Study of the Insect Pest Complex of Rainfed Rice Crop Ecosystem of Manipur Valley, India
The replicated field investigations were made to study the insect pest complex at the Rice Research Farm, College of Agriculture, Central Agricultural University, Imphal during Kharif season of 2010 and 2011. During the study, about 30 insect pest species were recorded to infest Rice in Manipur and of which Asian gall fly, Orseolia oryzae Wood Mason, Yellow stem borer, Scirpophaga incertulas Walker, leaf folder, Cnaphalocrocis medinalis Guenee, caseworm, Nymphula depunctalis, whorl maggot, Hydrellia philippina Ferina, small grasshopper, Oxya chinensis Walker, green leafhopper, Nephotettix virescens, gundhi bug, Leptocorisa acuta T, swarming caterpillar, Spodoptera mauritia and Army worm, Mythimna separata Walker are of the major importance inflicting the crop.