Invasive Plants & Insects in Forests

Pesticide Licensing Can Help Conservation Commissions Control Invasive Plants
Invasive species are an increasingly common issue in New Hampshire forests, and a growing number of municipalities and private landowners are struggli... Learn More
a woman helping to remove glossy buckthorn--an invasive plant
7 Ways You Can Help Prevent the Spread of Invasives
National Invasive Species Awareness Week is being celebrated February 25 to March 3, 2019. Invasive species come in many forms—plants, animals, pathog... Learn More
three forest pest specialists look at blonding of ash trees
Winter is a Good Time to Look for Pests
Now is a great time of year to look for signs of forest pests like emerald ash borer, Asian longhorned beetle and hemlock woolly adelgid in your trees... Learn More
a stack of firewood
A Letter to Towns Describing the Elimination of New Hampshire Emerald Ash Borer Quarantine and Regulations
In a letter sent to all New Hampshire towns, state entomologist Piera Siegert described how the state of New Hampshire has changed its focus to preven... Learn More
Two people are looking at a plant. They are seated with others in a classroom. On the right, a woman in a gray shirt looks at and identifies the plant by holding a leaf. On the left, a man with a white beard and a blue shirt holds the plant and is looking at the woman and listening to her.
Getting a Hold on Invasives Plants
Inaugural New Hampshire Invasives Academy creates new network
Inaugural New Hampshire Invasives Academy creates new network Learn More
emerald ash borer adult on leaf; photo credit: NW Siegert, U.S. Forest Service
Rules for Moving Ash Tree Products Adjusted
The state of New Hampshire has announced that new parameters for transporting ash logs and products made from ash are now in effect. The change comes ... Learn More
a New Hampshire field with forest in background
NH Association of Conservation Districts Annual Meeting
Specialists from UNH Cooperative Extension to Present on Forestry & Agriculture Topics
Specialists from UNH Cooperative Extension to Present on Forestry & Agriculture Topics Learn More
current map of known emerald ash borer infested areas in New Hampshire
Changes to the in-state rules on transportation of hardwood firewood, ash logs, ash lumber, ash chips, and other emerald ash borer-regulated articles
EAB continues to be a high-risk pest that will change the face of New Hampshire’s forests
EAB continues to be a high-risk pest that will change the face of New Hampshire’s forests Learn More
partial view of the risk map for emerald ash borer in New Hampshire
Public Comment Period: Proposed Elimination of the New Hampshire Emerald Ash Borer Quarantine
EAB found in Carroll and Grafton Counties
EAB found in Carroll and Grafton Counties Learn More
bundles of camp firewood for sale along a road; photo by Liz Graves, Mount Desert Islander
Exterior Firewood Quarantine Revised
from Piera Siegert, state entomologist, N.H. Dept. of Agriculture, Markets & Food
from Piera Siegert, state entomologist, N.H. Dept. of Agriculture, Markets & Food Learn More