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在室内和林间,对速灭灵烟雾剂(有效成份为氰戊菊酯)防治马尾松毛虫进行了研究。该药作用方式以触杀为主,林间喷施受药松针杀虫持效7天以上,耐雨淋较理想,每亩有效成份用量1—1.6克,5龄以下幼虫受药60秒以上,有较好防效。与常规地面乳油喷雾相比,防治效果略优,提高工效3—4倍,降低成本43.3%,且不受水源、树高条件限制。本文还探讨了主要林地类型条件下的基本施药技术措施。
In indoor and in the forest, dextromethorphan aerosol (the active ingredient is fenvalerate) to control Dendrolimus punctatus was studied. The method of action of this medicine is to touch and kill. The forest is sprayed with pine needles and insecticides for more than 7 days, with better resistance to rain. The amount of active ingredient per acre is 1-1.6 grams, and larvae under 5 years of age take more than 60 seconds. Better anti-efficiency. Compared with the conventional ground EC spray, the control effect is slightly better, the work efficiency is improved by 3-4 times, the cost is reduced by 43.3%, and the water and tree height conditions are not limited. The paper also discussed the basic application of the technical measures under the conditions of the main types of forest land.