Small caterpillars scrape the epidermal layer of leaves while advance stages of semilooper defoliate the plants by feeding voraciously. The adults of caterpillars suck the juice from the citrus fruits, if present nearby the field. If population of these caterpillars is found four or more than four per plant, spray dimethoate 30 EC @ 10 ml or emamectin benzoate 5 WG @ 4 g per 10 lit of water.