5种杀菌剂防治淮山炭疽病田间药效试验

Field Efficacy of Five Fungicides Against Anthracnose in Dioscorea Opposita Thunb

摘要: 为筛选适宜防治淮山炭疽病的药剂，进行了5种杀菌剂防治淮山炭疽病的田间药效试验，结果表明：在本试验条件下，10%世高WDG 1 000倍液防治淮山炭疽病的效果最好，药后7 d和14 d的防效分别达到了86.86%和77.04%；80%代森锰锌WP 900倍液防治淮山炭疽病的效果较好，药后7 d和14 d的防效分别达到了79.63%和67.79%；80%代森锰锌WP和10%世高WDG可作为泉州地区生产上防治淮山炭疽病的药剂配合使用。

Abstract: In order to screen the suitable agents for controlling anthracnose in Dioscorea opposita Thunb, five fungicides were used for the field efficacy trial. The results showed that 1 000-fold solution of 10% difenoconazole WDG had the best control effect on anthracnose in Dioscorea opposita Thunb. The control effect of 7 days and 14 days after treatment could reach 86.86% and 77.04% respectively. 900-fold solution of 80% mancozeb WP also had better control effect. 7 days and 14 days after treatment, they could reach 79.63% and 67.79% respectively. The combination of 80% mancozeb WP and 10% difenoconazole WDG could be used to control anthracnose in Dioscorea opposita Thunb in Quanzhou area.