Field efficacy of selected bio-agent and insecticide against shoot and fruit borer, Earias vittella (Noctuidae: Lepidoptera) on okra
G Narasa Reddy, Sivappa, KT Thara and Deepak
Earias vittella is the major pest of okra. It has been reported to cause 24.6 to 26.0 per cent damage to okra shoots and 40 to 100 per cent loss to fruits. In recent years, increased interest has been shown towards biological control following unsatisfactory results with the application of conventional insecticides. Hence, investigations were carried out to assess the potential of Trichogramma parasitoids and insecticide control against okra fruit borers, the results suggested that significant differences were observed between the treatments. The fruit infestation ranged from 5.47 to 15.57 per cent, highest fruit infestation was recorded in control (15.57 %), which was significantly more over rest of the treatments, followed by T. chilonis (10.58 %), chlorantraniliprole treatment (8.58 %). However, minimum fruit infestation was recorded in T. chilonis + chlorantraniliprole treatment (5.47 %).
G Narasa Reddy, Sivappa, KT Thara, Deepak. Field efficacy of selected bio-agent and insecticide against shoot and fruit borer, Earias vittella (Noctuidae: Lepidoptera) on okra. J Entomol Zool Stud 2019;7(3):380-383.