungus

mica cap observed in the wild. Research-grade iNaturalist observation.

Affecting 8 regions

Placopsis lambii

MODERATE
Fungus

Placopsis lambii observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Green Moss-shingle Lichen

MODERATE
Fungus

Green Moss-shingle Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Shaggy Parasol

MODERATE
Fungus

Shaggy Parasol observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Smith's Bolete

MODERATE
Fungus

Smith's Bolete observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Boletus subalpinus

MODERATE
Fungus

Boletus subalpinus observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Calyptospora ornamentalis

MODERATE
Fungus

Calyptospora ornamentalis observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

King Bolete

MODERATE
Fungus

4500' My first impression was that it was infected with bolete mold (*Hypomyces chrysospermus*) but at closer inspection, it appears to be just an odd shaped king bolete (*Boletus edulis*). Was very firm to the touch. Found several more *B. edulis* nearby

Affecting 7 regions

Fib King

MODERATE
Fungus

Fib King observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Golden Buprestid Beetle

MODERATE
Insect

Golden Buprestid Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Knapweed Root Moth

MODERATE
Insect

Knapweed Root Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Two-spotted Lady Beetle

MODERATE
Insect

Two-spotted Lady Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Painted Lady Beetle

MODERATE
Insect

Painted Lady Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Girdler Moth

MODERATE
Insect

Girdler Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Herpetogramma aquilonalis

MODERATE
Insect

Herpetogramma aquilonalis observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Picipes tubaeformis

MODERATE
Fungus

Picipes tubaeformis observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Black Vine Weevil

MODERATE
Insect

Now TELL ME that this isn't a freaking puppy dog. I have cuteness aggression!!!!!

Affecting 18 regions

Red-shouldered Pine Borer

MODERATE
Insect

Red-shouldered Pine Borer observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

California Root Borer

MODERATE
Insect

Found flailing in circles in the grass and flipping itself upside down. One of its back legs wasn’t working and then other legs started twitching a few minutes later. Think it’s at end of life.

Affecting 5 regions

Tuckerman's Coral Lichen

MODERATE
Fungus

Tuckerman's Coral Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

flocculose inkcap

MODERATE
Fungus

flocculose inkcap observed in the wild. Research-grade iNaturalist observation.

Affecting 10 regions

white-spotted groundbug

MODERATE
Insect

found a ton of these guys running around in the grass - maybe 1cm long each?

Affecting 1 region

Eleodes rotundipennis

MODERATE
Insect

Eleodes rotundipennis observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Dusky Bolete

MODERATE
Fungus

Dusky Bolete observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Pale Swallowtail

MODERATE
Insect

Pale Swallowtail observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Purple-backed Cabbageworm Moth

MODERATE
Insect

Purple-backed Cabbageworm Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 8 regions

Fuller's rose weevil

MODERATE
Insect

Fuller's rose weevil observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Ipsilon Dart Moth

MODERATE
Insect

Ipsilon Dart Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 9 regions

artist's bracket

MODERATE
Fungus

artist's bracket observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Rush Skeletonweed Rust Fungus

MODERATE
Fungus

Extremely severe infection

Affecting 1 region

obscure root weevil

MODERATE
Insect

obscure root weevil observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

American Copper Underwing

MODERATE
Insect

This moth has been in the same spot every night. I’ve looked since July 22 during the day he hides under the siding.

Affecting 7 regions

Fly Agaric

MODERATE
Fungus

Two instances sighted along Mount Townsend Trail. One had been extensively nibbled by an unknown animal.

Affecting 12 regions

Common Sunburst Lichen

MODERATE
Fungus

Common Sunburst Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Small Dusty Wave

MODERATE
Insect

Small Dusty Wave observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

California Bordered Plant Bug

MODERATE
Insect

California Bordered Plant Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Four-spotted Yellowneck Moth

MODERATE
Insect

Four-spotted Yellowneck Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Taphrina populi-salicis

MODERATE
Fungus

Taphrina populi-salicis observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

onion-stalk parasol

MODERATE
Fungus

onion-stalk parasol observed in the wild. Research-grade iNaturalist observation.

