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烟台市科委委托市林业局主持召开的拟除虫菊酯毒笔防治赤松毛虫及杨雪毒蛾试验鉴定会,于1936年1月28日在文登县召开。参加会议的有教学、科研、生产单位的高级农艺师、讲师、工程师等科技人员共22人。两项成果都通过了技术鉴定。 这两项试验,是由烟台市林业局森保科和文登县林业局森保站分别组织人员进行试验的。利用赤松毛虫秋季下树越冬春,季上树危害及杨雪毒蛾白天下树隐蔽,夜间上树危害的习性,用拟除虫菊脂(杀灭菊脂、氯氰菊脂等)加石膏粉做成毒笔,在树干胸高处划一闭合环,害虫上下树爬过药环即会中毒死亡。
Yantai Municipal Science Commission commissioned the Municipal Bureau of Forestry hosted a pyrethroid poison pen against Cedilantex caterpillar and Mycophenoano test identification meeting, January 28, 1936 held in Wendeng County. There were 22 senior agronomists, lecturers, engineers and other scientific and technical personnel who attended the meeting with teaching, scientific research and production units. Both results passed technical appraisals. These two tests were carried out by the Yantai Forestry Bureau and the Wendeng County Forestry Bureau Senbao Station were organized by personnel trials. The use of red caterpillar fall trees under winter wintering, tree damage on the season and the Yang Xue Tong moth under the tree hidden during the night, the habit of damaging the tree at night, with pyrethrins (pyrethrum, cypermethrin, etc.) plus gypsum powder made of toxic pen, Draw a closed loop in the chest height of the trunk, the pests climbing up the drug loop that will poison the death.