Comparative efficacy of some insecticides against mango shoot gall psylla, Apsylla cistellata Buckton (Psyllidae: Homoptera).
Ajay Kumar, Verma T. D., Divender Gupta
Author Affiliation: Department of Entomology and Apiculture, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan - 172 330, Himachal Pradesh, India.
Journal of Entomological Research 31 : 109-111
Abstract : A study was conducted in Himachal Pradesh, India, in 2002 and 2003 to evaluate some insecticides for the effective control of Apsylla cistellata in mango (cv. Dashehari). Treatments comprised: acephate (0.15%), dimethoate (0.03%), imidacloprid (0.018%), monocrotophos (0.04%), thiamethoxam (0.025%) and a control (water). The results showed that monocrotophos was the most effective insecticide for A. cistellata, recording the lowest mean number of feeding 1st instars per 3 shoots (25.8 and 16.8), mean number of shoot galls per 10 shoots (15.37 and 12.50), mean number of nymphs feeding per 10 galls (2 and 0), for the first and second year, respectively, and the highest average yield (185 kg per tree). The next best insecticide was dimethoate with 49.40 and 23.40 feeding 1st instars per 3 shoots, 20.50 and 14.12 shoot galls per 10 shoots, 4.0 and 3.6 nymphs feeding per 10 galls for the first and second year, respectively, and 181.20 kg average yield per tree.