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月季花盆景的黑斑病要怎样防治？

2025年03月15日 10:37

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网友（1）：

月季花盆景的病虫害防治：月季花有白粉病黑斑病两种，要早期铲除病菌，早春于4月上旬，在月季出窖后树势未活动之前先进行1次修剪，在未发芽前对月季进行全面细致地(包括植株盆土、盆周围场地)喷洒波美0．50～1度石硫合剂。

植株定期打药防治，可用75%可湿性百菌清500倍液和18%的多菌铜150倍液每隔10天喷洒1次，如打药后遇雨，雨后还要及时喷洒，打药时间是6～9月经常打药，控制黑斑病的发生。

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