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棉油或棉油泥,所作成的油皂或乳剂,已经普遍用以防治棉蚜。它是否也可以用以杀红蜘蛛呢?药效究竟怎样?药效与皂类的成份,有什么相关?使用上应如何掌握?与石灰硫磺合剂作比绞,有无显著差别?都是目前急需明确的问题。因此我们从各处送来作药效测定的样品,选出具有确定成份规格的五种,作了药效比较试验。现在把初步结果,整理出来,以供各棉区在制造油皂及应用
Cotton oil or cotton sludge, made of soap or emulsion, has been commonly used to control cotton aphids. It can also be used to kill the red spider it? What exactly? Efficacy and soap ingredients, what is the relationship? How to use should be mastered? And lime sulfur mixture than the twist, with or without significant differences? Are the current Urgent need of a clear question. Therefore, we sent from all over for the determination of the efficacy of the sample, the selection of a certain composition of the specifications of the five, made a comparative test of efficacy. Now the preliminary results, sorted out for the cotton zone in the manufacture of soap and application