3种药剂对2个葡萄品种白粉病的防治效果

Control Effect of Three Chemicals on Uncinula Necator of Two Grape Varieties

葡萄白粉病分布于我国各葡萄产区,是危害葡萄(Vitis vinifera L)叶片和果实的一种真菌病害。以欧亚种葡萄‘9307’和‘维多利亚’为材料,用"50%乙生WP"600倍液、"70%威尔达甲托WP"600倍液和"50%多菌灵WP"1000倍液进行了白粉病的防治试验。结果表明,"50%乙生WP"600倍液和"70%威尔达甲托WP"600倍对葡萄白粉病均有良好的防治效果,"50%多菌灵WP"1000倍液的防效较差;3种药剂多次喷施对‘9307’的防治效果要显著优于‘维多利亚’。

Grape powdery mildew, wide-spread in each grape-producing areas in China, is a harmful fungus disease to the leaves and fruits of vine.Two grape cultivars of Vitis vinifera L.—‘9307’ and ‘Victoria’ were used as experimental materials so as to study the effects of three chemicals—50% Yisheng WP 600 times solution, 70% WeiErda Jiajituobujing WP 600 times solution and 50% Carbendazim WP 1000 times solution—on controlling grape powdery mildew. The result showed that control effect of 50% Yisheng WP 600 times solution and 70% WeiErda Jiajituobujing WP 600 times solution on powdery mildew were the best; 50% carbendazim WP 1000 times solution was the worst. In addition, as to the control effect of three chemicals after spraying three times on powdery mildew of the two grape cultivars, ‘9307’ was superior to Victoria.