Outbreaks of pine defoliator, (Dendrolimus punctatus Walker) in pine plantations in Vietnam

by Dao Xuan Truong (Ministry of Forestry, Hanoi (Viet Nam). Forest Protection Dept.), International Union of Forestry Research Organizations, Vienna (Austria) eng, IUFRO Workshop on Pests and Diseases of Forest Plantations eng 5-11 Jun 1988 Bangkok (Thailand), Chaweewan Hutacharern (ed.), MacDicken, K.G. (ed.), Ivory, M.H. (ed.), Nair, K.S.S. (ed.), Royal Forest Dept., Bangkok (Thailand) eng, FAO, Bangkok (Thailand). Regional Office for Asia and the Pacific eng
Published 1990