Efficacy of Ami Verticillium lecanii Against Aphids and Whitefly in Cotton: A Comparative Study
Under Laboratory and Field Conditions
Joshi Chinmay1, Zala Viren1, Pandya Amit1, Zala Harpal1, Zala Vibhakshi1, Zala Prakasha1 and Trivedi Nidhi S2*
1Ami Agri Bioscience Pvt ltd, Ahmedabad, Gujarat, India
2BioAgro Innovators LLP, Gandhinagar, Gujarat, India
*Corresponding Author: Trivedi Nidhi S, BioAgro Innovators LLP, Gandhinagar, Gujarat, India.
Received:
December 11, 2024; Published: January 09, 2025
Abstract
Cotton (Gossypium spp.), a vital crop in India, faces significant yield losses due to pest infestations, especially from whiteflies (Be
misia tabaci) and aphids (Myzus persicae).The extensive use of chemical pesticides caused concerns about their environmental and
human health consequences, leading to a variety of alternative pest-control approaches. Laboratory studies demonstrated that both
filtrate and conidia formulations of V. lecanii were effective in causing mortality in both pests, with the filtrate formulation showing
higher mortality rates. After 3 days, the filtrate caused 39.28% aphid mortality and 33.75% whitefly mortality, while conidia resulted
in 47.39% and 8.75%, respectively. At 6 days, the filtrate treatment resulted in a mortality rate of 72.02% for aphids and 88.75% for
whiteflies. Field trials also demonstrated the potential of V. lecanii, with 39.12% aphid mortality at 5 days after spray (DAS), increas
ing to 52.17% by 10 DAS. Whitefly mortality in the field was 46.11% at 5 DAS, reaching 74.11% by 10 DAS. The control group showed
much lower mortality rates. The results indicate that V. lecanii is a promising biocontrol agent for managing cotton aphids and white
flies, providing a long-term alternative to conventional pesticides.
Keywords:cossypium spp.; Whiteflies; Aphids; Entomopathogenic; Verticillium lecanii
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