Invasive Plants & Insects in Forests

Asian longhorned beetle adult, photo by Donald Duerr, USDA Forest Service, Bugwood.org
Survey Your Pool Filters for Asian Longhorned Beetle
Keep an eye out for invasive insects this summer.
Check your pool filters for invasive insects this summer. Learn More
ash tree with blonding from emerald ash borer
5 Resources for Emerald Ash Borer Awareness Week 2023
Keep an eye out for EAB, from May 22—28 and beyond.
Keep an eye out for EAB, from May 22—28 and beyond. Learn More
National Invasive Species Awareness Week logo
7 Ways to Celebrate National Invasive Species Awareness Week
Keep an eye out for invasive species from February 28 – March 4, 2022.
National Invasive Species Awareness Week (NISAW) is being celebrated February 28 – March 4, 2022. Learn More
Emerald ash borer insect
5 Resources for Emerald Ash Borer Awareness Week
Keep an eye out for EAB, from May 23—29 and beyond.
Keep an eye out for EAB, from May 23—29 and beyond. Learn More
Hemlock Woolly Adelgid
What’s Wrong with My Hemlock Tree?
Check your hemlock trees for invasive insects.
Check your hemlock trees for invasive insects. Learn More
hemlock woolly adelgid
5 Ways to Celebrate National Invasive Species Awareness Week
Keep an eye out for invasive species, from February 22—26 and beyond.
Keep an eye out for invasive species, from February 22—26 and beyond. Learn More
Application Period Opens for 2021 NH Invasives Academy - Now Online
UNH Cooperative Extension will host a new 5-week online version of the NH Invasives Academy workshop between March 4 and April 8, 2021.
UNH Cooperative Extension will host a new 5-week online version of the NH Invasives Academy workshop between March 4 and April 8, 2021. Learn More
dying fir tree
Spruce/Fir Issues of the North (Webinar)
A part of the New Hampshire Forest Health Webinar Series
A part of the New Hampshire Forest Health Webinar Series Learn More
spotted lanternfly
Emerging Pests (Webinar)
A part of the New Hampshire Forest Health Webinar Series
A part of the New Hampshire Forest Health Webinar Series Learn More
Stem and Root Rot
Root and Stem Rots (Webinar)
A part of the New Hampshire Forest Health Webinar Series
A part of the New Hampshire Forest Health Webinar Series Learn More