玉簪炭疽病和斑点病的发生及防治

The occurrence and control of anthracnose and leaf spot in Hosta plantaginea

生产上栽植的玉簪,在叶片上常混合发生炭疽病和斑点病,发病普遍而严重,影响玉簪正常生长发育和开花。选用抗病品种和无病健康种苗,防渍水,加强通风透光,并结合在发病初期进行适当的药剂防治,如波尔多液+硫磺粉可以获得较好的防治效果。

Both anthracnose and leaf spot that often occur mixedly on the leaves of Hosta plantaginea cultivated are very common and serious. The occurrence and control of anthracnose and leaf spot in Hosta plantaginea are harmful to the normal growth and the flowering of the plants. The diseases could be controlled effectively by selecting resistant varieties and healthy seedlings, keeping good drainage and ventition, and applying appropriate chemicals such as Bordeaux mixture plus sulphur powder at the beginning of the disease occurrence.