杀菌剂对草莓灰霉病菌的毒力测定及田间防效  

Toxicity and Field Control Efficiency of Fungicides Against Strawberry Botrytis cinerea

作　　者：王丽[1] 周增强[1] 侯珲[1] 

机构地区：[1]中国农业科学院郑州果树研究所,河南郑州450009

出　　处：《北方园艺》2016年第12期112-114,共3页Northern Horticulture

基　　金：国家科技支撑计划资助项目(2006BAD07B02)

摘　　要：以"甜查理"草莓为试材,草莓灰霉病菌(Botrytis cinerea)为供试菌,采用菌丝生长速率法,研究了12种杀菌剂对草莓灰霉病菌的影响。结果表明:室内毒力试验中,50g·L^(-1)己唑醇SC的毒力最强,EC_(50)值为0.051 9mg·L^(-1);500g·L^(-1)异菌脲SC、430g·L^(-1)戊唑醇SC和400g·L^(-1)氟硅唑EC对草莓灰霉病菌也有很好的抑制作用。田间试验中,50g·L^(-1)己唑醇SC对草莓灰霉病的防治效果最好,防治效果达81.57%~85.42%;500g·L^(-1)异菌脲SC、430g·L^(-1)戊唑醇SC和400g·L^(-1)氟硅唑EC对草莓灰霉病也具有较好的防治效果,防治效果均在74%以上;10%多抗霉素WP和3%中生菌素WP对草莓灰霉病也有一定的防治效果,防效均能达到65%以上。Taking ‘Tian Chali＇strawberry as material,Botrytis cinerea as test fungus,using mycelium growth rate method,the effect of 12 fungicides on Botrytis cinerea was studied.The results showed that 50g·L^-1 hexaconazole SC had the best toxicity against Botrytis cinerea,with the EC（50） value 0.0519mg·L^-1;500g·L^-1 iprodione SC,430g·L^-1 tebuconazole SC and 400g·L^-1 flusilazole EC also could primely inhibit mycelia growth of Botrytis cinerea in laboratory.6 fungicides were screened to test in the field control trial.Field trials showed that the effect of 50g·L^-1 hexaconazole SC against Botrytis cinerea was the best,the control efficiency reached 81.57%-85.42%;500g·L^-1 iprodione SC,430g·L^-1 tebuconazole SC and 400g·L^-1 flusilazole EC also had better control effect,which were more than 74%;the control effect of 10% polyoxin WP and 3% zhongshengmycin WP were more than 65%.

关 键 词：杀菌剂 草莓灰霉病 毒力测定 田间防效 

分 类 号：S482.2[农业科学—农药学]