Study on natural enemies of Coleophora dahurica and their effects on the moth
1995
Wang Zhiming | Pi Zhongqing | Hu Yushan (Jilin Academy of Forest Sciences, Changchun (China))
This paper deals with the natural enemies of larch casebearer (Coleophora dahurica) in Jilin of China. It was found that there are 38 species of natural enemies (11 species of parasitoids, 16 species of spiders and 11 species of hunting birds). The total parasitic rate of the larvae and pupae reached 50 in some years. The spiders could effectively destroy casebearer larvae and adults. The birds were important predators in winter and spring seasons. Large number of migratory birds could reduce 80 of larch casebearer population in about 10 days in May. Ways to protect and utilize larch casebearer natural enemies are also discussed
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