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不同药剂及浓度对“玉菇”甜瓜的药害程度分析

Shanghai Agricultural Science and Technology(2021)

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Abstract
为了预防甜瓜生长期白粉病等病害的发生,生产上常用杀菌剂进行防治,但药液喷施到甜瓜果面,易使果面产生斑点,严重影响了甜瓜的商品性.为探究目前甜瓜生产上防治白粉病效果较好的几种药剂对“玉菇”甜瓜药害的严重度,特进行了相关试验.结果 表明,喷施40%苯甲·嘧菌酯SC处理和20%四氟·肟菌酯EW低浓度处理的果实斑点发生率均为100%;喷施20%四氟·肟菌酯EW高浓度处理的果实裂斑、裂果发生较重,裂斑发生率达70.32%;喷施80%代森锰锌WP和12.5%四氟醚唑AS处理的果实无斑点发生,对甜瓜果实较安全.
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