Control Effect of Chinese Medicinal Herb Extracts on Powdery Mildew of Hullless Pumpkin
LI Fa-kang,LI Pei,LI Xing-yu,XUE Ying-yu*
College of Plant Protection,Gansu Agricultural University,Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province,Lanzhou 730070,Gansu,China
Abstract:Taking the ethanol extracts of 5 Chinese herbal medicines,including Cnidium monnie,Perilla frutescens,Houttuynia cordata,Glycyrrhiza uralensis,Asarum heterotropoide as test material,this paper studied the protective and curative effects of ethanol extract on powdery mildew of Hull-less pumpkin by indoor pot cultivation test.The results showed that the tested 5 Chinese herbal extracts had certain protective and curative effects on Hull-less pumpkin powdery mildew,and the protective and curative effects of most Chinese herbal extracts at a concentration of 0.02 g · mL-1 were higher than the concentration of 0.01 g ·mL-1.Among them,the protective and curative effect of Cnidium monnie extract was the best.When the concentration was 0.02 g · mL-1,the protective and curative effects were 87.57% and 86.80%,respectively.The protective effects of 0.02 g · mL-1Cnidium monnie,Asarum heterotropoide on Hull-less pumpkin powdery mildew were significantly better than that of 15% triadimefon WP by 1 000 times.The protective and curative effects of Glycyrrhiza uralensis were the worst.The 0.02 g · mL-1 extract of Cnidium monnie could be preferentially used as new type biological agents for controlling pumpkin powdery mildew.
李发康,李培,李兴昱,薛应钰. 5种中草药提取液对裸仁美洲南瓜白粉病的防治效果[J]. 中国蔬菜, 2020, 1(3): 56-60.
LI Fa-kang,LI Pei,LI Xing-yu,XUE Ying-yu. Control Effect of Chinese Medicinal Herb Extracts on Powdery Mildew of Hullless Pumpkin. China Vegetables, 2020, 1(3): 56-60.