论文部分内容阅读
玉米螟是影响玉米产量的首要害虫,在一般发生年引起玉米减产7%～10%,大发生年减产20%以上。控制玉米螟的危害成为目前迫切需要解决的问题。目前生产上采用的防治措施主要有赤眼蜂、诱虫灯和白僵菌。诱虫灯是近年来研究出的既经济易行又有较好的防治效果。 1、诱虫灯防治玉米螟的技术玉米螟的越冬虫源主要集中在村屯内或附近的玉米秸秆垛或柴草垛中。经测查表明:在玉米秸秆中越冬的虫源占75%,在柴草垛中占
Corn borer is the most important pest affecting corn production, causing maize to reduce production by 7% -10% annually in general occurrence and annual reduction by 20% or more. To control the damage of corn borer has become an urgent problem to be solved. The current production control measures used mainly Trichogramma, trap insects and Beauveria bassiana. Insect trap lamp is developed in recent years, both economical and good control effect. 1, the technology of trapping lamp to control corn borer Corn borer overwintering insects are mainly concentrated in or near the village of corn stalks or firewood stack. The investigation showed that: the overwintering in corn stalks accounted for 75% of the insects, firewood in the stack accounted for