中国蔬菜Issue(7)：50-55,6.DOI:10.19928/j.cnki.1000-6346.2024.5022
4种杀菌剂对设施瓠瓜灰霉病的防效评价
Control Effect Evaluation of Four Fungicides on Gray Mold in Facility Bottle Gourd(Lagenaria siceraria)
摘要
Abstract
This study comprehensively evaluated the control effects of 4 fungicides including 43％pyrimethanil·fluxapyroxad SC,40％pyrimethanil SC,80％procymidone wettable powder WP,and 50％procymidone-thiram WP against bottle gourd gray mold by measuring their indoor toxicity to gray mold pathogen,field control efficacy,impact on soil microorganism(bacteria and fungi),and safety during gourd seedling growth stage.The results indicated that all 4 fungicides had certain inhibitory effects on gourd gray mold pathogen.Among them,43％pyrimethanil·fluxapyroxad SC had the best inhibitory effect.Seven days after first time spraying and 7 d after second time spraying the field control effects of spraying 5.78 μg·mL-1 of EC50 were all the best,being 63.94％and 78.46％,respectively.This fungicide had no significant affect on soil bacterial quantity,but could significantly reduced soil fungal quantity,which was safe for the growth period of gourd seedlings.High concentration fungicides had some inhibitory effects on bottle gourd seedlings.Beside 43％pyrimethanil·fluxapyroxad SC,all the other fungicides could lead to different degrees abnormal states in gourd seedlings.In conclusion,43％pyrimethanil·fluxapyroxad SC was suitable for use in production for controlling bottle gourd gray mold.关键词
瓠瓜/灰霉病/杀菌剂/室内毒力测定/田间防效Key words
bottle gourd/gray mold disease/fungicide/indoor toxicity determination/field control efficacy引用本文复制引用
胡江涛,钟秋瓒,宋倩,扶京龙,杨勇,熊春晖,何小露,周英,伍海斌,张静燕..4种杀菌剂对设施瓠瓜灰霉病的防效评价[J].中国蔬菜,2024,(7):50-55,6.基金项目
江西南方地区设施蔬菜提质增效关键技术研究与示范项目(20212BBF61004),赣南设施蔬菜农药减施增效关键技术创新与应用项目(赣市科发[2022]31号),江西省蔬菜产业技术体系赣南综合试验推广站项目(JXARS-06-赣南片) （20212BBF61004）
