Unverified80% confidenceSolutionTime unknown
苦楝油防治病虫害的标准方案:初期发现虫害→选冷压高印楝素原油→按1-2%浓度加乳化剂稀释→傍晚全株叶正反面喷施→每7天一次连续3次→期间避开花期与授粉时段,兼具杀虫、拒食、抑制产卵三重作用
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