Biological Control of Cotton Flower Moth <i>Helicoverpa armigera</i> (Hübner) on Maize
Yuldashev U F.Department of Biology, Faculty of Natural Sciences, Andijan State University, 170100 AndijanUmmatov ADepartment of Biology, Faculty of Natural Sciences, Andijan State University, 170100 AndijanAkhmedov ADepartment of Biology, Faculty of Natural Sciences, Andijan State University, 170100 AndijanSobitova R. S.Department of Biology, Faculty of Natural Sciences, Andijan State University, 170100 Andijan
Indian Journal of Entomologyjournal2026
ABI
Abstract
Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is a polyphagous pest that causes severe yield losses in maize (Zea mays L.). Field and laboratory experiments were conducted in the Andijan region of Uzbekistan (2022-2023) to evaluate the efficacy of biological control agents. The release of Trichogramma pintoi (two applications) combined with Bracon hebetor (one release, 1:10 ratio) suppressed H. armigera populations by 45-50% in maize. Pheromone traps were used to determine the peak oviposition periods, enabling timely parasitoid release. The integration of egg and larval parasitoids significantly reduced pest incidence, demonstrating a practical and eco-friendly biological control approach for maize protection.
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