Host Plants and Infestation of Casuarina Moth Lymantria xylina (Lepidoptera: Lymantriidae) in Taiwan
摘要
The casuarina moth Lymantria xylina is a significant pest of casuarina plantations in Taiwan. Outbreaks of L. xylina in Taiwan were recorded in 1928, 1935, 1983 and 1984. Based on our field survey in 1994 and 1995, a total of 63 species of plants, belonging to 29 families, were recorded to be fed on by Lymantria xylina in Taiwan. All 63 species of host plants arc hardwoods including I fruit trees. Outbreaks of L. xylina in casuarina plantations of Syhhu and Taichung Harbor and defoliation of fruit trees by L. xylina in Changhwa County from May to June of 1995 are reported here. This is the tie-at record of L. xylina damaging fruit trees in Taiwan. The implications of the moth-plant relationship and current outbreaks on silviculture and forest management are discussed.