葡萄霜霉病药剂防治试验

采用载玻片萌发法和田间药剂保护与治疗试验,比较了14种药剂对葡萄霜霉病菌孢子囊萌发的抑制作用及田间的防治效果。结果表明66.8%霉多克可湿性粉剂800倍液、70%安泰生可湿性粉剂400倍液、78%科博可湿性粉剂1300倍液,不仅在室内对孢子囊的萌发表现出较好的抑制作用;而且在田间,无论是病前保护,或是病后治疗都表现出较好的防治效果,是供试药剂中表现比较突出的。波尔多液的保护作用仍比较明显,其他药剂也有一定防治作用。生产上应根据当地病情及经济有效和轮换使用的原则,合理选择使用。

Experiment on the Control of Downy Mildew of Grape with Several Fungicides

In this paper,according to the method of containing fragments germination and fungicides protecting and controlling in the field,the controlling effects of 14 chemicals(dose) on grape downy mildew were comparatively studied in the laboratory and field.The results showed that whether in the room and outside 66.8% Melody Duo diluted 800 times,70% Antracol diluted 400 times,78% Cuprofix of 1 300 times,not only had good effects on restraint of the spores germinated in the laboratory,but also on the controlling in the field,whether before the diseases protected or after the disease controlled,all had good effects on the controlling of downy mildew of grape,all three agents were significantly superior to traditional fungicides compared with other ones.The protective effect of Bordeaux mixture was still given apparenly;some other fungicides also had prevention effects.