Affecting 8 regions

Orange Rough-cap Tooth

MODERATE
Fungus

Left to mature a bit. Will go back and collect.

Affecting 1 region

Pycnoporellus fulgens

MODERATE
Fungus

Pycnoporellus fulgens observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

yellow map lichen

MODERATE
Fungus

yellow map lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Xestoleptura crassipes

MODERATE
Insect

Xestoleptura crassipes observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Common Ringlet

MODERATE
Insect

Common Ringlet observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Mordella hubbsi

MODERATE
Insect

Found on a Queen Ann's Lace

Affecting 1 region

Pine White

MODERATE
Insect

Pine White observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

West Coast Lady

MODERATE
Insect

West Coast Lady observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

White-spotted Sawyer

MODERATE
Insect

White-spotted Sawyer observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

California Pyrausta Moth

MODERATE
Insect

California Pyrausta Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Woodland Skipper

MODERATE
Insect

Woodland Skipper observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Powder-headed Tube Lichen

MODERATE
Fungus

Powder-headed Tube Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Turquoise Elfcup

MODERATE
Fungus

Turquoise Elfcup observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Spotted Cucumber Beetle

MODERATE
Insect

A screenshot from my friend @west87363 ā€˜s video. We observed the same individual insect but I wasn’t able to capture it on camera like he did.

Affecting 31 regions

Red-cross Shield Bug

MODERATE
Insect

Red-cross Shield Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

White Cheese Polypore

MODERATE
Fungus

White Cheese Polypore observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Southern sea palm

MODERATE
Other

Southern sea palm observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Western Tiger Beetle

MODERATE
Insect

Western Tiger Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Western Fairy Lady Beetle

MODERATE
Insect

Western Fairy Lady Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Spotted Tussock Moth

MODERATE
Insect

Spotted Tussock Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 10 regions

Dark Bitter Bolete

MODERATE
Fungus

Dark Bitter Bolete observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

flattened acid kelp

MODERATE
Other

Drift on sand flat near mouth of Netarts Bay. Central axis about 1-2 cm wide. Three orders of branching

Affecting 3 regions

Rough strawberry root weevil

MODERATE
Insect

Rough strawberry root weevil observed in the wild. Research-grade iNaturalist observation.

Affecting 9 regions

American Giant Water Bug

MODERATE
Insect

American Giant Water Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 11 regions

Knapweed Root Weevil

MODERATE
Insect

Knapweed Root Weevil observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Dispirited Tiger Beetle

MODERATE
Insect

Dispirited Tiger Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Golovinomyces ambrosiae

MODERATE
Fungus

Golovinomyces ambrosiae observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Little Rockweed

MODERATE
Other

Little Rockweed observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Tissue Moth

MODERATE
Insect

Tissue Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Exobasidium cassiopes

MODERATE
Fungus

Exobasidium cassiopes observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Rosy Aemilia

MODERATE
Insect

Rosy Aemilia observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Earpick Fungus

MODERATE
Fungus

Earpick Fungus observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Polyphemus Moth

MODERATE
Insect

I found this, this morning, on my parents driveway. Does any body know what animal would be able to remove the wings of a Polyphemus Moth (and its pictured antennae) with such surgical precision? There is no evidence of any mastication left behind?

Affecting 26 regions

admirable bolete

MODERATE
Fungus

admirable bolete observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Phaeolus hispidoides

MODERATE
Fungus

Phaeolus hispidoides observed in the wild. Research-grade iNaturalist observation.

Affecting 13 regions

Brown-eyed Sunshine Lichen

MODERATE
Fungus

Brown-eyed Sunshine Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Twenty-spotted Lady Beetle

MODERATE
Insect

What a great evening with around 125 folks at Spring Creek Forest Preserve to celebrate moth week. Great fun and lots of excitement to see some bugs. :)

Affecting 21 regions

Laburnum Leafminer

MODERATE
Insect

Laburnum Leafminer observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Short-stemmed Russula

MODERATE
Fungus

Short-stemmed Russula observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

fairy ring marasmius

MODERATE
Fungus

fairy ring marasmius observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Fall Webworm Moth

MODERATE
Insect

Fall Webworm Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 16 regions

Isabella Tiger Moth

MODERATE
Insect

Isabella Tiger Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 25 regions

Conifer Chicken of the Woods

MODERATE
Fungus

Conifer Chicken of the Woods observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Driftwood Rim-lichen

MODERATE
Fungus

Driftwood Rim-lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Brown Pug

MODERATE
Insect

Brown Pug observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Bleeding Fairy Helmet

MODERATE
Fungus

Bleeding Fairy Helmet observed in the wild. Research-grade iNaturalist observation.

