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八种供试菌和制霉菌素在平板拮抗测定中发现,23～16,49～10,绿色木霉,疣孢漆斑菌和制霉菌素对立枯丝核菌均有拮抗作用,并以23～16最明显。 苗期试验的结果表明,23～16,扩展青霉,49～10,绿色木霉防治以立枯丝核菌为主要病原的松苗猝倒病有较好的效果。23～16防效最佳,扩展青霉次之。 23～16防治松苗猝倒病的作用机制主要是阻止病原菌丝的入侵,其次是对已侵入的菌丝产生抑制作用。
Eight kinds of test bacteria and nystatin in the plate antagonistic assay found that 23 ~ 16,49 ~ 10, Trichoderma viride, Myceliophthora and Mystatin antagonistic Rhizoctonia solani antagonistic effect, and 23 ~ 16 most obvious. The result of the seedling test showed that the control effect of Penicillium expansum, 49-10 and Trichoderma viride against the damping-off disease of pine seedlings caused by Rhizoctonia solani was 23 ~ 16. 23 ~ 16 best control effect, followed by extended Penicillium. The mechanism of prevention and cure of pine seedling damping-off disease is to stop the invasion of pathogenic mycelium, followed by inhibition of mycelial intrusion.