Efficacy of some insecticides against hopper complex on mango (Mangifera indica Linn).
Kumar D., Roy C. S., Yazdani S. S., Hameed S. F., Khan Z. R.
Author Affiliation: Dep. Entomology, Rajendra Agric. Univ., Bihar Campus, Tirhut College of Agric., Dholi, Muzaffarpur, 843?121, India.
Pesticides 19 : 42-43
Abstract : The effectiveness of demeton-S-methyl, monocrotophos, carbaryl, malathion, fenitrothion, endosulfan and dimethoate (all at 0.05%) against the cicadellids Amritodus atkinsoni and Idioscopus clypealis on mango was evaluated in laboratory and field studies in Bihar, India, in 1981. In the laboratory, demeton-S-methyl caused rapid knockdown, followed by monocrotophos and carbaryl. In the field trial, 8 litres of each insecticide were sprayed on 10-year-old mango trees at the first emergence of new flushes and 21 days later. Demeton-S-methyl and monocrotophos were the most effective. Their residual toxicity lasted for 2 weeks after spraying.