Field efficacy of different insecticides for the control of mango leaf-gall midge Procontarinia matteiana Kieffer and Cecconi.
Jhala R. C., Patel K. G., Patel C. B., Shah A. H.
Author Affiliation: Dept. of Entomology, N.M. College of Agriculture, Gujarat Agricultural University, Navsari Campus, Navsari 396450, Gujarat, India.
International Pest Control 32 : 40-41
Abstract : The efficacy of various insecticides against the cecidomyiid Procontarinia matteiana on mango was assessed in field studies in Gujarat, India, in 1987-88. Three sprays of each of 8 insecticides were applied as and when new leaves sprouted, the quantity of spray mixture applied being decided according to the canopy of the individual tree. The effectiveness of the insecticides in descending order was: 0.03% phosphamidon (a mean of 6.3% of leaves were infested), 0.04% monocrotophos (8.9%), 0.03% dimethoate (11.1%), 0.05% quinalphos (11.2%), 0.05% malathion (12.8%), 0.075% endosulfan (13.2%), 0.03% methyl parathion [parathion-methyl] (14.3%), and 0.3% methyl-O-demeton [demeton-O-methyl] (14.6%). All insecticide treatments brought about a significant decrease in the level of infestation compared with that on untreated trees (a mean of 29.7% leaves were infested).