A suitable management technique for the control of mango leaf hoppers (Idioscopus spp.).
Barman J. C., Alam M. A., Uddin M. Z., Islam M. S., Uddin M. S.
Author Affiliation: Lac Research Station, Bangladesh Agricultural Research Institute (BARI), Chapai Nawabgonj-6300, Bangladesh.
Journal of Subtropical Agricultural Research and Development 5 : 251-255
Abstract : An experiment was conducted in Chapai Nawabgonj, Bangladesh, during mango crop season in 2006 on mango cv. Fazly to obtain an effective management technique for the control of mango leaf hoppers (MLH; Idioscopus spp.). The treatments comprised different application schedules and a number of sprays with Cymbush 10 EC (cypermethrin) at 1.0 ml/litre of water mixed with Dithane M-45 [mancozeb] at 2.0 g/litre of water as a full cover spray on mango trees associated with some cultural operations in some cases. Approximately 80.6-96.5% reduction of the adult MLH populations over the untreated control up to 30 days of every insecticide spray application and 84.5-94.8% reduction of MLH nymphal populations were observed. Among all the treatments, the two insecticidal spray (first within 10 days of flowering and second after 30 days of the first spray) in mango trees resulted in the maximum net profit (Tk. 439.25/tree) and the highest benefit cost ratio (1.78), with 3.49% avoidable crop loss.