![]() This means that for armyworm-infested grass that has been established for four to five weeks or more, it is unlikely that the worms would have come from eggs laid at the production field. ![]() ![]() In the warm weather of summer, the cycle takes about four weeks to complete with 14 to 17 days spent as caterpillars feeding on the grass. A week or so later, the new adult moth emerges to start the cycle again. These eggs hatch after a few days and the caterpillars feed and grow for two to three weeks before pupating. This process takes several generations of moths, which is why the worms usually appear in late summer and early fall in northern parts of the state.Īn armyworm moth can lay eggs in batches of a few dozen to several hundred, allowing populations to grow rapidly throughout the summer. Instead, moths move north from Florida each spring and summer on weather fronts, spreading from south to north until the entire state is reinfested. ![]() Even in relatively mild years, the moths, or adults, do not survive our winters. The fall armyworm is the caterpillar of a moth that arrives in Georgia almost every year. ![]()
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