Archivos de Diario para agosto 2021

10 de agosto de 2021

Spruce Broom Rust - Spore Cloud

Dr. Lori Winton beats a broom rust to release a spore cloud. In the spring, the causal fungus produces a foul odor to attract insects for cross-fertilization. The tree responds to this pathogen by growing the characteristic brooms #AlaskaForestHealth https://bit.ly/3s3STJG

Anotado en 10 de agosto de 2021 a las 06:27 PM por awenninger awenninger | 0 comentarios | Deja un comentario

2021 Western Blackheaded Budworm Outbreak in Southeast AK Video by Dr. Elizabeth Graham

Ever heard of frass? And what does it have to do with defoliation? 🐛💩 Learn about these and a recurring insect outbreak from Forest Service Entomologist Dr. Elizabeth Graham. https://vimeo.com/584107779

Anotado en 10 de agosto de 2021 a las 06:41 PM por awenninger awenninger | 0 comentarios | Deja un comentario

Chokecherry Gall Midge, Contarinia virginianiae

Have you seen this gall on chokecherry? Alaska IPM is tracking the distribution of the chokecherry gall midge and could use your help! This small, orange fly larva lives inside the fruits of chokecherry trees. The berry expands into a fleshy, hollow gall that protects the larvae as they develop. If you see these galls please submit a photo of the galls on the tree as well as the location of the tree to the UAF Cooperative Extension Service pest reporter to help us map the occurrence of this insect in Alaska: https://pestreporter.alaska.edu/

Anotado en 10 de agosto de 2021 a las 07:49 PM por awenninger awenninger | 0 comentarios | Deja un comentario

13 de agosto de 2021

Rusty tussock moth caterpillars - Orgyia antiqua

Voracious rusty tussock moth caterpillars munch berry bushes and dwarf birch—sometimes taking over camp sites! Take caution before handling, their hairs cause a rash. Report observations to http://iNaturalist.org.

More information available here: https://bit.ly/3m5fpkv

Photo credit: Anne Beaulaurier

Anotado en 13 de agosto de 2021 a las 03:53 PM por awenninger awenninger | 0 comentarios | Deja un comentario

06 de agosto de 2021

Viburnum leaf and stem rust, Puccinia linkii

Tart-but-delectable highbush-cranberries (Viburnum edule) are harvested for jams, ketchups & other foraged-products. A rust fungus is wreaking localized harvest havoc from Fairbanks to Seward to SE AK after abundant rain. More information available here: https://bit.ly/2Vf4xp8

Anotado en 06 de agosto de 2021 a las 09:57 PM por awenninger awenninger | 0 comentarios | Deja un comentario

19 de agosto de 2021

Western Blackheaded Budworm Outbreak in Southeast AK

Want to learn more about the western blackheaded budworm outbreak occurring in SE Alaska? Check out our website for info including a map of the damage and reports from a historic outbreak in the 1950s: https://bit.ly/3lZGfug

Anotado en 19 de agosto de 2021 a las 09:07 PM por awenninger awenninger | 0 comentarios | Deja un comentario

11 de agosto de 2021

Birch Leafminers - Leafmining Sawflies

Has fall come early? It might seem as though the birch trees are already turning shades of autumnal brown. Surprisingly, it’s not the changing seasons—the browning leaves are due to birch leafminer feeding! https://bit.ly/2VL2jxV

Anotado en 11 de agosto de 2021 a las 07:26 PM por awenninger awenninger | 0 comentarios | Deja un comentario

12 de agosto de 2021

Western Redcedar Health in Southeast Alaska

AlaskaForestHealth is interested in YOUR observations of western redcedar health in SE Alaska, where it grows as far north as Kake. Healthy trees? Freshly killed red tops? Sparse foliage or dying branches? Contribute through iNaturalist!

Link to Western Redcedar Dieback Map Project: https://bit.ly/3s8G94r

Anotado en 12 de agosto de 2021 a las 04:39 PM por awenninger awenninger | 0 comentarios | Deja un comentario

27 de agosto de 2021

Aspen running canker causal agent identified

Learn how #ForestPathology experts at #AlaskaForestHealth @UNL_PlantPath @ArcticBiology figured out that a newly discovered fungus is the cause of the tree disease aspen running canker in Alaska. Read it here: https://bit.ly/3jazIuG

Anotado en 27 de agosto de 2021 a las 04:29 PM por awenninger awenninger | 0 comentarios | Deja un comentario