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1.室内实验选用50％虫螨磷(法国进口)和70％防虫磷(国产),容器用33×23cm的白布口袋224个每袋装1Kg小麦,共用小麦224Kg,小麦含水13％。试虫谷象14400头、赤拟谷盗7200头、短角褐皮蠹幼虫3600头。两种药剂分别以8、4、1、0.1 ppm四种浓度处理72小时和96小时结果是8 ppm、4 ppm和1个ppm的虫螨磷杀虫效果都很好;1ppm的防虫磷效果不理想,0.1 ppm的防虫磷几乎没有杀虫效果。处理72小时和处理96
1. In laboratory experiments, 50% insecticidal phosphorus (imported from France) and 70% pest control (domestic) were used. In the container, 224 white cloth pouches of 33 × 23 cm were packed with 1 kg of wheat per bag, sharing 224 kg of wheat and 13% of wheat water. Walled askew 14,400 heads, 7200 red-tarred beetles, 3600 short-horned beetle larvae. The two agents were treated at 8, 4, 1 and 0.1 ppm for 72 hours and 96 hours respectively. The results were 8 ppm. The insecticidal effects of 4 ppm and 1 ppm of mite were good. The 1 ppm pest control effect was not Ideally, 0.1 ppm of pest control is almost insecticidal. 72 hours for treatment and 96 for treatment