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在植物检疫工作中,经常需要在实验室内处理少量感染害虫的邮寄植物种子。过去大都用溴甲烷、氰酸气、氯化苦、二硫化碳等熏蒸,这些药剂对熏蒸大量种子是方便的,但处理少量种子就不甚方便。因为以上几种药剂除对人有剧毒外,有的还有易燃的危险。为比,我们曾试验了其他几种药剂,其中以氯仿的效果较好。现将结果整理如下。 材料与方法 试验昆虫为米象、锯谷盗、杂拟谷盗、四纹豆象。试验种子为玉米、小麦、花生、眉豆、绿豆、甘蓝、大白菜、胡罗卜等,含水量在14％以下,熏蒸窒温度30—35℃,
In phytosanitary work, it is often necessary to handle small quantities of post-plant seed infected with pests in the laboratory. In the past most of them were fumigated with methyl bromide, cyanic acid, chloropicrin, carbon disulfide and the like. These agents are convenient for fumigating large quantities of seeds, but are not convenient for handling small quantities of seeds. Because more than the above drugs are highly toxic to humans, there are some dangerous flammable. For the ratio, we have tested several other agents, of which chloroform is better. The results are now organized as follows. Materials and methods Test insects for the rice, Saw Valley Pirates, miscellaneous cereal Valley, four grain beans. The test seeds were corn, wheat, peanut, black bean, mung bean, cabbage, Chinese cabbage, carrot and the like, the water content was below 14%, the fumigation temperature was 30-35 ℃,