By Andi Anderson
The Michigan Department of Agriculture and Rural Development (MDARD) has confirmed the detection of invasive hemlock woolly adelgid (HWA) near Torch Lake in western Antrim County. This discovery marks Antrim as the eighth county in Michigan with an active HWA infestation, raising concerns for the state's hemlock trees.
Steve Carlson, MDARD's Pesticide and Plant Pest Management Division Director, emphasized the significance of public awareness in combating invasive species. The new infestation was identified by a vigilant landowner, highlighting the pivotal role of community engagement in early detection and response efforts.
Hemlock woolly adelgids, characterized by their small size and sap-sucking mouthparts, pose a significant threat to hemlock trees. Their feeding weakens needles, shoots, and branches, ultimately leading to tree decline and death within a decade if left untreated.
To aid in identification, individuals are encouraged to inspect hemlock branches for round, white ovisacs near the needle base. MDARD offers resources such as videos and identification guides to assist in distinguishing HWA from similar pests.
The spread of hemlock woolly adelgid is primarily facilitated through human activities, including transportation of infested nursery stock and inadvertent hitchhiking on vehicles or gear. Preventative measures such as avoiding parking under infested trees and purchasing firewood locally are recommended to mitigate further spread.
Suspected infestations can be reported to MDARD via email or phone, or through the Midwest Invasive Species Information Network (MISIN) online reporting tool. Providing accurate location details and photographic evidence aids in confirmation and management efforts.
For more information on hemlock woolly adelgid and other invasive species in Michigan, including prevention strategies, visit Michigan.gov/Invasives. By fostering awareness and proactive reporting, communities can contribute to safeguarding Michigan's natural ecosystems from invasive threats.
Photo Credit: gettyimages-tinnakorn-jorruang
Categories: Michigan, General