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油桐尺蠖(Buzura suppressaria benescripta Prout)在永春县为害柑桔过去仅零星发生,近几年来永春县部分柑园相继暴发。据1989—1990年在永春县柑桔良种场及其邻近桃星村果园调查,受害较重的柑园受害株率达75％,一株柑桔树多的发现120头幼虫,虫口密度6—80头/株。油桐尺蠖是杂食性食叶害虫,幼虫取食叶片,大发生时整片柑桔园的叶片被吃光仅留主脉,形成秃枝,严重影响柑桔(尤其是幼龄树)生长。一、油桐尺蠖的生活史。
Buzura suppressaria benescripta Prout in Yongchun County, citrus damage in the past only sporadic occurrence, in recent years Yongchun County part of the orange garden outbreaks. According to the survey of citrus varieties in Yongchun County and its neighboring peach orchard in 1989-1990, 75% of the affected citrus orchards were harmed, and 120 larvae were found in a citrus tree. The population density of 6- 80 heads / strain. Tung oil palm is a omnivorous leaf insect pests, larvae feeding leaves, large pieces of citrus orchard leaves are eaten only leaving the main vein, the formation of bald branches, seriously affecting the growth of citrus (especially young trees). First, the tung tree life history.