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百香果春季注意防治白粉病

發(fā)布時(shí)間：2015-04-09 02:31:56 來(lái)源：農(nóng)民日?qǐng)?bào) 作者：佚名責(zé)任編輯：羅伯特

　　春季雨水多，濕度大，百香果容易感染白粉病，在葉片、花蕾和幼果上布滿(mǎn)白色粉狀物后，葉片失綠黃化，花蕾皺縮腐爛，幼果大量脫落，降低坐果率。

　　在春季要注意檢查百香果的葉片、花蕾和幼果，發(fā)現(xiàn)有白色粉狀物出現(xiàn)后，就要葉面噴灑800倍50%三唑酮水溶液，或1000倍80%腈菌唑水溶液，或1500倍10%醚菌酯水溶液，或1000倍50%硫懸浮劑水溶液進(jìn)行防治，每7~10天噴灑一次，連續(xù)噴灑2~3次，均勻噴濕所有的莖蔓、葉片、花蕾和幼果，以開(kāi)始有水珠往下滴為宜。石華

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