摘要
采用叶面喷雾法测定了多抗霉素、木霉菌、枯草芽孢杆菌、氨基寡糖素4种生物农药对番茄白粉病、早疫病的防治效果和对番茄生长安全性评价。结果表明:供试的4种生物农药第2次施药后7 d和14 d,以10%多抗霉素可湿性粉剂和1 000亿孢子/g枯草芽孢杆菌可湿性粉剂对番茄白粉病防治效果最好,其防治效果分别为69.1%、80.0%和67.7%、74.3%;第2次施药后14 d,20 g/L氨基寡糖素水剂对番茄白粉病防效最低,仅为36.2%。4种生物农药第2次施药后14 d,总体来看,以10%多抗霉素可湿性粉剂对番茄早疫病防治效果最好,为85.5%,其次为2亿孢子/g木霉菌可湿性粉剂、20 g/L氨基寡糖素水剂和1 000亿孢子/g枯草芽孢杆菌可湿性粉剂,其对番茄早疫病的防治效果相当,分别为67.7%、65.6%和60.3%。以10%多抗霉素可湿性粉剂防治番茄白粉病和早疫病效果最佳,4种生物农药在试验剂量下均对番茄生长安全。
The leaf spray method was used to determine the control effects of four biopesticides,including polyoxin,trichoderma,bacillus subtilis and amino-oligosaccharide on tomato powdery mildew and early blight,and the safety evaluation on tomato growth.The results showed that control effects of 10% carbendazim WP and 100 billion spores/g bacillus subtilis WP on tomato powdery mildew were the best,with the control effects of 69.1%,80.0% and 67.7%,74.3% at 7th day and 14th day after twice administration;control effects of 20g/L amino oligosaccharide on tomato powdery mildew were the lowest,with the control effects of 36.2% at 14th day after twice administration.In the whole,at 14th day after twice administration of the four biopesticides,control effect of 10% carbendazim WP on tomato early blight was the best,with the control effect of 85.5%.Control effects of 200 million spores/g trichoderma fungi WP,20 g/L amino oligosaccharide and 100 billion spores/g bacillus subtilis WP on tomato early blight were equal,with the control effects of 67.7%,65.6% and60.3%.To sum up,the control effects of 10% carbendazim WP on tomato powdery mildew and early blight were the best,and the four biopesticides with test doses were all safe to tomato growth.
作者
邢敏
田生虎
康萍芝
杜玉宁
Xing Min;Tian Shenghu;Kang Pingzhi;Du Yuning(Institute of Plant Protection,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002;Rural Cooperative Economic Management Station of Huinong District,Shizuishan,Ningxia 753200)
出处
《宁夏农林科技》
2021年第11期46-48,67,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏回族自治区重点研发计划项目(2019BBF02026)。
关键词
番茄
生物农药
白粉病
早疫病
防治试验
防效
Tomato
Biopesticides
Powdery mildew
Early blight
Prevention test
Control effect
