节瓜枯萎病防治药剂田间筛选试验

8种根部淋施杀菌剂对节瓜枯萎病的防治试验结果表明,第3次施药后10 d,50%多菌灵可湿性粉剂1 000倍、68%精甲霜.锰锌水分散粒剂1 000倍、62.5 g/L精甲.咯菌腈种衣剂1 500倍和99%恶霉灵可湿性粉剂3 000倍对节瓜枯萎病的平均防效分别为86.0%、50.5%、18.3%和8.2%,而50%咯菌腈可湿性粉剂1 700倍、50%腐霉利可湿性粉剂1 000倍、20%噻菌铜悬浮剂800倍和240 g/L噻呋酰胺悬浮剂1 500倍对节瓜枯萎病没有表现出防效。因此,对节瓜枯萎病有较好防治效果的药剂为50%多菌灵可湿性粉剂,其次为68%精甲霜.锰锌水分散粒剂。

Field screening tests of the fungicides for controlling chieh-qua Fusarium wilt

To screening the fungicides against chieh-qua Fusarium wilt,the eight fungicides were drenched on the roots of chieh-qua respectively.The field test results showed that the control efficiency of 50% Carbendazim WP with diluted 1 000 times,68% Metalaxyl-M mancozeb WG with diluted 1000 times,62.5% Metalaxyl-m fludioxonil FS with diluted 1 500 times,99% Hymexazol WP with diluted 3 000 times,were 86.0%、50.5%、18.3% and 8.2%,respectively at 10 d after the third spraying,but all of 50% Fludionil WP with diluted 1 700 times,50% Procymidone WP with diluted 1 000 times,20% Thiodiazole-copper SC with diluted 800 times and 240 g/L Thifluzamide SC with diluted 1 500 times had no control efficiency against chieh-qua Fusarium wilt.Therefore,50% Carbendazim WP had a best control efficiency against chieh-qua Fusarium wilt,and the next was 68% Metalaxyl-M mancozeb WG.