How it started ⏩ How it ended

A weeping polypore (Pseudoinonotus dryadeus) has totally destroyed the base of a 1-m-diameter red oak (Quercus rubra) in the Amance Arboretum.

#ForestHealth
#TreeHealth
#ForestPathology

#WhitePineBlisterRust (Cronartium ribicola) on limber pine (Pinus flexilis) in the Amance Arboretum

#ForestHealth
#TreeHealth
#ForestPathology

Forest Pathology field trip in the Amance Arboretum with Master students
#DothistromaNeedleBlight
#DiplodiaShootBlight
#ForestHealth
#TreeHealth
#ForestPathology

Every seedling placed in the ground supports long-term forest resilience, protects watersheds, strengthens wildlife habitat, and helps restore landscapes impacted by wildfire and other disturbances.

#Soquel #CALFIRE #ForestHealth

🚨 Funding Alert
Tribal Forestry programs – this funding could support your next project!
🗓 Deadline: April 22, 2026 (11:59 PM EST)
📌 Apply through Grants.gov (SAM registration required)
#TribalForestry #IndigenousStewardship #ForestHealth #WildfireResilience #HealthyForests #ForestRestoration

How to eradicate an invasive forest pest without clear‐cutting The results show that selective cutting applied together with modern remote sensing surveillance methods is an environmentally friendly alternative to the mandatory clear-cutting for PWN control in t...

How to eradicate an invasive forest pest without clear-cutting?

#PineWoodNematode
#PineWiltDisease
#ForestHealth
#ForestPathology
#TreeHealth

besjournals.onlinelibrary.wiley.com/doi/10.1111/...

#PineWoodNematode
#PineWiltDisease
#ForestHealth
#ForestPathology

Interesting online seminar, on 19th March 2026 at 15:00 (CET) two talks on ‘Forest Health in the face of climate, pests and pathogens’. Part of the TTT seminars: Third Thursday of the month at three (CET)
#ForestManagement #ForestHealth #ClimateResilience #Forestpests

🚁🌲 #Drones are changing how we see forest health. With Genome BC support, researchers use LiDAR, multispectral & thermal sensors to spot climate stress in trees in minutes—not decades—helping build resilient forests for the future.

#GenomicsSavesTrees #ForestHealth #InnovationInForestry

Introduction of the pine wood nematode in France: what can research do? - European Institute of Planted Forest - IEFC

Introduction of the #PineWoodNematode in France: what can research do?
#ForestHealth
#TreeHealth
#ForestPathology

www.plantedforests.org/introduction...

Today, an article in @lemonde.fr, to which we contributed, revisits this @science.org article on genomic selection of chestnut trees for disease resistance.

#GenomicSelection
#ForestHealth
#TreeHealth
#ForestPathology

www.lemonde.fr/sciences/art...

Forest Supervisor outlines fuels targets, Fredonia trail progress and recreation plans Lassen National Forest Supervisor Rick Hobson updated the Board on the agency's chief priorities — safety, fuels and forest-health work — described targets for fuels and timber work, and said the Forest Service will support a 24.5-mile Fredonia trail grant and is preparing public scoping for enhancements to the Gallatin boat ramp.

Lassen National Forest is prioritizing safety while tackling wildfire risks and expanding recreation access, but can they meet their ambitious goals for 2026?

Click to read more!

#LassenCounty #CA #CitizenPortal #ForestHealth #RecreationAccess #WildfireRisk

📰 ☕ Have you read the SMURF - The forest owners' project newsletter yet? Great to see a spotlight on the #OptiForValue project, advancing resilient and high-value forest operations under Forestry Community & Sister Projects 🌳🌲
#CBEJU #ForestManagement #ForestHealth #ClimateResilience #ForestResearch

This is one of the #ForestHealth topics that pushed me toward a career in #ForestPathology. Always a immense pleasure to see progress in restoring this keystone species to Eastern US deciduous forests

##ForestScience #ForestryResearch #Silviculture
#ForestEcology #ForestManagement #ForestSoils #ForestProtection #ForestHealth #TreePhysiology
#Dendrology #ForestGenetics #ClimateChangeForests
#ForestBiodiversity #SustainableForestry #ForestPolicy
#Agroforestry #ForestEngineering #WoodScience

🪵 Spot the Invader! Did You Guess Right? 🌲
Here’s the answer key 👇
#GenomicsSavesTrees #ForestHealth #InvasiveSpecies

Genomic approaches to accelerate American chestnut restoration More than a century after two introduced pathogens killed billions of American chestnut trees, introgression of resistance alleles from Chinese chestnuts has contributed to the recovery of self-sustai...

A step forward in restoring the American #chestnut #tree, Castanea dentata, which was almost wiped out by chestnut #blight, caused by the #invasive #fungus Cryphonectria parasitica, and Phytophthora root rot.

#GenomicSelection #ForestHealth #TreeHealth #ForestPathology

doi.org/10.1126/scie...

🪵 Spot the Invader! Some threats to BC’s forests arrive as cargo stowaways or invisible spores. 🔴 Spongy moth, 🔵 Asian long-horned beetle, 🟢 Sudden oak death. Can you match A, B, C? Comment your guesses!

#GenomicsSavesTrees #ForestHealth #InvasiveSpecies

closeup of a hemlock tree branch with hemlock woolly adelgid cocoons.

