分别以菌丝生长法与孢子囊萌发法测定了氢氧化铜·烯酰吗啉混剂对辣椒疫霉菌(Phytophthora capsici Leonian)的毒力.结果表明,由上述2种药剂混合的5种不同配比的混剂对辣椒疫霉菌菌丝的生长有显著的抑制作用,对孢子囊萌发也有一定的抑制效果,其中以氢氧化铜∶烯酰吗啉为5∶3的混剂抑制作用最为显著,对菌丝生长抑制作用的共毒系数为267,对孢子囊萌发抑制作用的共毒系数为189. The virulence of copper hydroxide dimethomide mixture against Phytophthora capsici Leonian was determined by mycelial growth and spore germination methods, respectively. The results showed that the five different combinations of the two agents The mixture had a significant inhibitory effect on the growth of mycelium of Phytophthora capsici and a certain inhibitory effect on the germination of sporangium. Among them, the mixture with 5: 3 cupric hydroxide: dimethomorph had the most obvious inhibitory effect, The co-toxicity coefficient for inhibition of mycelium growth was 267, and the co-toxicity coefficient for inhibition of sporocyst germination was 189.