摘要
用久效磷、氯氟氰菊酯和三氯杀螨醇进行模拟抗性培育结果，以抗三氯杀螨醇叶螨种群的抗性增长速度最快，汰选１７次时，抗性高达１３１３倍；抗氯氟氰菊酯种群次之，抗性为２Ｏ５倍（汰选２Ｏ次）；抗久效磷种群为最慢，抗性为１３倍（汰选２Ｏ次）。田间抗性监测，棉叶螨对三氯杀螨醇的搞性发展速度较慢，抗性水平较低与室内汰选结果不同。这可能与田间棉叶螨为复合种群和环境条件不同有关。用上三个种群对１３种杀虫杀螨剂进行交互抗性研究。抗久效磷种群测定结果，久效磷与氧乐果、水胺硫磷、氟氟氰菊脂和双甲眯之间都有交互抗性，以氯氟氰菊酯的交互抗牲更强（１３１倍），与氟氯菊酯、甲氰菊酯和其他选择性杀螨剂如三氯杀螨时、泱螨酯、克螨特、唑螨酯、三唑锡等均无交互搞性；用抗氯氟氰菊酯种群测定结果，氯氟氰菊酯与甲氰菊酯有交互抗牲，与氟氟菊酯、久效磷、氧乐果、水胺硫磷以及其他选择性杀螨剂等均无交互抗性，但与双甲脉和哎螨灵之间有负交互抗性；用抗三氯杀螨时种群测定结果，三氯杀蜗醇与结构非常相似的溴螨酯以及氯氟氰菊酯有很强的交互抗性，与哎螨灵、三唑锡和双甲眯之间有负交互抗性，以双甲眯最明显，与甲氰菊酯。
Resistant strains of cotton spider niites(T. trunca-tus Ehara)were selected respectively in the laboratoryby monocrotophos,cyhalothrin and dicofol The results ind-cated that the resistant development of the dicofol-resistant$$$$strain were very quick.After seventeen times selection,the resistant level was 1 3 1 3 folds:Thresistant level for cy-ha1othrin-resistant strain was 205 folds(20 times selection):The resistant development for monocrotophos-resistant cottonspider mites strain was slower(13 folds).Monitoring field re-sistance indicated that the resistance for cotton spider mites todicofol developed slowly and resistant levels were lower。Itwas different with resistant selection result in laboratory,per-haps it related to the cotton spider mites strains in the fields,the diffrent environment and so on.Cross-resistance to13 pesticides was evaluated.Invest-gation into monocrotophos-resistant strain suggested thatomethoate, isocarbophos,cyhalothrin and amitraz had positivecross r-esistance to monocrotophos,especially cyhaothrin.Be-fenthrin,fenpropathrin and other selective miticides had nocross-resistance,Test of cvhalothrin-resistant strain indicatedthat fenpropathrin had positive cross-resistance to cy-halothrin,amitraz and pyridaben showed negative cross-resis-tance,but befenthrin, monocrotophos,omethoate, isocarbophosand other selective miticides had no cross-resistance.Dicofol-resistant strain showed strong positive cross-resistance to cy-halothrin and bromopropylate which structure was very sim-lar to dicofol,Perhaps amitraz,pyridaben and azocyclotin hadnegative cross-resistance especially amitraz , but fen-propathrin, befenthrin,other organophosphorous pesticide andselective miticidesh3d no cross-resistance todicob1.Cross-re-sistance has close relation to the structures of pesticides.
出处
《农药》
CAS
北大核心
1995年第5期10-13,9,共5页
Agrochemicals
关键词
棉叶螨
抗性培育
交互抗性
三氯杀螨醇
久效磷
resistant selection,cross-resistante, cotton spi-der mites(T.truncatus Ehara),resistant strain.
