SEASONAL DIVERSITY AND ABUNDANCE OF PREDATORY ARTHROPODS (INSECT PREDATORS AND SPIDERS) IN Bt AND NON-Bt COTTON FIELDS | UTTAR PRADESH JOURNAL OF ZOOLOGY
At farmers' fields in Palem village, Nakrekal mandal, Nalgonda district, Telangana state, India, this study was undertaken to investigate 'Seasonal variety and abundance of predatory arthropods (Insect pests and Spiders) in Bt and non-Bt cotton fields of Nalgonda district, Telangana state, India'. Predatory arthropods (predatory insects and spiders) were collected on Bt and non-Bt cotton plants using a sweep net and hand-picking methods. The Guide on Cotton Pests and Predators by RARS, PJTSAU Warangal, and Literature were used to identify predatory arthropod species. During the study period, nine predatory insects and two spiders on Bt cotton and eleven predatory insects and three spiders on non-Bt cotton were seen, belonging to 12 insect families and three spider families in seven orders. In both Bt and non-Bt cotton fields, seasonal abundance was lower in July 2019, steadily grew from July to November 2019, and then fell from December 2019 to January 2020. During the 2019-2020 cotton season, we detected minor variations in predatory arthropod variety and abundance between non-Bt and Bt cotton. During the 2019-2020 cotton cropping year, we found 2 species of predatory arthropods on Bt cotton fields in July, 6 species in August, 9 species in September, 10 species in October, 11 species in November, 7 species in December, and 9 species in January, and 2 species on non-Bt cotton fields in July, 5 species in August, 10 species in September, 12 species in October, 12 species in November, 9 species in December, and 9 species in January. In comparison to non-Bt cotton fields, we found less species in Bt cotton fields. For the study of predatory arthropod community structure, ecological indicators were produced. Please see the link :- http://mbimph.com/index.php/UPJOZ/article/view/2604