Forest insect pests of Papua New Guinea. 4. Defoliators of Pinus (pines) in the highlands.
The insect defoliators of Pinus patula in Papua New Guinea are discussed. The most important species include Lymantria ninayi and Alcis papuensis. Outbreaks of these 2 species have occurred and viruses are thought to be of major importance in limiting their populations.