Vol. 11, Special Issue 8 (2022)

Author(s):
Deeksha Sharma, Divender Gupta and Archana Sharma

Abstract:
The present study was carried out to evaluate the bioefficacy of insecticides and biopesticides against fruit flies (Bactrocera spp) infesting Tomato (Solanum lycopersicum L.) was studied in Department of Entomology at Dr. YS Parmar University of Horticulture and Forestry Nauni, Solan 173230 Himachal Pradesh, India. Results revealed lambda cyhalothrin (0.008%) as the most effective insecticide with infestation of 18.88 and 19.75 percent followed by the same insecticide at lower concentration (0.004%) where fruit fly infestation recorded was 20.49 and 22.00 percent and spinosad (0.004%) with infestation of 22.53 and 24.66 percent during 2014 and 2015 respectively. None of the treatments showed any phytotoxicity symptoms on tomato foliage and fruits. Azadirachtin at higher concentration (0.02%) with a fruit infestation of 30.56 and 31.75 percent was superior over Malathion (0.1 and 0.2%) concentration whereas, the least effective treatment was B. bassiana (1.0%) with 49.75 and 52.96 percent fruit infestation during 2014 and 2015, respectively.