Native to Mesoamerica, invasive in our area: e US to CA (ME-FL to SD-CA) but rarely found in the north, the northern limits of the range fluctuate markedly depending on winter severity; migrates northward during spring and summer(2)(3)
hosts: primarily Brassicaceae (horseradish, cabbage, cauliflower, collards, mustard, Brussels sprouts, turnip, kohlrabi, radish); may also attack tomato, potato, eggplant, okra, bean, asparagus, beet, weeds, fruit trees and field crops(4)
Eggs look like white barrels with two black hoops around; adults overwinter. The life cycle takes 50-80 days.(4)
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