Inhibition Effect and Field Control Effect of Different Fungicides on Tobacco Target Spot
[Objective] The aim was to screen out effective fungicides on tobacco target spot.[Method] Control effects of 12 kinds of fungicides against tobacco target spot were studied through laboratory inhibition test and field test.[Result] The laboratory test showed that 10% Jinggangmycin aqueous solutions and 20% Trifluzamide suspension and other 7 fungicides had excellent effect against Rhizoctonia solani AG-3,the growth of mycelium was inhibited.The field control effect results showed that the relative control effect of 10% Jinggangmycin aqueous solutions and 20% Trifluzamide suspension concentrate were both above 70%.[Conclusion] The 10% Jinggangmycin aqueous solutions and 20% Trifluzamide suspension concentrate could be used to control tobacco target spot.