PubMed · 2026-04-20
Researchers evaluated how quickly fall armyworm — a destructive crop pest — could evolve resistance to broflanilide, a newer insecticide, and whether populations already resistant to older chemicals would also resist it. The study maps cross-resistance relationships to help farmers choose effective treatment combinations before resistance spreads.
Broflanilide was assessed for resistance development risk in fall armyworm populations, with selection experiments quantifying how fast resistance ratios increase under repeated exposure
Cross-resistance patterns were characterized between broflanilide and other insecticide classes (e.g., organophosphates, pyrethroids, diamides), identifying which resistance mechanisms overlap
Resistance management recommendations — including rotation intervals and mixture strategies — were derived from the cross-resistance data to extend broflanilide's effective field lifespan
