| 凌金锋 1, 彭埃天 1*, 姜子德 2*, 习平根 2, 3, 宋晓兵 1, 程保平 1, 崔一平 1, 陈 霞 1.荔枝麻点病田间防治药剂筛选及评价[J].植物保护,2021,47(4):250-257. |
| 荔枝麻点病田间防治药剂筛选及评价 |
| Screening and evaluation of fungicides against litchi pepper spot disease in the field |
| 投稿时间：2020-04-09 修订日期：2020-07-02 |
| DOI：10.16688/j.zwbh.2020188 |
| 中文关键词: 荔枝麻点病 化学防治 田间防效 农药残留 |
| 英文关键词:litchi pepper spot disease chemical control field control effect fungicide residue |
| 基金项目:国家重点研发计划(2017YFD0202100); 国家荔枝龙眼产业技术体系建设项目(CARS-32); 广东省现代农业产业技术体系(2018LM1077, 2019KJ107-4); 广东省科技计划(2017A020208017); 广东省乡村振兴战略专项(403-2018-XMZC-0002-90); 广东省农业科学院院长基金(201709) |
| 作者 | 单位 | E-mail | | 凌金锋 1, 彭埃天 1*, 姜子德 2*, 习平根 2, 3, 宋晓兵 1, 程保平 1, 崔一平 1, 陈 霞 1 | 1. 广东省农业科学院植物保护研究所, 广东省植物保护新技术重点实验室, 广州 510640
2. 华南农业大学植物病理学系, 广东省微生物信号与作物病害防控重点实验室, 广州 510642
3. 岭南现代农业科学与技术广东省实验室茂名分中心, 茂名 525000 | 彭埃天pengait@163.com; 姜子德zdjiang@scau.edu.cn |
|
| 摘要点击次数: 330 |
| 全文下载次数: 414 |
| 中文摘要: |
| 荔枝麻点病是我国大陆地区荔枝上普遍发生的一种新病害, 其病原为暹罗刺盘孢 Colletotrichum siamense ?为筛选防治该病的有效药剂并评价其农药残留安全性, 于2012年-2018年分别在8个不同的果园开展了田间药剂防治试验, 并于2016年和2018年分别对果实的农药残留量进行了检测?试验结果表明, 250 g/L吡唑醚菌酯乳油125~250 mg/L?60%唑醚·代森联水分散粒剂300~800 mg/L的防效较好且较为稳定, 对荔枝麻点病的防效为74.20%~92.52%; 250 g/L嘧菌酯悬浮剂166.7~250 mg/L?450 g/L咪鲜胺水乳剂250~450 mg/L?325 g/L苯甲·嘧菌酯悬浮剂216.7~325 mg/L和62%多·锰锌可湿性粉剂885.7~1 240 mg/L的防效次之, 但不同年份不同果园间防效波动较大, 防效介于65.81%~92.62%之间; 在挂果期田间施药3~4次后, 荔枝果实中各药剂农药残留量均符合国家食品安全标准(GB 2763—2016); 此6种药剂推荐用于荔枝麻点病的田间防治? |
| 英文摘要: |
| Litchi pepper spot disease, caused by Colletotrichum siamense, is a newly recorded disease and widespread in mainland China. In order to screen effective fungicides for controlling litchi pepper spot disease, and also to evaluate the safety of fungicide residue on fruit after field application, field evaluations were conducted in eight geographically distinct orchards from 2012 to 2018, and fungicides residues were determined in 2016 and 2018. The results indicated that pyraclostrobin 250 g/L EC at 125-250 mg/L, pyraclostrobin·metiram 60% WG at 300-800 mg/L reduced the disease incidence stably by 74.20%-92.52%. The following fungicides were azoxystrobin 250 g/L SC at 166.7-250 mg/L, prochloraz 450 g/L EW at 250-450 mg/L, difenoconazole·azoxystrobin 325 g/L SC at 216.7-325 mg/L and carbendazim·mancozeb 62% WP at 885.7-1 240 mg/L, which reduced the disease incidence by 65.81%-92.62%, but fluctuated greatly in different years or orchards. The residues of all fungicides on litchi fruits conformed to the National Food Safety Standard in China (GB 2763—2016). The above results suggest that all the six kinds of fungicide can be used for controlling litchi pepper spot disease in the field. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
