摘要
探讨了2种矿物油乳剂与2种杀螨剂混合使用对3种柠檬害螨的田间防效.单一用药时,15%哒螨灵乳油1000倍液对3种柠檬害螨的田间防效最差,防治后第1d、第3d及第7d田间防效均处于60%以下.混合使用时,97%法夏乐乳油50倍液+5%阿维菌素乳油1500倍液、97%法夏乐乳油50倍液+15%哒螨灵1000倍液、97%法力佳乳油200倍液+5%阿维菌素乳油1500倍液及97%法力佳乳油200倍液+5%哒螨灵乳油1000倍液防治后第3d和第7d田间防效可达到70%以上.因此,3种柠檬害螨已对哒螨灵产生了抗药性,矿物乳油与其他化学农药混用具有明显的增效作用.
The containing efficacy for Panonychus citri, Eotetranychus sexmaculatus, Phyllocoptruta oleivora, were determined by 2 mineral spray oils emulsion, 2 chemical pesticides and their mixtures in lemon orchards. The field efficacies of pyridaben 15% EC(1000×) was the worst for three kinds of lemon mites, and the field efficacies on the 1st, 3rd, and 7th after treatment were below 60% when the pesticide was used alone. The field efficiencies of citrole paraffin oil 97% EC (150×)+ avermectin 5% EC (1500×), citrole paraffin oil 97% EC (150×)+ pyridaben 15% EC (1000×), mana 97% EC (200×)+ avermectin 5% EC (1500×) and mana 97% EC (200×)+ pyridaben 15% EC (1000×), their corrected mortality were more than 70% after 3 and 7 days when the pesticides were mixed. Therefore, the three types of lemon mites had resistant to the pyridaben, the mineral spray oils emulsion have a significant synergistic effect with other chemical pesticides.
作者
杨建东
王自然
郭俊
郭莉娜
李进学
高俊燕
Yang Jiandong;Wang Ziran;Guo Jun;Guo Lina;Li Jinxue;Mao Junyan(Institute of Tropical and Subtropical Cash Crops,Yunnan Academy of Agricultural Sciences,Dehong 678600,China)
出处
《农业科学研究》
2019年第2期13-17,共5页
Journal of Agricultural Sciences
基金
现代农业(柑橘)产业技术体系柠檬综合试验站建设专项(CARS-27)
公益性行业(农业)科研专项经费项目(201403036)
云南省科技厅重点新产品计划项目(2015BB006)
云南省柠檬产业化技术创新团队(2017HC023)
创新人才项目(2017HB130)
关键词
矿物油乳剂
柑橘全爪螨
六斑始叶螨
柑橘锈壁虱
田间防效
柠檬
mineral spray oils
Panonychus citri
Eotetranychus sexmaculatus
Phyllocoptruta oleivora
field efficacy
lemon
