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多纹豹蠹蛾在福建省一年一代,以幼虫在树干基部蛀道中越冬,幼虫19龄,历期313—321d,每树大多仅有一条幼虫和一个排粪孔;6月中旬为羽化高峰期,成虫具趋光性;7月上、中旬为孵化盛期。受害植物已知 20种,以木麻黄为主,被害株率最高达82％。可选用湿地松、柠檬桉为木麻黄的混交树种;杜绝带虫苗木造林;幼虫蛀入期对排粪孔喷注白僵菌,害虫死亡率86.7—98.3％,幼虫未蛀入时对嫩枝小喷溴菊酯或氧化乐果液剂,均可收到良好的防治效果。
In the Fujian Province for a year, the larvae overwinter in the trunk of the tree trunk. The larvae are 19 years old and have a history of 313-321 days. Most trees have only one larva and one fecal excrement per tree. The mid-June is the peak of eclosion Period, adults with phototropism; July, mid-incubation period. 20 kinds of plants known to victims of Casuarina mainly victimization rate of up to 82%. Pine and eucalyptus can be used as mixed species of Casuarina equisetifolia; the afforestation with insects and seedlings should be avoided; the Beauveria bassiana is sprayed on the defecation hole at larvae inoculation, the mortality rate of pests is 86.7-98.3% Small spray delphothrite or omethoate, can receive good control effect.