【作者】 张夕林； 孙雪梅； 张谷丰； 易红娟；

【Author】 Zhang Xilin Sun Xuemei Zhang Gufeng et.al. (Plant Protection Station of Tongzhou in jiangsu.Tongzhou 226300)

【机构】 江苏省通州市植保站；

【摘要】 1996-2002年以5g/mL为检测标准,对通州市油菜菌核病抗药性进行了室内测定和田间试验,结果表明,油菜菌核病已在大范围内对多菌灵及其复配剂产生了抗性,导致其防效显著下降,其中抗性比例最高达100%,离体和活体抗性程度测定表明,其抗性菌株皆为高抗菌株,EC⁵⁰>100g/mL,MIC（最小抑制浓度）>1000g/mL。为了解决此问题,筛选出了高效的防治药剂菌核净、万霉灵、使百克;提出了油菜菌核病的最佳防治适期,形成了本地区抗性油菜菌核病的综合治理配套技术,并进行了较大面积的示范推广,取得了显著的效益。更多还原

【Abstract】 From 1996 to 2002, taking 5 μg/mL as the test standards, the test of the fungicide resistance to Sclerotinia libertiana, caused rape sclerotinia stem rot, have been performed in laboratory and in field in Tongzhou city. The results showed that the carbendazim resistance had been widely spreaded ,and the highest resistant ratio had been up to 100%. The susceptibility test in vitro and in vivo showed that all the resistant strains hand been the high resistant ones ,with EC50>100μg/mL and MIC>1000μg/m.To resolve the problem,some high efficient screened out and the most appropriate control preild has been suggested.更多还原