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The fall armyworm's life cycle is completed within 30 days during summer, and 60 days during the spring and autumn seasons; during the winter, these caterpillars' life cycle lasts about 80 to 90 days. The number of generations a moth will have in a year varies based on climate, but in her life span a female will typically lay about 1,500 eggs. [6]
On January 28, 2009, the president of Liberia declared a state of emergency to deal with the infestation of army worms in the country. [25] African armyworms marching along a road in Tanzania. December 2009 had an infestation of ten regions of Tanzania. The infested regions include three of the five main grain-producing regions.
[2] [3] They are known as armyworms because the caterpillars move in lines as a massive group, like an army, from field to field, damaging crops. [4] The true armyworm has a distinct migration pattern in which they travel north in the spring and south in the fall to ensure that mating occurs in a favorable environment in the summer. [5]
Identifying Fall Armyworms Adult moths are ash-gray and about 1 ½-inches wide. The front wings are smaller and gray and brown, while the back wings are larger and white with a brown edge.
From Virginia to Ohio to Michigan, armyworms are chomping through grass across the country. Here's how to save yours.
The army cutworm is the immature form of Euxoa auxiliaris. [1] [2] Together with other moths that are locally abundant and that have scales that dislodge from the wings, [3] the adult moth is called a miller moth.
Aug. 26—Army worms are on the march, leaving damaged lawns and plants in their wake, but experts say there are ways to get rid of them. "It's almost the perfect environment, because we have all ...
Armyworms are the caterpillars of some members of two genera: Many Spodoptera including: African armyworm (Spodoptera exempta) (Africa) Fall armyworm (Spodoptera ...