农药学学报2001，Vol.3Issue(1)：6-11,6.
植物病原菌对杀菌剂抗性风险评估
Evaluation of Risk of Resistance in Plant Pathogenous Fungi to Fungicides
王文桥 1马志强 1张小风 1张文吉2
作者信息
- 1. 河北省农林科学院植物保护研究所,
- 2. 中国农业大学应用化学系,
- 折叠
摘要
Abstract
Risk of resistance in plant pathogenous fungi to fungicides is composed of inherent risk and management risk. At the beginning of the application of target fungicide, inherent risk of resistance can be predicted by artificial induction or fungicide selection, sensitivity variation of wild-type sensitive strains, biological and genetic characteristics of resistant strains and mode of action of target fungicide. Several years after application of target fungicide, risk of resistance can be assessed according to the known experimental data, such as artificial induction or fungicide selection, efficacy appearance and resistance occurrence in field, biological and genetic characteristics of resistant strains, mode of action and application strategies of target fungicide. Currently, 4 methods have been adopted to evaluate risk of resistance. Inherent risk of resistance caused by diseases and fungicides can be divided into low, intermediate, and high level. High risk of resistance to phenylamide fungicides and lower risk of resistance to cymoxanil have been assessed in Phytophthora infestans and Plasmopara viticola. Low or intermediate risk of resistance to SBI has been forecasted in powdery mildew, rust, Fusarium spp. on wheat. Field resistance to high-risk fungicides can be delayed through suitable application method, Unsuitable application of intermediate-risk fungicides may result resistance in field and outstanding decrease of control efficacy.关键词
植物病原菌/杀菌剂/抗性风险分类
农业科技引用本文复制引用
王文桥,马志强,张小风,张文吉..植物病原菌对杀菌剂抗性风险评估[J].农药学学报,2001,3(1):6-11,6.
