啶酰菌胺是一种较新的用于防治灰霉菌的杀菌剂,国内鲜有灰霉菌对该杀菌剂的抗性报道。为了明确山西省灰霉菌对啶酰菌胺敏感性情况,通过菌落直径法测定了山西省8个地区139株灰霉菌对该杀菌剂的敏感性。结果表明,所采菌株中137株为相对敏感菌株,2株表现为低抗,敏感菌株占98%以上,说明山西省灰霉菌对啶酰菌胺具有较高的敏感性,但啶酰菌胺具有中度抗性风险,且灰霉菌极易产生抗药性,故有必要做好抗性预防工作。
Bosealid is a quite new fungicide which is used to control Botrytis cinerea. The report of the resistance to 13oscalid in Botrytis cinerea in China is seldom. In order to clear the sensitivity of Botrytis cinerea to Bosealid, inhibi- tion of mycelia growth was used to determine sensitivity of 139 isolates of Botrytis cinerea from 8 areas in Shanxi prov- ince. The result showed that 137 isolates were relatively sensitive strains, and 2 strains showed low resistance. The percentage of relatively sensitive strains was over 98%, suggesting that sensitivity of Botrytis cinerea from Shanxi province to Boscalid was relatively high. However, as B. cinerea is a high-risk pathogen and Boscalid is a middle-risk fungicide, appropriate precautions against resistance development should he taken.