The corn earworm is an emerging pest of commercial hemp production throughout the U.S. Boring through stalks and feeding on reproductive structures, this pest presents several management challenges for hemp producers. While integrated pest management strategies for more traditional agricultural crops are established, much work is still needed to develop effective IPM for the corn earworm in hemp.
Lepidopteran pests of soybean 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.
A survey of corn farmers in Iowa shows which insect pests are of most concern and that most are not seeing failures in management methods such as Bt crops. But they do look to IPM and extension agents for guidance in managing insecticide resistance.
With hemp recently legalized for commercial production in the United States, growers are in need of integrated pest management (IPM) guidance. A new profile in the open-access Journal of Integrated Pest Management offers a current synopsis of existing research on insect and arthropod pests of hemp and notes where future research is needed.
Cotton and corn are threatened by growing resistance in the pest Helicoverpa zea (a.k.a. bollworm or corn earworm) to the insecticidal properties of Bt crops. Two researchers identify contributing factors and identify insecticide resistance management practices that could help slow the problem.