论文部分内容阅读
1.2%苦.烟乳油是一种植物杀虫剂,通过对柏大蚜的药效对比试验,表明,1.2%苦.烟乳油1000倍防治效果显著,高效、低毒、无残留,不污染环境,有广阔推广前景。
1.2% bitter. Smoke tobacco is a plant insecticide, through the comparison of the efficacy of Park aphids comparative test showed that 1.2% bitter. Smoke EC 1000 times the prevention and treatment of significant effect, high efficiency, low toxicity, no residue, do not pollute the environment , There is a broad promotion prospects.