thistle caterpillar (Vanessa cardui)
Lepidopteran pests of soybean—such as the painted lady (Vanessa cardui, also known as thistle caterpillar in its larval form), shown here—are growing in importance in the U.S., and a pair of articles in the Journal of Integrated Pest Management provides updated guidance on biology, distribution, and management options for five leading caterpillar pests of soybean. (Photo by Erin Hodgson)