Affecting 11 regions

Quinine Conk

MODERATE
Fungus

Quinine Conk observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Scaly Chanterelle

MODERATE
Fungus

Scaly Chanterelle observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

White Chanterelle

MODERATE
Fungus

White Chanterelle observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

red coral

MODERATE
Fungus

red coral observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Raspberry Crown Borer

MODERATE
Insect

Raspberry Crown Borer observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Western Tiger Swallowtail

MODERATE
Insect

Western Tiger Swallowtail observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

flowerpot parasol

MODERATE
Fungus

growing unexpectedly in a houseplant; multiple stalks in a 10" diameter pot, bright yellow, 1/2" tall, 2-3mm wide head, smaller ones are just yellow dots 1mm wide

Affecting 23 regions

Western Deer Mushroom

MODERATE
Fungus

Western Deer Mushroom observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Sharp-scaly Pholiota

MODERATE
Fungus

Sharp-scaly Pholiota observed in the wild. Research-grade iNaturalist observation.

Affecting 11 regions

fluted bird's nest fungus

MODERATE
Fungus

fluted bird's nest fungus observed in the wild. Research-grade iNaturalist observation.

Affecting 11 regions

Monilinia sp. 'CA01'

MODERATE
Fungus

Monilinia sp. 'CA01' observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Pink Sherbet Polypore

MODERATE
Fungus

Substrate: dead tree

Affecting 1 region

pig's ears

MODERATE
Fungus

pig's ears observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Apricot Jelly

MODERATE
Fungus

Apricot Jelly observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Wood Woolly-foot

MODERATE
Fungus

Wood Woolly-foot observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Fir-Cone Mushroom

MODERATE
Fungus

Growing on Douglas Fir cones in old growth forest. Many cones like this along the forest floor

Affecting 1 region

Rough-lipped Darkling Beetle

MODERATE
Insect

Rough-lipped Darkling Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Podosphaera spiraeae

MODERATE
Fungus

Podosphaera spiraeae observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Podosphaera erigerontis-canadensis

MODERATE
Fungus

Podosphaera erigerontis-canadensis observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Golovinomyces verbenae

MODERATE
Fungus

Golovinomyces verbenae observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Erysiphe radulescui

MODERATE
Fungus

Erysiphe radulescui observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Erysiphe medicaginis

MODERATE
Fungus

Erysiphe medicaginis observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

tangerine bonnet

MODERATE
Fungus

tangerine bonnet observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

violet webcap

MODERATE
Fungus

violet webcap observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Obscure Darkling Beetle

MODERATE
Insect

Obscure Darkling Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Sagebrush Goldspeck Lichen

MODERATE
Fungus

Sagebrush Goldspeck Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

gold cobblestone lichen

MODERATE
Fungus

gold cobblestone lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Sawadaea bicornis

MODERATE
Fungus

Sawadaea bicornis observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

White Dapperling

MODERATE
Fungus

Cap 7 cm, stipe 6.5 x 1 cm and enlarged to 2 cm at the base. Growing in grassy, weedy backyard near Doug fir trees.

Affecting 6 regions

Laccophilus maculosus decipiens

MODERATE
Insect

Laccophilus maculosus decipiens observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Wrinkled Crust

MODERATE
Fungus

Wrinkled Crust observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

hairy rove beetle

MODERATE
Insect

hairy rove beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

lion's-mane mushroom

MODERATE
Fungus

Beautiful young lion's mane growing on the end of a maple log. This counts at least 5 years this mushroom has grown back on this log at the end of every summer.

