The Control Effect of 20 Jinggangmycin SP against Rice Sheath Blight Rhizoctonia solani

摘要

Jinggangmycin soluble powder(SP) is a new fungicide formulation. It is excellent for its high concentration, less dosage, low cost. But this new formulation has never before been reported. The author does a field trial for control of the rice sheath blight in Lianzhou city, Guangdong province in June 2000. The result shows the control effect of 150g/hm~2, 750 g/hm~2 of 20% Jinggangmycin SP was 53.08%, 75.03% at 10 days after treatment. The Control effect of 23% thiflzamide SC at dosage of 225 mL/hm~2 was 77.43%. This demonstrates that the control effect of 50 g/hm~2 of 20% Jinggangmycin SP is much higher than that of 30 g/hm~2 , and is equivalent to that of 15 mL/hm~2 of 23% Thifluzamide SC. As a result, it is suitable at the dosage of 750 g/hm~2.