不同药剂防治柑橘炭疽病田间药效试验研究
Effects of Different Fungicides Against Citrus Anthracnose in the Field
易君 1李事成 1田家顺 2王昆2
作者信息
- 1. 怀化市农业综合服务中心,湖南 怀化 418000
- 2. 湖南禾益作物科学有限公司,湖南 长沙 410125
- 折叠
摘要
为进一步筛选防治柑橘炭疽病的高效安全药剂,明确不同杀菌剂对柑橘炭疽病的防治效果及对柑橘的安全性,连续两年开展6种杀菌剂防治柑橘炭疽病田间药效试验.结果表明:40%苯甲·吡唑酯微乳剂和60%唑醚·代森联水分散粒剂处理对柑橘果实炭疽病的防治效果连续两年极显著高于其他药剂处理,且2个处理间无显著性差异,其中2022年末次药后21 d调查防效分别为84.3%和82.7%,2023年为81.3%和80.0%;12.5%氟环唑悬浮剂、80%代森锰锌可湿性粉剂和25%嘧菌酯悬浮剂处理对柑橘果实炭疽病均有一定防治效果;这5种杀菌剂在生产上可根据病害发生情况交替轮换使用,以延缓柑橘炭疽病病菌的抗药性.
Abstract
A field experiment was carried out for two consecutive years to determine the control effects of six different fungicides on citrus anthracnose,on the basis of which the effective and safe fungicides against citrus anthracnose were screened.The results showed that the control effects of difenoconazole·pyraclostrobin 40%microemulsion and pyraclostrobin·metiram 60%water dispersible granules on citrus fruit anthracnose were significantly higher than those of other fungicides for two consecutive years.The control effect had no significant difference between the two fungicides.Specifically,the control effects 21 days after the last application were 84.3%and 82.7%in 2022 and 81.3%and 80.0%in 2023,respectively.In addition,epoxiconazole 12.5%suspension concentrate,mancozeb 80%wettable powder,and azoxystrobin 25%suspension concentrate also showcased control effects on citrus anthracnose.These five fungicides could be used alternately in production to prevent Colletotrichum gloeosporioides from developing resistance to fungicides.
关键词
柑橘/炭疽病/杀菌剂/防治效果Key words
citrus/anthracnose/fungicide/control effect引用本文复制引用
出版年
2024
NETL
NSTL
万方数据