Affecting 4 regions

Capitotricha bicolor

MODERATE
Fungus

Spotted by Miss Leah Bendlin.

Affecting 1 region

Erysiphe sydowiana

MODERATE
Fungus

Erysiphe sydowiana observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Deep purple bolete

MODERATE
Fungus

Probably feels so good to be a banana slug and eat some of these

Affecting 1 region

dead man's fingers

MODERATE
Fungus

dead man's fingers observed in the wild. Research-grade iNaturalist observation.

Affecting 11 regions

cracked-cap bolete

MODERATE
Fungus

cracked-cap bolete observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Three-ribbed kelp

MODERATE
Other

Three-ribbed kelp observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Ragwort Flea Beetle

MODERATE
Insect

Ragwort Flea Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Narrow-collared Snail-eating Beetle

MODERATE
Insect

Narrow-collared Snail-eating Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Douglas Fir Adelgid

MODERATE
Insect

Douglas Fir Adelgid observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

smoky dapperling

MODERATE
Fungus

smoky dapperling observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Pear Rust

MODERATE
Fungus

Pear Rust observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Bindweed Powdery Mildew

MODERATE
Fungus

Bindweed Powdery Mildew observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

mahonia rust

MODERATE
Fungus

mahonia rust observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Scaly oysterling

MODERATE
Fungus

Scaly oysterling observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Olive Shaggy Parasol

MODERATE
Fungus

Olive Shaggy Parasol observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Methuselah's Beard Lichen

MODERATE
Fungus

Methuselah's Beard Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Ramaria acrisiccescens

MODERATE
Fungus

Ramaria acrisiccescens observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Garden Carrion Beetle

MODERATE
Insect

Garden Carrion Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Chip Cherries

MODERATE
Fungus

Chip Cherries observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Thread Bug

MODERATE
Insect

Thread Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Bear's head

MODERATE
Fungus

Bear's head observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Fat Jack

MODERATE
Fungus

Fat Jack observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Zythia resinae

MODERATE
Fungus

Zythia resinae observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Devil's matchstick

MODERATE
Fungus

Devil's matchstick observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Locust Borer

MODERATE
Insect

This is a picture of a Megacyllene robiniae at Fort Armistead Park in Baltimore City, Maryland.

Affecting 23 regions

Granulated Ground Beetle

MODERATE
Insect

Granulated Ground Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Western Painted Suillus

MODERATE
Fungus

Western Painted Suillus observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Bay Polypore

MODERATE
Fungus

Hard and non-flexible. I couldn't break it by hand, so it seems like it's been turned into leather, not just dried!

Affecting 9 regions

Lilac Bonnet

MODERATE
Fungus

Lilac Bonnet observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Clay-coloured Weevil

MODERATE
Insect

Clay-coloured Weevil observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Rusty Tussock Moth

MODERATE
Insect

Rusty Tussock Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Oleander Aphid

MODERATE
Insect

Observed on a 15 minute walking survey at Kirk Park. This survey is part of the Paired Garden Study project associated with Biodiversity in Urban Gardens (BUG) and is run by the California Native Plant Society. This observation is from the native plant garden. My survey here ran from 4:44PM-4:59PM. More info about BUG is available at the link below (scroll down to Santa Clara Valley Research Project for more info about the Paired Garden study) https://www.cnps.org/education/bug Umbrella projec

Affecting 33 regions

Brown Birch-bolete

MODERATE
Fungus

Brown Birch-bolete observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Powdery Mildew

LOW
Fungus

A widespread group of fungal diseases that produce a distinctive white powdery coating on leaves and shoots. It affects hundreds of tree, shrub, and plant species. Unlike most fungi, it thrives in warm, dry conditions with high humidity.

Affecting 49 regions

Leaf Spot Diseases

LOW
Fungus

A broad group of fungal diseases that cause discrete spots on the leaves of deciduous trees. Most are primarily cosmetic and do not seriously harm established trees. They are most common during wet spring and summer weather. Many different fungi cause leaf spots on different tree species.

Affecting 38 regions

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