Research Briefs

Biochemistry, Genetics and Molecular Biology · Molecular Biology

Insect Resistance and Genetics

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Abstract editorial illustration accompanying the article: Engineered gut bacteria killed all tested caterpillars in a lab study
Biology

Engineered gut bacteria killed all tested caterpillars in a lab study

A genetically modified gut bacterium killed up to 100% of Helicoverpa armigera caterpillars in laboratory tests, and all larvae exposed to treated leaves died within eight days. The bacterium also colonized caterpillar guts and tomato leaves, but its persistence, spread and safety in field conditions have not been tested.

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Abstract editorial illustration accompanying the article: Endophytic fungi may help curb fall armyworm without relying on insecticides
Biology

Endophytic fungi may help curb fall armyworm without relying on insecticides

Fall armyworm is a major crop pest, and insecticide use is increasingly constrained by resistance and side effects. This review synthesizes evidence that endophytic fungi—fungi that live inside plants—can colonize plant tissues and reduce fall armyworm performance. It also highlights limited field testing and a lack of data on effects on beneficial insects.

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