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1976～1978年从长春、白城市郊田间病株分离到 Verticillium 共64株,其中产生黑色菌落的60株,白色菌落的4株,经过致病性、形态、梅干培养基上特性、温度、pH 值范围、营养和同功酶等测定。确定是 V.dahliae Klek.,并且有黑色和白色二种不同的类群或小种。1975～1982年用8种化学农药和4种生物农药筛选、小区试验和较大面积示范试验表明多菌灵和甲基托布津在苗期施药(每平方米药5克拌30斤土)或在移植期、定植期灌药防效都较好,前者小区平均防效为71.78%、较大面积示范平均为74.29%,并可增产一倍以上,后者小区平均防效71.33%,较大面积示范为61.16%。生物农药中公主岭霉素较好。多菌灵对 V.dahliae 敏感 5ppm 即有抑菌效果,施药后40天的幼苗体内多菌灵含量较多每株达44ppm。示范田中播期施药土移植期又灌根,在20天后即定值时仍测得幼苗内含有10ppm 以上的多菌灵。
From 1960 to 1978, 64 strains of Verticillium were isolated from Changchun and Baicheng suburbs. Among them, 60 were black colonies and 4 were white colonies. The pathogenicity, morphology, prune character, temperature, pH value Range, nutrition and isozyme determination. Determined to be V.dahliae Klek., And has two different taxa and races of black and white. From 1975 to 1982, eight kinds of chemical pesticides and four kinds of biological pesticides were screened. Community plots and large-area demonstration experiments showed that carbendazim and thiophanate-methyl were applied at the seedling stage (5 g per square meter of medicine mixed with 30 kg of soil) Or in the transplanting period, colonization irrigation control effect is better, the former community average control effect is 71.78%, a large area model average of 74.29%, and can increase more than doubled, the latter community average control effect of 71.33%, compared with the average Large-scale demonstration of 61.16%. Gongzhuling biopesticide better. Carbendazim is sensitive to V.dahliae 5ppm antibacterial effect, 40 days after application of the seedlings more carbendazim content per plant up to 44ppm. Demonstration of sowing date sowing soil transplanting and irrigation roots, 20 days after the set value is still measured when the seedlings contain more than 10ppm of carbendazim.