Diario del proyecto Alaska Forest Health Observations

28 de julio de 2021

Yellow-horned horntail (Urocerus flavicornis)

It's that time of year when the yellow-horned horntails are emerging but don't let their looks deceive you, they are gentle giants! Horntails are related to wasps but cannot sting. Instead, that long projection on the back of the females is called an ovipositor, which they use to lay their eggs beneath the bark of dying or freshly cut trees. Some key features to help you identify a yellow-horned horntail are 1 - long, bright yellow antennae, 2- bright yellow eyes, and 3 - a tube-like body shape. Check out the photo below to see the features of our local yellow-horned horntail.

The yellow-horned horntail is a natural part of our forest ecosystem here in Alaska but is frequently mistaken for the Asian giant hornet (AGH) due to its size and bright striping. AGH has not been found in Alaska, but we do appreciate that folks are keeping an eye out for exotic organisms.

Anotado en miércoles, 28 de julio de 2021 a las 08:54 PM por awenninger awenninger | 1 comentario | Deja un comentario

27 de julio de 2021

Needle Rust Fungi

Orange-tipped trees? Rust fungi are coming out in full force this July, bolstered by the wet June weather. Many rusts have multiple host plants & 5 annual spore stages! Trees can tolerate needle rust damage. Learn more at https://bit.ly/2TpnzrI #ForestHealth #AlaskaForestHealth

Anotado en martes, 27 de julio de 2021 a las 04:15 PM por awenninger awenninger | 0 comentarios | Deja un comentario

21 de julio de 2021

Western Blackheaded Budworm Outbreak in Southeast AK

There is a western blackhead budworm outbreak happening in parts of SE Alaska. The caterpillars feed on new hemlock growth causing reddish tips and an abundance of caterpillar Pile of poo raining down from above, littering the plants below. #AlaskaForestHealth https://bit.ly/2Ucg87W

Anotado en miércoles, 21 de julio de 2021 a las 04:22 PM por awenninger awenninger | 0 comentarios | Deja un comentario

13 de noviembre de 2020

Zombie Virus (Baculoviridae)

Did you know that caterpillars can become zombies- even when it’s not Spooky Season? Caterpillars can suffer from a “zombie virus” (Baculoviridae) that forces them to climb, like zombies, to the tops of branches as they liquefy from the inside out! #AlaskaForestHealth
Anotado en viernes, 13 de noviembre de 2020 a las 11:28 PM por interiorskb interiorskb | 0 comentarios | Deja un comentario

16 de octubre de 2020

Humongous Fungus - Honey Mushrooms!

Honey mushrooms from the fungus Armillaria can emerge in clumps from the trees and roots they infect. Some large genetically-related clumps have been named the "Humongous Fungus," considered among the largest living organisms on earth! #AlaskaForestHealth
https://www.fs.usda.gov/detailfull/r10/forest-grasslandhealth/?cid=FSEPRD608223&width=full

Anotado en viernes, 16 de octubre de 2020 a las 04:01 PM por awenninger awenninger | 0 comentarios | Deja un comentario

15 de octubre de 2020

Spruce aphids -- Elatobium abietinum

Most forest creatures are winding down for winter, but spruce aphids are just getting started! Forest Health Protection surveyed for this invasive insect which is found thru-out SE Alaska & parts of the Kenai Peninsula. #alaskaforesthealth https://bit.ly/3iQtPzu

Anotado en jueves, 15 de octubre de 2020 a las 10:01 PM por awenninger awenninger | 0 comentarios | Deja un comentario

Sirococcus Shoot Blight on Hemlock

While not everyone enjoyed the rainy summer in SE Alaska, the fungus that kills hemlock shoots certainly did! Look for it and you shall see it! Learn more about this disease of western and mountain hemlocks at https://bit.ly/33Vgr97 #AlaskaForestHealth #SirococcusShootBlight

Anotado en jueves, 15 de octubre de 2020 a las 09:59 PM por awenninger awenninger | 0 comentarios | Deja un comentario

29 de septiembre de 2020

Spruce beetle -- time to process your firewood!

With cooler temperatures approaching, it's time to start processing your dead spruce into firewood. Processing recently killed & attacked trees now can reduce the spread of spruce beetles to new trees next spring. Visit http://alaskasprucebeetle.org for more info! #AlaskaForestHealth

Anotado en martes, 29 de septiembre de 2020 a las 03:41 PM por awenninger awenninger | 0 comentarios | Deja un comentario

16 de septiembre de 2020

Foliar tar spot fungus (Rhytisma arbuti) on rusty menziesia

Have you seen black spots on false azalea/rusty menziesia? Plentiful rain in SE Alaska has led to an abundance of the foliar tar spot fungus (Rhytisma arbuti). It doesn’t do much damage since it occurs after seedset. For more information visit: ow.ly/dUma50BnyTq

Anotado en miércoles, 16 de septiembre de 2020 a las 03:49 PM por awenninger awenninger | 0 comentarios | Deja un comentario

Spruce beetle update (Dendroctonus rufipennis)

The Mat-Su region continues to experience extensive spruce tree mortality due to a spruce beetle outbreak. #AKForestHealth scientists from Anchorage & Fairbanks visited the region to view the area & discuss the health of the forests. For more information, visit alaskasprucebeetle.org

Anotado en miércoles, 16 de septiembre de 2020 a las 03:37 PM por awenninger awenninger | 0 comentarios | Deja un comentario