摘要
在深圳连续释放椰心叶甲啮小蜂防治椰心叶甲,结果表明:放蜂45d后,其中3个放蜂点的蛹寄生率分别为72.00%、92.78%和89.44%,椰心叶甲啮小蜂已在当地建立了一定的种群;180d后,各放蜂点的椰心叶甲虫口密度分别由87.4、78.4和133.0头/株(包含成虫、蛹和幼虫)下降到5.6、23.6和3.0头/株,此时椰心叶甲的种群密度不足以对椰树或其他棕榈植物造成严重危害。说明在城市内利用寄生蜂控制椰心叶甲是可行的。
Control of the coconut leaf beetle, Brontispa longissima （Gestro）, was evaluated by releasing Tetrastichus brontispae Ferriere in Shenzhen, China, for 180 d. The parasitism rates of the beetle pupae in three releasing areas were 72%, 92.78% and 89.44%, respectively, 45 d later after releasing of T. brontispae. The number of the coconut leaf beetle per tree in the three releasing areas decreased from 87.4 to 5.6, 78.4 to 23.6 and 133 to 3, respectively, 180 d later. The results show that it is practical to control coconut leaf beetle by releasing T. brontispae in urban areas.
出处
《中国生物防治》
CSCD
北大核心
2007年第4期306-309,共4页
Chinese Journal of Biological Control
基金
农业部"948"项目(2005-Z48)
中国热带农业科学院科技基金项目(RKY0535)
关键词
椰心叶甲
啮小蜂
释放
生物防治
Brontispa longissima
Tetrastichus brontispae
release
biological control
