六种杀菌剂对向日葵白锈病的田间防治效果

Control Effect of Six Fungicides on White Blister Disease of Sunflower in a field

六种药剂对向日葵白锈病的田间防效试验结果表明:25%甲霜灵WP 1000倍液、50%安克WG 2500倍液的防效较高,分别为87.6%和86.8%;显著优于防效次之的64%杀毒矾WP 800倍液(防效75.7%)和其他3种杀菌剂。52.5%抑快净WG 1000倍、72%霜疫必克WP 600倍和80%乙磷铝WP 600倍的防效相当,均未达到50%,是供试药剂中防效较低的3种杀菌剂。经方差分析三者间差异显著。

Experiment using 6 fungicides for the control of white blister disease of sunflower was conducted in a field. 25 % Metalaxyl WP 1 000 times - solution and 50 % Acrobat WP 2 500 times - solution resulted in 87. 6% and 86.88% in disease control, respectively.These 2 fungicides showed higher disease control than 64% Oxadixyl Mancozeb WP 800 times - solution （control effect： 75.7% ） and other 3 ones, 52.5% Famoxadone WG 1 000 times - solution, 72% SYBK WP 600 times - solution and 80% Fosetyl - ahnninum WP 600 times - solution, which exhibited 50% or lower in disease control. Remarkable difference was shown among the three Cases.