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掌握发生规律:桃小食心虫越冬代成虫5月上中旬开始陆续发生一直可持续到10月初,华北地区7月上中旬和8月中下旬是防治关键期。
Grasp the occurrence of law: Peach Moth overwintering on behalf of the adults began in mid-May onwards continued to be sustainable until early October, North China in mid-July and late August is the critical period of prevention and control.