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根据梨大食心虫的发生规律,要本着“冬季剪除虫蛀芽,转芽初期药剂打。成虫羽化性引诱,化蛹缠把人工捉”的原
According to the occurrence of pears, the principle of pest insects should be based on the principle of “pest-removing buds in winter, initial pesticides to turn buds, entrapping adults, pupa wrapping artificial catches”