If you have hemlock trees, please check them for hemlock woolley adelgid. If you don't have any lower branches, you clip a couple small branches and take a peak. When there is snow, you can try using bionoculars or zoom camera lenses! #HWA #hemlockwoollyadelgid #foresthealth #trees #InvasiveSpecies

Open Space Commission updates: Mill Creek Park Phase 1 moves forward; PEZ soil-health program expands and forest health shows improvement County commissioners approved Mill Creek Park Phase 1 and awarded construction to Ground Pounders; the commission renewed contracts for the PEZ soil-health program (including biochar as an add-on) and received a forest health report showing slowed decline and signs of regeneration in parts of Bear Creek.

Exciting developments are underway as county commissioners greenlight Phase 1 of the Mill Creek Park project, while expanding conservation efforts and revealing promising signs of forest health improvement!

Learn more here

#SanMiguelCounty #CO #ForestHealth #CitizenPortal

Advocates and DNR urge full funding for wildfire resilience account in SB 5,893 hearing Staff said SB 5,893 would transfer Climate Commitment Act proceeds into a dedicated wildfire resiliency account to reach a $125 million per‑biennium target; wildfire responders, private forest owners, and DNR urged full funding, warning cuts could eliminate pass‑through grants and detection systems.

The Senate is considering a critical bill that could divert funds from climate initiatives to bolster wildfire response and forest health, but advocates warn that without full funding, vital services may be cut.

Get the details!

#WA #CommunitySafety #WildfireResilience #ForestHealth

Healthy forests help reduce wildfire risk. 🌲

The Forestry Challenge, backed by CAL FIRE grants, gives students hands-on experience in forest health and wildfire science—building the next generation of forest and fire professionals.

#CALFIRE #WildfirePrevention #ForestHealth

A forested hillside shows tall, closely spaced trees with patches of sunlight filtering through the canopy, while cut branches and logs lie scattered across the ground, suggesting recent forest management or thinning work.

🌲 Mendocino County landowners may be eligible for forest health and wildfire-risk reduction funding. Applications are due Feb. 13.

mendovoice.com/2026/01/fore...

#MendocinoCounty #WildfirePrevention #ForestHealth

Lake County unveils public LiDAR‑derived maps and tools to aid wildfire planning County and CAL FIRE officials demonstrated publicly accessible LiDAR‑derived datasets — including 1‑foot contours, canopy height and ladder‑fuels layers — and described forthcoming tree‑mortality (2026) and fine‑scale vegetation (2027) products designed to improve planning, grant applications and fuel‑reduction prioritization.

Lake County has just unveiled powerful LiDAR-derived geospatial tools that will revolutionize wildfire planning and forest health management!

Click to read more!

#LakeCounty #CA #CommunityPlanning #DataInnovation #LakeCountyWildfire #ForestHealth #CitizenPortal

@MNDNR #ForestHealth Please add diversity to forest health. I dealt with derecho 10 yrs ago. Pressured by neighbors I resisted "cleanup". Downed trees provided new habitat, allowed to reseed, and dormant pollinator plants came to life. Can't say enough about diversified health of a forest. 33 acres.

Premier foyer en France de nématode du pin : organisation de la lutte obligatoire et soutien financier de l’État
#PineWoodNematode
#ForestHealth

agriculture.gouv.fr/premier-foye...

La forêt des Landes menacée par un ver ravageur : « Les incendies, on sait les éteindre, mais le nématode du pin, on ne sait pas vraiment comment l’arrêter » Ce petit ver qui peut tuer des résineux en quelques semaines a été découvert pour la première fois en France sur la commune de Seignosse, début octobre. D’importantes coupes rases vont devoir être réa...

La forêt des Landes menacée par un ver ravageur : « Les incendies, on sait les éteindre, mais le nématode du pin, on ne sait pas vraiment comment l’arrêter »
#PineWoodNematode
#ForestHealth

www.lemonde.fr/planete/arti...

Paradise event spotlights prescribed burns as a tool to restore forest health and reduce wildfire risk At a community 'good fire' festival in Paradise, organizers and speakers urged residents to learn about prescribed burns as a way to make forests healthier and lower the risk of catastrophic wildfires; the event credited funding from the neighbor to neighbor grant and the California Fire Foundation.

Community members in Paradise are discovering the power of prescribed burns to protect their forests and reduce wildfire risks at an enlightening "good fire" festival.

Learn more here

#CA #WildfireResilience #ForestHealth #CitizenPortal

Tree deaths outpace growth two-to-one, speaker says; wildfire blamed, logging defended An unidentified speaker, citing U.S. Forest Service reports, said tree mortality in national forests exceeds growth by two-to-one and attributed much of the loss to wildfire. The speaker said timber harvesting accounts for about 25% of net growth and called logging part of the solution.

Tree deaths in national forests now outnumber new growth by a staggering two-to-one, with wildfires being the main culprit.

Click to read more!

#US #WildfireManagement #ForestHealth #NationalForests #CitizenPortal

Drones with standard cameras reveal hidden forest layers using AI technology Monitoring forest health typically relies on remote sensing tools such as light detection and ranging (LiDAR), radar, and multispectral photography. While radar and LiDAR penetrate canopies to reveal structure, they struggle to provide fine-resolution spectral details needed for vegetation health assessment.

Forests’ secrets revealed! 🌳 Tech like LiDAR & radar see *through* trees, but miss vital color clues to their health. What are forests telling us? ✨ #ForestHealth

Source: phys.org/news/2026-01-drones-stan...