TreeIssues

Utah

111 active alerts in this region

TreeIssues monitors plant and tree health threats across Utah. 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 Utah 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

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

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

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

White-lined Sphinx

MODERATE
Insect

Extremely friendly breezeway light visitor. I attempted to deposit it on nearby common evening primrose but it followed me back inside. Audio is the moth's wings.

Affecting 22 regions

Anise Swallowtail

MODERATE
Insect

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

Affecting 2 regions

European Firebug

MODERATE
Insect

I have been seeing many of these in Iona thus year and also smaller mostly red ones as well. ChatGPT identifies it as a European Firebug.

Affecting 3 regions

Eastern Boxelder Bug

MODERATE
Insect

A red-eyed boxelder bug chills on the sunny side of a concrete street lamp post It's a sweltering 30° C and sunny

Affecting 21 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

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

Southern Masked Chafer

MODERATE
Insect

Attracted to light at night. The plant on which the insect is resting (sweet Joe Pye weed) is located beside an exterior light that was illuminated.

Affecting 33 regions

Ornate Checkered Beetle

MODERATE
Insect

Ornate Checkered Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Masked Hunter

MODERATE
Insect

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

Affecting 8 regions

Putnam's Cicada

MODERATE
Insect

Putnam's Cicada 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

Cottonwood Stag Beetle

MODERATE
Insect

Tons of dead ones saw 4 alive, three of the four were males and two of them were fighting

Affecting 4 regions

Ten-lined June Beetle

MODERATE
Insect

Not sure what this was, at first thought a potato bug, but looking at closer realized it was not. Not the kind of June bug I am used to seeing. Pretty sure this a Ten-lined Beetle, got this photo with my Android camera using the magnifying glass app. Better photo than with my Nikon P950. After reading about this beetle and the Long Haired Beetle, I touched the protonum on this beetle and it is smooth.

Affecting 7 regions

Edith's Checkerspot

MODERATE
Insect

Edith's Checkerspot observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

black knot

MODERATE
Fungus

black knot observed in the wild. Research-grade iNaturalist observation.

Affecting 9 regions

Common Flathorn Plant Bug

MODERATE
Insect

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

Affecting 4 regions

Campylomma verbasci

MODERATE
Insect

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

Affecting 1 region

Citrus Cicada

MODERATE
Insect

Found on mesquite tree, cicadas have been living in it and making their signature buzzing sound for several weeks now. However, it’s become significantly more prominent this week with the onset of the monsoonal storm activity. We are currently watching a storm roll in, and the cicadas seem to get much more active with higher humidity and dew points. The buzzing gets much louder in the evening, particularly as storm clouds move in. They’re still loud on clearer days, but seem to be more so on s

Affecting 3 regions

Transverse Lady Beetle

MODERATE
Insect

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

Affecting 3 regions

Poison hemlock moth

MODERATE
Insect

Poison hemlock moth observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Fractured Western Snout

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 3 regions

Privet Leafhopper

MODERATE
Insect

Privet Leafhopper observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Mealy Plum Aphid

MODERATE
Insect

Photo courtesy of my Dad'sDaughter#4 :)

Affecting 1 region

Limnoporus notabilis

MODERATE
Insect

Limnoporus notabilis observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Punctured Tiger Beetle

MODERATE
Insect

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

Affecting 27 regions

Red-femured Milkweed Borer

MODERATE
Insect

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

Affecting 6 regions

Obscure Darkling Beetle

MODERATE
Insect

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

Affecting 4 regions

Margined Burying Beetle

MODERATE
Insect

Was following this beetle, and he lead me to dead mouse and crawled inside. Pretty disturbing

Affecting 3 regions

Cobalt Milkweed Beetle

MODERATE
Insect

Cobalt Milkweed Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 3 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

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

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

Kirby's Backswimmer

MODERATE
Insect

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

Affecting 4 regions

Thirteen-spotted Lady Beetle

MODERATE
Insect

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

Affecting 6 regions

Elm Seed Bug

MODERATE
Insect

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

Affecting 1 region

Collared Arches Moth

MODERATE
Insect

Collared Arches Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Ashy Gray Lady Beetle

MODERATE
Insect

Mary's Creek Open Space - accessed with permission Frankie and I tried doing some blacklighting this evening and avoided some rain. Quite a few things showed up to the lights!

Affecting 11 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

Centrocoris volxemi

MODERATE
Insect

Centrocoris volxemi observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Mountain Bee Assassin

MODERATE
Insect

Mountain Bee Assassin observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Jagged Ambush Bug

MODERATE
Insect

Jagged Ambush Bug observed in the wild. Research-grade iNaturalist observation.

Affecting 6 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

Four-spurred Assassin 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 5 regions

Leafhopper Assassin Bug

MODERATE
Insect

It was 105 degrees today... Hot. Dry too. On my way to get some watermelon, I stopped at Veteran's Park for a bit.

