Studies of insect pathogens on mango leaf webber, Orthaga euadrusalis Walker (Lepidoptera: Pyralidae).
Srivastava R. P., Tandon P. L.
Author Affiliation: Central Mango Research Station (IIHR), Lucknow-226006, India.
Entomon 5 : 219-221
Abstract : A survey in 17 districts of Uttar Pradesh, India, in 1978-79 showed that 3 insect pathogens (the bacterium Serratia marcescens and the fungi Aspergillus flavus and Beauveria bassiana) attacked the mango pest Orthaga euadrusalis Wlk. On the basis of pathogenicity tests in the laboratory, it was found that S, marcescens caused 100% mortality of larvae within 5 days; B. bassiana caused 100% mortality in 4 days when the larvae were allowed to crawl over the fungus and in 6 days when they were sprayed; and A. flavus caused 100% mortality within 4-8 days.