Taking Action Against Hemlock Wooly Adelgid (HWA)
Concerned about your hemlocks and want to protect them from HWA?
The process is simple—sign up, opt in, and we’ll handle the treatment.
Sign Up for our Free Detection Survey
A free detection survey is the first step to protecting your hemlock trees from the devastating impacts of HWA. During this site visit, our experienced team will examine your hemlock trees for signs of infestation. These surveys are conducted from late fall through early spring. If HWA is found on your property, our team can provide guidance on next steps, including treatment options, which may be available at no cost through grant funding.
To schedule a free survey, simply fill out and return our permission form and we will add you to our work list. Your presence is not required but you are always welcome to walk along with us.
I have HWA on my property - What now?
If HWA is found on your property our team can provide guidance on next steps. Opt-in treatment may be available to you at no cost through our grant funding. If grant funding is not an option, we also provide further guidance to landowners interested in treating their own trees or hiring a private arborist.
Our team treats hemlocks with a systemic pesticide, imidacloprid, that is either injected into large trees or sprayed onto the trunk of smaller trees. These methods limit the pesticide to the direct vicinity of the tree and minimize impacts on the environment. It is the same chemical used in dog flea and tick medications. This treatment eliminates current infestations and protects the tree from reinfestation for 4-7 years.