仿生杀菌剂20%BMOC WP的配方研制及抑菌毒力测定

为了将仿生杀菌活性化合物BMOC开发为一种新型农用杀菌剂,开展了BMOC可湿性粉剂研制,并用菌丝生长速率法测定了其对5种植物病原真菌的抑制作用。确定配方为BMOC原药20%,载体(A+高岭土,1∶4)70%,润湿剂(B+JFC,1∶1)5%,扩散剂NNO 4%,阿拉伯树胶1%,经检测,润湿时间小于1 min,悬浮率大于70%,各项指标均达到可湿性粉剂的要求。生测结果表明,20%BMOC可湿性粉剂对葡萄黑痘病菌和白菜黑斑病菌的抑菌作用高于75%的百菌清可湿性粉剂,对葡萄白腐病的EC50为7.427 mg/L。

Formulation and Antifungal Toxicity of Bionic Fungicide BMOC 20% WP

In order to develop the bionic fungicidal compound BMOC as a new fungicide,formulation of BMOC WP was studied,and its antifungal activities were tested by the mycelial growth rate method in this paper.Optimal formulation was determined as BMOC 20%,carrier(A+ kaolin,1∶4) 70%,wetting agent(B+JFC,1∶1) 5%,dispersing agent NNO 4% and gum arabic 1%.The quality detection results showed that the dispersion time was less than 1 min and the suspension rate was over 70%.Meanwhile the antifungal results indicated that BMOC 20% WP were stronger than commercial chlorothalonil 75% WP concerned with inhibition against scab of grape(Sphaceloma ampelinum) and black spot of cabbage(Alternaria brassicae).The EC50 of BMOC 20% WP against Coniothyrium diplodiella oniothyrium diplodiella was 7.427mg/L.