The Oriental Armyworm, Mythimna separata (Wlk.) Distribution, biology and control: a literature review.Miscellaneous Report No 59H CSharmaauthorJ CDaviesauthorThe or~entaal rmyworm, Mythimna separata IWlk.1, IS one of the serious cereal pests in the Asran and AustralIan conlrnents It IS widely distrrbuted bctween 45 N and 45's lat~tude and 60~Etn beyond 170' W lony~tude,c overing 27 countr~es/coloniatl erritnr~es/~slands from humid tropical to temperate regions. Serious outbreaks have occurred In India, Ch~na, Japan, Australla, New Zcaland. FIII, Bangladesh, and Tha~lancl.V ar~ousth eories are quoted to cxpla~nth e outbreaks. Exact y ~ e l d10 % ~stimatcsa re not ~va~lablbeu, t heavy losses have beer1 experienced In India, Ch~naJ, apan, Australla, New Zealand, and Barigladesh, Insect development varies accord~ngto tempcratlrre and tiumid~ty.P opulat~onsh ave been mon~toredcl slng light traps, molassrs.ba~tcd traps, ariri dry sorghum leaves. Larval brhav~our varles cons~derably In thc sol~tary and yreyarlous phases. 111 China and Japan migration s reported Forty-two parasrtes, 16 predators, and 12 pathogens have been reported from the field. Male and female pheromones have beer1 analysed. Mythirnna separ(3t.a feeds on 33 plant species belonq~ngto 8 fam~lrcs.D ~fferent~vaalr ietal suscept~b~litoyc curs Iri wheat, rlcc, malze, and sorghum. A large number of chem~calsg ~vee flect~vec ontrol.Fall ArmywormAgriculture-Farming, Production, Technology, Economics1983Overseas Development AdministrationMonograph