TreeIssues

Alaska

105 active alerts in this region

TreeIssues monitors plant and tree health threats across Alaska. 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 Alaska state agricultural agencies. Each alert includes severity ratings, affected species, symptoms, and recommended treatments.

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

Gnathacmaeops pratensis

MODERATE
Insect

Gnathacmaeops pratensis observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

White-striped Black

MODERATE
Insect

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

Affecting 4 regions

Hummingbird Clearwing

MODERATE
Insect

Hummingbird Clearwing observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Cabbage Lung Lichen

MODERATE
Fungus

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

Affecting 2 regions

Puccinia adoxae

MODERATE
Fungus

Dark brown telia on Adoxa moschatellina

Affecting 1 region

Crinkled Snow Lichen

MODERATE
Fungus

Crinkled Snow Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Netted Specklebelly

MODERATE
Fungus

Netted Specklebelly 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

Exobasidium vaccinii-uliginosi

MODERATE
Fungus

Exobasidium vaccinii-uliginosi observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Red-fruited Pixie Cup

MODERATE
Fungus

Red-fruited Pixie Cup observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Yellow Lichen

MODERATE
Fungus

Yellow Lichen 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

Beard-lichen parasite

MODERATE
Fungus

Beard-lichen parasite observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Canadian Tiger Swallowtail

MODERATE
Insect

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

Affecting 1 region

Northern Red Belt

MODERATE
Fungus

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

Affecting 9 regions

aspen oyster mushroom

MODERATE
Fungus

aspen oyster mushroom observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Candy Lichen

MODERATE
Fungus

Candy Lichen 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

False Funeral Bell

MODERATE
Fungus

False Funeral Bell observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Arctic Kidney Lichen

MODERATE
Fungus

Arctic Kidney Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Star-tipped Reindeer Lichen

MODERATE
Fungus

Star-tipped Reindeer Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

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

birch polypore

MODERATE
Fungus

These keep showing up on the large birch log - third or perhaps fourth year. I made an adhesive bandage out of a strip of the pore layer and cut up two of the fruit bodies to use to make mushroom paper. Using my hand constantly, the bandage has remained in place for a couple of hours.

Affecting 10 regions

Aspen Serpentine Leafminer Moth

MODERATE
Insect

Aspen Serpentine Leafminer Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

White-spotted Sawyer

MODERATE
Insect

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

Affecting 5 regions

Dragon kelp

MODERATE
Other

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

Affecting 1 region

Thoughtful Apamea

MODERATE
Insect

Thoughtful Apamea observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Bull Kelp

MODERATE
Other

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

Affecting 4 regions

Greenish Blue

MODERATE
Insect

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

Affecting 1 region

Netted shield lichen

MODERATE
Fungus

Netted shield lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Arctic Butterfingers Lichen

MODERATE
Fungus

Arctic Butterfingers Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Resplendent Click Beetle

MODERATE
Insect

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

Affecting 1 region

Sea Cauliflower

MODERATE
Other

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

Affecting 4 regions

Sieve kelp

MODERATE
Other

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

Affecting 2 regions

Hedophyllum nigripes

MODERATE
Other

Hedophyllum nigripes observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

spruce witch's broom rust

MODERATE
Fungus

spruce witch's broom rust observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Hoof Fungus

MODERATE
Fungus

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

Affecting 1 region

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

Witch's hair

MODERATE
Other

This observation shows a coarse, dark olive-brown to almost black brown alga. The thallus is stiff and much-branched, reaching up to 2 m (6.5 ft) in height. The branches are cylindrical to slightly flattened and arranged in an irregularly alternate pattern, with sharply pointed spines being a prominent feature. The plant arises from a small, disc-shaped holdfast. Notes: This sample (SM-0024) is from a private collection that will be donated to the Museum of the North Herbarium.

Affecting 1 region

Lettered Habrosyne Moth

MODERATE
Insect

Lettered Habrosyne Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 5 regions

Japanese Wireweed

MODERATE
Other

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

Affecting 4 regions

Pseudohermonassa flavotincta

MODERATE
Insect

Pseudohermonassa flavotincta observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Gray Spruce Looper Moth

MODERATE
Insect

Gray Spruce Looper Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 4 regions

spotted milkcap

MODERATE
Fungus

spotted milkcap observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Chocolate Chip Lichen

MODERATE
Fungus

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

Affecting 2 regions

veinless pelt lichen

MODERATE
Fungus

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

Affecting 1 region

chaga

MODERATE
Fungus

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

Affecting 7 regions

Black Fire Beetle

MODERATE
Insect

Black Fire Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Hooded Tube Lichen

