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《Journal of Plant Protection》 2018-02
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Efficacy of carbendazim and its mixtures for controlling wheat scab

Song Yimin;Cong Guolin;Chen Huaigu;Jiangsu Yanjiang Institute of Agricultural Sciences;Jiangsu Academy of Agricultural Sciences;  
To determine the efficacy of carbendazim and its mixtures on controlling wheat scab in fields with increasing frequency of carbendazim-resistance isolates, the resistance of Fusarium graminearum populations to carbendazim was monitored in the same field from 2014 to 2016, and the efficacy of carbendazim and its mixtures were conducted correspondingly in 2015 and 2016. The results showed that the frequencies of resistant isolates against carbendazim were 22.97%, 38.55% and 43.38% in 2014, 2105 and 2016, respectively, with the trend rising year by year. Compared with the CK, the efficacy on wheat scab control of tebuconazole, carbendazim·tebuconazole and carbendazim·triadimefon treatments were 97.82%,92.16% and 85.98% in 2016, respectively, and the yields of three treatments increased by 23.90%, 23.54% and 22.57%, respectively. The DON concentration in wheat grains collected from plots of three treatments reduced by 57.39%, 59.99% and 43.34%, respectively. The tebuconazole treatment and carbendazim·tebuconazole treatment were the best of all treatments, and better than the mixture of carbendazim·triadimefon treatment. Therefore, tebuconazole or carbendazim·tebuconazole could be used as alternatives to control wheat scab and to increase wheat yield, meanwhile reduce grain toxin at the low and medium level areas of infectious.
【Fund】: 江苏省科技支撑计划(农业部分)项目(BE2013432);; 江苏省农业科技自主创新基金项目[CX(15)1001]
【CateGory Index】: S435.121.45
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