蔬菜霜霉病怎么防治的

2025-04-08 07:49:59
推荐回答(1个)
回答1:

蔬菜霜霉病防治方法:
1.农业防治。一是重病田要实行2-3年轮作。施足腐熟的有机肥,提高植株抗病能力。二是合理密植,科学浇水,防止大水漫灌,以防病害随水流传播。加强放风,降低湿度。三是如发现被霜霉病菌侵染的病株,要及时拔除,带出田外烧毁或深埋,同时,撒施生石灰处理定植穴,防止病源扩散。收获时,彻底清除残株落叶,并将其带到田外深埋或烧毁。
2.药剂防治。可以在发病初期用75%百菌清可湿性粉剂500倍液喷雾,发病较重时用58%甲霜·锰锌可湿性粉剂500倍液或69%烯酰·锰锌可湿性粉剂800倍液喷雾。隔7天喷一次,连续防治2~3次,可有效控制霜霉病的蔓延。同时,可结合喷洒叶面肥和植物生长调节剂进行防治,效果更佳。

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