Late last year, farmers in Kanchanaburi in western Thailand came across a species of caterpillar they hadn’t seen before. Tucked deep in ears of corn, it seemed to be more voracious than the pests they usually encounter. In some instances, the creatures ate each other. It was, entomologists confirmed, a very hungry caterpillar: the fall armyworm. Originating...

Source: Wall Street Journal February 03, 2019 13:30 UTC