As fall armyworm continues to threaten food security in Africa, the use of Bt maize offers significant potential to manage the pest. But it will be critical to manage resistance via multi-toxin crop varieties and appropriate use of refuge planting—all in forms accessible to the smallholder farmers that grow nearly all of Africa's maize.
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.
It may be only a matter of time before the Old World bollworm arrives in the U.S. A new guide in the Journal of Integrated Pest Management will help soybean growers and IPM pros be ready when it does.
On smallholder farms using Bt maize in Africa, the combination of reduced field size and multiple pests presents challenges to insecticide resistance management. A new report in the open-access Journal of Integrated Pest Management offers recommendations for best practices.