纳米氧化亚铜水悬浮液对黄瓜霜霉病的防治效果

Efficacy of Nano Cu_2O Aqueous Suspension to Control Cucumber Downy Mildew

纳米氧化亚铜制剂粒度均匀、分散性好,利用纳米材料所具有的表面活性效应、小尺寸效应等物理特性杀灭真菌。为了解纳米Cu2O对黄瓜霜霉病的抑菌效果,该试验采用纳米Cu2O水悬浮液1 000mg·L-1、纳米Cu2O水悬浮液500mg·L-1、百菌清75%可湿性粉剂800倍液、清水空白4个处理进行了黄瓜霜霉病盆栽药效试验。结果表明:纳米Cu2O水悬浮液1 000mg·L-1的防治效果优于常规的药剂,纳米Cu2O水悬浮液可在防治黄瓜霜霉病中推广使用。

Nanometer cuprous oxide preparation of uniform particle size,good dispersion,the use of nanomaterials have the surface activity,small size effect and other physical properties kill fungi.In order to understand the antibacterial effect of nano Cu2 O on cucumber downy mildew,the experiment adopted nano Cu2 O aqueous suspension 1 000 mg·L-1,nano Cu2 O aqueous suspension 500 mg·L-1,chlorothalonil 75% WP 800 times,clear water blank to deal with cucumber downy mildew pot efficacy test.The results showed that the control effect of 1 000 mg·L-1 nano Cu2 O aqueous suspension was better than that of the conventional one.The nano Cu2 O aqueous suspension could be used in the control of cucumber downy mildew.