几种杀菌剂对荞麦茎溃疡病菌的生物活性和田间防治效果

Biological Activity and Field Control Effects of Several Fungicides against Buckwheat Stem Canker by Rhizoctonia spp.

郭婷 ¹刘雨薇 ²吴进蓉 ³班瑞娟 ³岳文冉 ⁴李哲 ⁵王莉花 ⁶张笑宇³

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作者信息

1. 内蒙古农业大学园艺与植物保护学院,010020,内蒙古呼和浩特;内蒙古农牧业科学院,010000,内蒙古呼和浩特
2. 内蒙古农业大学园艺与植物保护学院,010020,内蒙古呼和浩特;包头市达茂旗农牧局,014599,内蒙古包头
3. 内蒙古农业大学园艺与植物保护学院,010020,内蒙古呼和浩特
4. 内蒙古民族大学生命科学与食品学院,028000,内蒙古通辽
5. 通辽市农业技术推广中心,028000,内蒙古通辽
6. 云南省农业科学院生物技术与种质资源研究所,650205,云南昆明
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摘要

荞麦茎溃疡病是影响荞麦产量和品质的重要因素,选用常用真菌杀菌剂,测定其对荞麦茎溃疡病菌生物活性并进行田间防治效果试验.生物活性测定结果显示,40％氟硅唑EC、25g/L咯菌腈FS、15％三唑酮WP、40％福美·拌种灵WP抑制作用较好,其中40％氟硅唑EC 500 μg/mL抑制率最高,为89.7％,有效浓度ECs0为1.56μg/L.田间防治效果试验中,250 g/L嘧菌酯SC 675～855 mL/hm2、40％氟硅唑EC 150～375 mL/hm2、250 g/L吡唑·醚菌酯EC 570 mL/hm2、40％福美·拌种灵WP 0.15～2.85 g/hm2和50％氟啶胺SC 375～480 mL/hm2防治效果较好,产量和净利润明显提升.生产中,荞麦茎溃疡病可以使用嘧菌酯、氟硅唑、吡唑·醚菌酯、福美·拌种灵和氟啶胺沟施防治.

Abstract

Buckwheat stem canker is an important disease affecting yield and quality of buckwheat.The biological activity of Rhizoctonia spp.against stem canker of buckwheat was determined by using common fungicides.Biological activity assay results showed that flusilazole 40％EC,fludioxonil 25 g/L FS,triadimefon 15％WP and Thiram·Seedvax 40％WP had obvious inhibitory effects,and the inhibitory rate of flusilazole 40％EC at 500 μg/mL was 89.7％,and EC50 was 1.56 μg/L.In field control tests,azoxystrobin 250 g/L SC at dosage 675-855 mL/ha,flusilazole 40％EC at dosage 150-375 mL/ha,pyraclostrobin 250 g/L EC at dosage 570 mL/ha,Thiram·Seedvax 40％WP at dosage 0.15-2.85 g/ha and fluazinam 50％SC at dosage 375-480 mL/ha had better control effects,increased production and net profit obviously.Azoxystrobin,Thiram·Seedvax,pyraclostrobin,flusilazole and fluazinam can be used to control the buckwheat stem canker disease during production by passing them down ditches.

关键词

荞麦/荞麦茎溃疡病/丝核菌/生物活性/化学防治

Key words

Buckwheat/Buckwheat stem canker/Rhizoctonia spp./Biological activity/Chemical control

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基金项目

现代农业(燕麦荞麦)产业技术体系(CARS-07-C-2)

云南省重大科技专项与重点研发计划(202202AE090020)

出版年

2024

作物杂志

中国作物学会中国农科院作物科学研究所

作物杂志

CSTPCD北大核心

影响因子：0.821

ISSN：1001-7283

参考文献量18

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