苹果萌芽至花期病虫的综合防治内容摘要:
2、维菌素倍液或苦参碱倍液树上喷雾,兼治黄蚜、苹果小卷叶蛾。 化学防治:()苹果树腐烂、苹果枝干轮纹病。 月份是腐烂病、轮纹病的发病高峰,亦是防治的关键期,应抓紧防治。 刮治方法同休眠期。 ()苹果白粉病。 发芽前喷晶体波美石硫合剂倍液,兼治苹果霉心病。 发芽后药剂可选用:福星倍液或粉锈宁倍液,或硫悬浮剂倍液。 ()苹果霉心病。 开花前和开花末期各喷次代森锰锌或大生四五倍液,或易保倍液。 ()苹果绵蚜。 清明前蚜群尚未分散时集中施药防治,可选用乐斯本乳油倍液或吡虫啉可湿性粉剂倍液树上喷雾,兼治黄蚜、苹果小卷叶蛾。 ()叶螨、蚜虫、苹果瘤蚜、绣线菊蚜。 可用吡虫啉或蚜虱净倍液,或辟蚜雾倍液,或抗蚜威倍液喷雾。 ()天牛。 可用磷化铝片或毒签熏杀天牛,每一个新虫孔放片。 专利查询。苹果萌芽至花期病虫的综合防治
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