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本試驗是1962年結合生产进行的。結果表明,粮堆中拌合百万分之5的林丹粉剂,以全部拌合防治效果最好;分层或表层拌合的,防治效果较差。无論那种拌合方式都可以有效地防治麦蛾;在原始害虫不多的情况下,对米象、长角谷盜和谷蠹也有良好防治效果,但对防治鋸谷盜和米虱,效果不明显。用百万分之5的林丹粉剂拌合小麦,加工后,林丹的残留量在机制粉中为百万分之1.1—2.5,石磨制粉中为百万分之1.7—3.9,麸皮中为百万分之4.8—10.4。表层拌合的小麦加工成面粉后,为百万分之0.3,麸皮中为百万分之1.2。全部拌合的稻谷加工后,大米及米糠中分別为百万分之0.57—1.0和4.6—12.0,分层拌合的稻谷加工品中則分別为百万分之0.42和2.0。全部拌合的玉米,加工成玉米粉后为百万分之1.9—3.7。上述拌合浓度,对种子发芽率没有影响。
This test was conducted in 1962 in conjunction with production. The results showed that 5% Linden powder was mixed in the grain heap to prevent and treat all the mixture with the best effect. When the layer or the surface layer was mixed, the control effect was poor. Regardless of the kind of mixing methods can effectively control the wheat moth; in the case of primitive pests is not much, on the rice, long-angle Valley Pi and Valley beetle also have good control effect, but the prevention and control Saw Valley and rice lice, the effect Not obvious. With 5 parts per million lindane powder wheat, processing, lindane residues in the mechanical flour in the 1.1-2.5 parts per million, stone flour in the 1.7-3.9 parts per million, in the bran 4.8-10.4 parts per million. The surface-blended wheat is 0.3 parts per million after processing into flour and 1.2 parts per million in bran. The total mix of paddy processed rice and rice bran were 0.57-1.0 and 4.6-12.0 parts per million, respectively, while the layered processed rice processed products were 0.42 and 2.0 parts per million respectively. All mixed corn, processed into corn flour 1.9-3.7 parts per million. The above mixing concentration has no effect on the seed germination rate.