MODERATE
Fungus

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

Affecting 3 regions

Elegant Sunburst Lichen

MODERATE
Fungus

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

Affecting 4 regions

Birch Shield Bug

MODERATE
Insect

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

Affecting 1 region

truncated club

MODERATE
Fungus

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

Affecting 3 regions

Fly Agaric

MODERATE
Fungus

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

Affecting 12 regions

Powdered Sunshine Lichen

MODERATE
Fungus

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

Affecting 1 region

Fireweed Clearwing Moth

MODERATE
Insect

Fireweed Clearwing Moth observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Ochre-banded Conk

MODERATE
Fungus

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

Affecting 5 regions

Lion Beetle

MODERATE
Insect

Near hemlock logs

Affecting 1 region

Rusty Tussock Moth

MODERATE
Insect

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

Affecting 2 regions

Apricot Jelly

MODERATE
Fungus

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

Affecting 2 regions

Yellowfoot

MODERATE
Fungus

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

Affecting 2 regions

Shaggy Mane

MODERATE
Fungus

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

Affecting 9 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

Stereo Tooth

MODERATE
Fungus

Growing beneath / adjacent an old stand of sitka spruce which also has king boleyes and amanita muscaria growing at different times.

Affecting 1 region

Devil's matchstick

MODERATE
Fungus

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

Affecting 3 regions

Western Yellow-veiled Amanita

MODERATE
Fungus

Western Yellow-veiled Amanita observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Soothsayer Dart

MODERATE
Insect

Soothsayer Dart observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Herald Moth

MODERATE
Insect

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

Affecting 3 regions

Arctic Rag Lichen

MODERATE
Fungus

Arctic Rag Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Pear-shaped Puffball

MODERATE
Fungus

Pear-shaped Puffball observed in the wild. Research-grade iNaturalist observation.

Affecting 5 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

Veined Cup

MODERATE
Fungus

Veined Cup observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Shaggy Legged Ringless Amanita

MODERATE
Fungus

Shaggy Legged Ringless Amanita 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

Bedstraw Hawkmoth

MODERATE
Insect

Bedstraw Hawkmoth observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Arctic tumbleweed

MODERATE
Fungus

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

Affecting 1 region

mica cap

MODERATE
Fungus

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

Affecting 8 regions

Pachyta lamed

MODERATE
Insect

Pachyta lamed observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Banded Sexton Beetle

MODERATE
Insect

Banded Sexton Beetle observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Conifer Chicken of the Woods

MODERATE
Fungus

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

Affecting 5 regions

Green Wood Cup

MODERATE
Fungus

Green Wood Cup observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Ancient Coral Lichen

MODERATE
Fungus

Ancient Coral Lichen observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

redleg jellybelly

MODERATE
Fungus

redleg jellybelly 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

Lentil Shanklet

MODERATE
Fungus

Lentil Shanklet observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Red-juice Tooth

MODERATE
Fungus

Red-juice Tooth observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Russula crassotunicata

MODERATE
Fungus

Russula crassotunicata observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Milbert's Tortoiseshell

MODERATE
Insect

Milbert's Tortoiseshell observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Fool's Funnel

MODERATE
Fungus

Fool's Funnel observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

angel's wings

MODERATE
Fungus

angel's wings observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Tricholoma subacutum

MODERATE
Fungus

Tricholoma subacutum observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Erysiphe ludens

MODERATE
Fungus

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

Affecting 1 region

Coral tooth fungus

MODERATE
Fungus

Coral tooth fungus observed in the wild. Research-grade iNaturalist observation.

Affecting 6 regions

Lichen Agaric

MODERATE
Fungus

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

Affecting 3 regions

Common Sun Beetle

MODERATE
Insect

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

Affecting 1 region

Limnoporus rufoscutellatus

MODERATE
Insect

First water strider I’ve seen in this area…. No open water

Affecting 1 region

Green Witch's Hair

MODERATE
Fungus

Green Witch's Hair observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

membranous pelt lichen

MODERATE
Fungus

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

Affecting 2 regions

Peppery Bolete

MODERATE
Fungus

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

Affecting 3 regions

Spotted Tussock Moth

MODERATE
Insect

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

Affecting 10 regions

Purple Spindles

MODERATE
Fungus

Purple Spindles observed in the wild. Research-grade iNaturalist observation.

Affecting 3 regions

Gymnopilus hybridus

MODERATE
Fungus

Gymnopilus hybridus observed in the wild. Research-grade iNaturalist observation.

Affecting 1 region

Tree Bacon

MODERATE
Fungus

Tree Bacon observed in the wild. Research-grade iNaturalist observation.

Affecting 2 regions

Golden Cap

MODERATE
Fungus

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

Affecting 1 region

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