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本文通过田间调查豇豆生产期与结荚期主要虫害 (斑潜蝇、豆荚螟、豆蚜、蝽象 )的发生情况 ,发现不同的物理措施在控制病虫害方面的作用存在差异 ;同时 ,结合对天敌的影响、产量、质量、经济效益综合评价物理防治在控制豇豆病虫害的作用。结果表明 ,防虫网对斑潜蝇控制效果达 5 9.19% ,对豆荚螟、豆蚜、蝽象高达 10 0 % ;黄板区与灯防区在降低成虫虫口基数上起到良好的效果 ,平均每天黄板诱虫 5 8.2头 块 ,杀虫灯在虫害发生期间诱虫重量达15 .4g d ,以每克含虫 5～ 2 0头计 ,达 76～ 30 8头 d ,最高峰 5月中旬时能达 6 2 5～ 2 5 0 0头 d ,有效减少田间害虫虫口基数。从综合经济效益的角度相比 ,防虫网处理区 (4 177.2元 ) >黄板区 (35 392 .5元 ) >灯防区 (32 832 .0元 ) >常规施药区 (2 5 75 8.0元 )。
In this paper, the main pests (leafminer, pod borer, soybean aphid and stinkbug) in cowpea during the production and podding stages were investigated in the field. The results showed that there were differences in the roles of different physical measures in controlling pests and diseases. In the meantime, The impact of yield, quality, economic evaluation of a comprehensive evaluation of physical control in the control of cowpea pests and diseases. The results showed that the control effect of the insect net on leafminers was 5 9.19% and the number of stinkbugs was about 100% to the pod borer, the bean aphid and the stink bug. The yellow board area and the lamp-light area played a good role in reducing the population number of adult insects, Yellow board trap 5 8.2 head piece, insecticidal lamp Attract weight during the pest infestation of 15 .4g d, per gram of insects 5 to 20 head count, up to 76 to 30 8 d, the highest peak in mid-May When can reach 6250 ~ 2500 head d, effectively reduce the number of insect pests in the field base. From the perspective of comprehensive economic efficiency, the insect-resistant net treatment area (4 177.2 yuan), the yellow plate area (35 392.5 yuan), the lamp-defensive area (32 832.0 yuan), the conventional application area (2 5 75 8.0 yuan ).