Affecting 6 regions

Lachnellula arida

MODERATE
Fungus

Growing right next to Guepiniopsis alpina

Affecting 1 region

Elegant Sunburst Lichen

MODERATE
Fungus

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

Affecting 4 regions

Topiary Grass-veneer

MODERATE
Insect

Topiary Grass-veneer observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Sawadaea tulasnei

MODERATE
Fungus

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

Affecting 4 regions

Small Milkweed Bug

MODERATE
Insect

Observed: Two milkweed bugs mating on a dried, and brown native milkweed plant. Logged as “Small Milkweed Bug” 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

Golden Buprestid Beetle

MODERATE
Insect

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

Affecting 3 regions

Four-spotted Moth

MODERATE
Insect

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

Affecting 3 regions

Convergent Lady Beetle

MODERATE
Insect

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

Affecting 18 regions

Conchuela Bug

MODERATE
Insect

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

Affecting 7 regions

Glassy Cutworm Moth

MODERATE
Insect

Glassy Cutworm Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Fiery Skipper

MODERATE
Insect

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

Affecting 7 regions

lacquered bracket

MODERATE
Fungus

lacquered bracket observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Acute-lined Flower Moth

MODERATE
Insect

Acute-lined Flower Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Ruby Porcini

MODERATE
Fungus

Ruby Porcini observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Figeater Beetle

MODERATE
Insect

location: outside the younes & soraya nazarian center for the performing arts at csun unsure how to mark it on mobile but it looks dead

Affecting 5 regions

Pole Borer

MODERATE
Insect

Pole Borer observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Opatroides punctulatus

MODERATE
Insect

Opatroides punctulatus observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Charlie Brown Blister Beetle

MODERATE
Insect

Charlie Brown Blister Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Bumble Flower Beetle

MODERATE
Insect

Bumble Flower Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 7 regions

Large Yellow Underwing

MODERATE
Insect

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

Affecting 12 regions

Mouse-colored Euchaetes

MODERATE
Insect

Mouse-colored Euchaetes observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Charcoal Seed Bug

MODERATE
Insect

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

Affecting 4 regions

Carrot Beetle

MODERATE
Insect

Carrot Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 10 regions

Sweet Click Beetle

MODERATE
Insect

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

Affecting 5 regions

Mourning Cloak

MODERATE
Insect

Mourning Cloak observed in the wild. Research-grade iNaturalist observation.

Affecting 10 regions

Lilac Root Weevil

MODERATE
Insect

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

Affecting 3 regions

Western Tiger Beetle

MODERATE
Insect

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

Affecting 4 regions

Hollyhock Weevil

MODERATE
Insect

Hollyhock Weevil observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Grant's Hercules Beetle

MODERATE
Insect

Very large male. 70 + mm. Came to metal halogen light trap along with numerous other Grants Hercules beetles.

Affecting 3 regions

Army Cutworm Moth

MODERATE
Insect

Army Cutworm Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Asian Carpet Beetle

MODERATE
Insect

Asian Carpet Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Rough-lipped Darkling Beetle

MODERATE
Insect

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

Affecting 2 regions

Red-headed Ash Borer

MODERATE
Insect

Red-headed Ash Borer observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Red-shouldered Bug

MODERATE
Insect

Red-shouldered Bug (Jadera haematoloma) 18 September 2026 Avondale Park Denton, Denton County, Texas A veritable mating Red-shouldered Bug (Jadera haematoloma) hotspot at the park as we've noticed a large number of these bugs mating in the same spot for days on end. There must be a host soapberry tree nearby per this online quote: "Yes, in the red-shouldered soapberry bug (Jadera haematoloma), the female is larger than the male." So this dimorphism indicates that in our pic above the fem

Affecting 13 regions

Bluegrass Billbug

MODERATE
Insect

Bluegrass Billbug observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Rocky Mountain Billbug

MODERATE
Insect

Rocky Mountain Billbug observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Ironweed Curculio

MODERATE
Insect

Ironweed Curculio observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Five-spotted Hawk Moth

MODERATE
Insect

Five-spotted Hawk Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Great Spangled Fritillary

MODERATE
Insect

Great Spangled Fritillary observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Woodland Skipper

MODERATE
Insect

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

Affecting 3 regions

Hunting Billbug

MODERATE
Insect

Hunting Billbug observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

truncated club

MODERATE
Fungus

truncated club observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Polyozellus atrolazulinus

MODERATE
Fungus

Polyozellus atrolazulinus observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

flocculose inkcap

MODERATE
Fungus

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

Affecting 10 regions

Armyworm Moth

MODERATE
Insect

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

Affecting 17 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

Western Rhinoceros Beetle

MODERATE
Insect

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

Affecting 4 regions

Dark Firefly

MODERATE
Insect

Dark Firefly observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

dune stinkhorn

MODERATE
Fungus

dune stinkhorn observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

Brown Carpet Beetle

MODERATE
Insect

Brown Carpet Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Locust Borer

MODERATE
Insect

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

Affecting 23 regions

Carolina Sphinx

MODERATE
Insect

Carolina Sphinx observed in the wild. Research-grade iNaturalist observation.

Affecting 20 regions

Arizona Sister

MODERATE
Insect

Arizona Sister observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Yellow-veined Moth

MODERATE
Insect

Yellow-veined Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Rough strawberry root weevil

MODERATE
Insect

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

Affecting 9 regions

Small White

MODERATE
Insect

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

Affecting 16 regions

Shaggy Mane

MODERATE
Fungus

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

Affecting 9 regions

Bronze Ground Beetle

MODERATE
Insect

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

Affecting 9 regions

Northern Tamarisk Beetle

MODERATE
Insect

Northern Tamarisk Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

White-striped Dart

MODERATE
Insect

White-striped Dart observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Dingy Cutworm Moth

MODERATE
Insect

Dingy Cutworm Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

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

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