Efficacy and physico-chemical properties of combined fungicides for control of rice blast and sheath blight
1987
Jeong, Y.H. | Kang, C.S. | Song, B.H. | Park, Y.S. (Rural Development Administration, Suwon (Korea R.). Agricultural Chemicals Research Inst.)
Seven mixture pesticides were formulated as the type of wettable power by combination of three fungicides; six combinations of tricyclazole-neoasozine with different ratio of their active ingredients and one combination of tricyclazole-flutolanil. Each of the mixtures was studied to know the control efficacy on rice blast and sheath blight in the field as well as physicochemical properties. All the combined formulations have a good wettability and maintained a good suspensibility in three degree hard water. Decomposition rates of active ingredients in the mixtures were different according to the chemical combi1264nations, however very stable under the condition of 50 deg C incubation. In any combinations, synergistic effect by interaction of the mixed chemicals did not appear on rice blast and sheath blight. The control effects of the mixed formulations were approximately equal as a single formulation in case of the same dosage per unit
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