50% 烯酰吗啉与 53% 金雷多米尔-锰锌对白肋烟黑胫病的防控效果研究

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关键词白肋烟;黑胫病； 50% 烯酰吗啉； 53% 金雷多米尔-锰锌；经济性状中图分类号 S435.72 文献标志码A 文章编号 1007-7731（2026）05-0086-04DOI号10.16377/j.cnki.issn1007-7731.2026.05.020

Research on the control effects of 50% dimethomorph and 53% Ridomil Gold-MZ against blackshank disease ofburley tobacco

Quan Lin1Huang Yong1Xia Pengliang1Zhao Anmin1Xiang Xiuzhi1Liu Jun² （1Enshi Prefecture Company of Hubei Provincial Tobacco Company，Enshi 445OOo， China; ²Hubei Provincial Tobacco Company of China National Tobacco Corporation ，Wuhan 43oo3o， China）

Abstract To investigate the control efficacy of 50% dimethomorphand 53% Ridomil Gold-MZ againstblack shank of burley tobacco，Eyan No.1 was used as the test material，and 5 treatments were setup，including 50% dimethomorph （T1）， 53% Ridomil Gold-MZ （T2）， 50% dimethomorph +53% Ridomil Gold-MZ + 50% dimethomorph （T3）， 72.2% propamocarb （T4），and clear water as the control （CK）.The key growth stages including transplanting stage， vigorous growth stage，topping stageandmaturitystage wererecorded，andtheagronomic traits （maximum leaf length，leaf width and fectiveleaf number），disease incidenceand economic traitsof tobaccoplants were investigated.Theresultsshowed that except for slight diferences at therosulate stage，the other growth stages were basicallyconsistent among all treatments，andthefieldgrowthperiodwasalsoidentical，at105days.Aftertopping，thetobaccoplantsinT3hadlarger leavesand more effctive leaves.At1Odaysafterapplication，thedisease incidenceinT3 was significantlylower than that of other treatments （ P <0.05）; the disease incidence in T3 increased at 3O days after application，which was slightly higherthan thatof T2 butstillremainedatarelativelylowlevelcomparedwithother treatments.Thecured tobacco leaves in T2andT3 had higher yield，average price，outputvalue，as well as theproportion oftop-grade and mediumgrade tobacco.Comprehensively considering the resistance risk of dimethomorph andthe priceoffungicides，the fungicide combination of 50% dimethomorph +53% Ridomil Gold-MZ +50% dimethomorph （T3） is considered for the controlof tobacco black shank disease in tobacco production，and its eficacy remains to be further verified.

ywordsburley tobacco; black shank disease; 50% dimethomorph; 53% Ridomil Gold-MZ; economic tri

烟草黑胫病是烟草生产上的重要土传病害之一，由烟草疫霉菌（Phytophthoranicotianae）侵染烟株根茎部引起，在烟草农业生产中危害较重，部分发病严重田块可能造成绝收。（剩余3903字）