Gypsy Moth

The small larvae of the gypsy moth take to the air and are carried by the wind. The larvae spin silken threads and hang from them, waiting for the wind to blow. The light larvae have long hairs that increase their surface area, which are suitable for being carried aloft. The natural spread is slow, but transportation of the moth has led to isolated gypsy moth populations, with accidental transport of the eggs being noted. According to the United States Department of Agriculture, without intervention, this pest spreads about 13 miles per year. Typically, short distances can be traversed by larva, but there is suspicion that long distance flights are possible. It has been hypothesized that storms carried the larva across Lake Michigan to the western shore, the span of dozens of miles.intervention, this pest spreads about 13 miles per year.[11] Typically, short distances can be traversed by larva, but there is suspicion that long distance flights are possible. It has been hypothesized that storms carried the larva across Lake Michigan to the western shore, the span of dozens of miles. From Wikipedia