Gypsy moth populations shift in Wisconsin

MADISON, Wis. — Gypsy moth populations have shifted across Wisconsin this year, with increases in the north and central parts of the state and decreases in the south.

The changes were reported this week by the Department of Agriculture, Trade and Consumer Protection.

The department says about 25,000 traps were placed in western and central Wisconsin this year to monitor the location, spread and population of the insect.

Melody Walker, who is in charge of monitoring pests for the state, says the spread of the moth westward was successfully limited. Wisconsin is one of 11 states participating in a national program designed to slow the westward expansion of the moth.

The gypsy moth feeds on many species of trees and shrubs and has the potential to cause heavy defoliation.