The stable fly’s proboscis is pointed
and built for stabbing and
travel along rivers, roadways, and open areas. From late June to August, warm
humid winds from the southwest bring occasional invasions of stable flies.
What can you do?
The flies seem to prefer being close to the ground, so cover your legs and
ankles. Insect repellants are ineffective against stable flies. To tolerate an
invasion of stable flies, avoid the Lake Superior coast during their migration
and consider taking a hike on one of the Lakeshore’s inland trails, away from
roads or water.
The fly situation often lasts a few days or until a cool breeze from the north
begins to blow.