1A. P. Agricultural University.
2A. P. Agricultural University.
3Principal Agricultural College and Head Department of Entomology
* Paper presented at the All India Seminar on Sugarcane Scale insect held at Nidadavole on 12th and 13th November, 1976.
Disulfoton was tried at three different levesls of application in large areas of sugarcane in village Velagandurru in West Godavari district for the control of sugarcane scale Melanaspis glomerata G during 1975–76. The results obtained conclusively show that soil application of 5 per cent disulfoton granules at 20 Kg (1 Kg ai.) pea acre in a single dose in July or August when the crop is about 6 to 7 months old, is most effective in reducing the scale insect with resultant increase in yield of 3.16 t/a (7.80 t/ha) over the plots which received only 10 Kg granules per acre, and 17.6 t/a (43.4 t/ha) over the mean cane yield recorded in that area.
