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《World Pesticides》 2015-01
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Study on the Field Control Efficacy of Several Fungicides against Cucumber Downy Mildew

ZHANG Jiao-yan;LI Dong;LIU Wen-jing;XING Yu;Key Laboratory of Resource of Plant Protection and Pest Control,Ministry of Educatiaon,Northwest A&F University;  
The study the control effect of several fungicides on cucumber downy mildew,provides a theoretical basis for their scientific and rational application and promotion.Field trials were conducted in April 2014 for controlling cucumber downy mildew.The tested pesticides have good control effect on cucumber downy mildew,in which cymoxanil · famoxadone 52.5%WDG 250 g ·hm~(-2),propineb · iprobalicarb 66.8%WP 1 200 g · hm~(-2) have remarkable effect against cucumber downy mildew with more than 80%control.Azoxystrobin 250 g/l SC 160 g · hm~(-2) has a control effect of 77.59%.Mancozeb·flumorph 60%WP 800 g ·hm~(-2),propamocarb hydrochloride 66.5%SL 800 g · hm~(-2),dimethomorph 50%WDG 250 g · hm~(-2) all can control the disease by about 71%.Before or at the early stage of infection,cymoxanil · famoxadone 52.5%WDG propineb · iprobalicarb 66.8%WP,azoxystrobin 50 g/l SC were the better fungicides for controlling cucumber downy mildew when applying and they should be used by rotation to delay the resistance.
【Fund】: 农业部农药登记药效试验杀菌剂项目(田间-115)
【CateGory Index】: S436.421.11
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