【摘要】 选新植蔗田和宿根蔗田释放螟黄赤眼蜂控制甘蔗螟虫 ,以甘蔗被害节为调查指标 ,结果发现 ,螟黄赤眼蜂对黄螟有较好的控制效果 ,而且在倒 6～ 1 9节及全株的被害节率都明显低于对照 ,同时宿根蔗区又好于新植蔗区 ,在宿根蔗区对黄螟的防治效果尤其显著 ,全株的防效达到 2 2 .2 8%。更多还原

【Abstract】 Trichogramma chilonis Ishii were released in fields of neo-planted sugarcane and persisted-root sugarcane in order to control the sugarcane bores .The result showed that,the yellow bore( Argyrophoce schistaceana (Snellen)) was fairly controlled ,the damaged internode rates among the reciprocal sixth-nineteenth internode and the whole plant were obviously lower than that of check .Meanwhile, the damaged internode rate in the field of persisted-root sugarcane was lower than that of neo-planted sugarcane .In persisted-root sugarcane field, the control effect of whole plant was 22.28%.更多还原