两种矿物源农药与化学农药混配对百合灰霉病菌抑菌增效作用评价
Evaluation of the synergistic effect of two mineral and chemical fungicides mixed on Botrytis cinerea
王存颖 1梁巧兰 1魏列新 1蔺珂 1陈应娥 1张国印 1田龙 1周建玲 1梁旭东2
作者信息
- 1. 甘肃农业大学植物保护学院,甘肃省农作物病虫害生物防治工程实验室,甘肃 兰州 730070
- 2. 兰州市七里河区农业技术推广站,甘肃 兰州 730070
- 折叠
摘要
[目的]为明确矿物源农药与化学农药混配对百合灰霉病的防治效果.[方法]采用菌落生长速率法、黄瓜子叶法及喷雾法测定了氧化亚铜、石硫合剂分别与3种化学农药混配对百合灰霉菌的抑菌增效作用、离体防效、室内盆栽防效及持效期和对百合的安全性.[结果]混配剂86.2%氧化亚铜WP∶70%噁霉灵SP(9∶1)及混配剂29%石硫合剂AS∶75%百菌清WP(9∶1)抑菌活性最强,EC50分别为99.90 µg/mL、105.58 µg/mL,CTC分别为130.65、122.28,表现为增效作用,其中混配剂86.2%氧化亚铜WP∶70%噁霉灵SP以9∶1混配时对百合灰霉病的防效最好,保护作用防效为87.01%,治疗作用防效为81.81%,室内盆栽防效测定表明第7 天防效最大,为76.18%,持效期为7 d.[结论]试验所选药剂对兰州百合安全,86.2%氧化亚铜WP∶70%噁霉灵SP(9∶1)混剂防效高于单剂防效,而29%石硫合剂AS∶75%百菌清WP(9∶1)混剂的防效则低于其单剂防效.
Abstract
[Objective]To determine the control effect of the mixture of mineral and chemical pesticides on the lily Botrytis cinerea.[Method]The inhibition synergistic effect,in vitro control effect,indoor pot control effect and duration of the mixture of cuprous oxide,lime-sulphur mixture and three chemical fungi-cides on B.cinerea on lily and their safety to lily were determined by using the colony growth rate method,the cucumber cotyledon method and the spray method.[Result]The mixtures of 86.2% cuprous oxide WP:70% oxazole SP(9∶1)and 29% sulphur mixture AS∶75% chlorothalonil WP(9∶1)had the strongest toxic-ity,EC50 were 99.90 µg/mL and 105.58 µg/mL,and CTC were 130.65 and 122.28,respectively,showing a synergistic effect.Among them,the mixture of 86.2% cuprous oxide WP∶70% hymexazol SP(9∶1)had the best control effect on gray mold of lily,with the protection effect and treatment effect were 87.01% and 81.81%,the results of pot experiment in room showed that the largest control effect was 76.18% on the seventh day,with a persistent effect period of 7 d.[Conclusion]The fungicides selected in the trial was safe for Lanzhou lily in Lanzhou.The control effect of the mixture was higher than that of the single agents of 86.2% cuprous oxide WP∶70% hymexazol SP(9∶1),while the control effect of the mixture of 29% lime-sulphur mixture AS:75% chlorothalonil WP(9∶1)was lower than that of the single agents.
关键词
矿物源农药/混配/百合灰霉病/抑菌增效作用/持效期/安全性Key words
mineral pesticide/mixed/Botrytis cinerea/inhibition and synergistic effect/persistent pe-riod/safety引用本文复制引用
基金项目
兰州市科技局项目(2018-4-78)
甘肃省科技重大专项(18ZD2NA010)
甘肃农业大学学科建设基金项目(GAU-XKJS-2018-155)
甘肃省农牧厅项目(GNSW-2016-25)
出版年
2024
NETL
NSTL
万方数据