ALERT! Black swallow-wort has been discovered for the first time in ISN's four-county service area, specifically in downtown Kingsley. This is a critical early detection species and we need your help to find other populations so treatment can begin as soon as possible. Swallow-wort is a member of the milkweed family and acts like a "sink" for monarch butterflies. Even when native milkweed species are present, female monarchs will often lay their eggs on the invasive variety. Once the eggs hatch, the caterpillars are unable to feed on the plant and die. Familiarize yourself with what swallow-wort looks like here: Think you may have found some? Please contact ISN at (231)941-0960.
ISN is looking for your help with spearheading management efforts for swallow-wort.
If interested in VOLUNTEERING please contact ISN Communications Specialist Rebecca Koteskey at
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