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Cornell University

New York State Hemlock Initiative

Keeping the legacy alive

Report HWA Finding

Reporting your HWA findings helps us manage HWA in New York’s forests by providing locations of local infestations for treatment and allow us to understand where new infestations may end up. For surveying tips and HWA identification information, you can use our Hemlock and HWA ID Guide.

There are three reporting options available for HWA findings listed below. Pick the one method that works for you to report your HWA finding. 

Reporting Methods

1. Use the iMapInvasives mobile app:

We encourage you to use iMapInvasives to record HWA findings in New York. This invasive species mapping tool is used by NYS DEC to plan management and prioritize HWA treatments in New York. Your contributions to the state invasives map improve our ability to conserve and protect hemlock resources.

To use iMapInvasives, please set up a free account with a username and download the app onto your mobile device. Once you’re signed up, you can use iMap to report locations of any invasive species in New York. You can select “Species Detected” for positive HWA sightings and “Species Not Detected” when you check for HWA but do not find it. For more information, visit the NY iMapInvasiveswebsiteNYiMapInvasives.org

iMapInvasives also has online tutorials and resources to help you use the iMap mobile app and desktop version. You can check out these helpful tools on the NY iMapInvasives website: Training, including this quick setup tutorial playlist.

2. Call NYS DEC Forest Pest Information Line:

Phone Number: 1-866-640-0652

Report HWA Findings

To tell us about hemlock woolly adelgid findings in your area, click here