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连续２ａ使用医用青霉素，防治杉苗猝倒病和赤枯病试验所得资料表明：在发病期间，１００ｍ￣２苗床，每次用８０万单位注射用青霉素钠１瓶，加水１０．０ｋｇ，喷洒杉苗，４月初揭去覆草后喷洒第１次，半月１次，连喷９次，防治效果比使用相同次数的６００倍液５０％敌克松粉剂或１０００倍液７０％甲基托布津可湿性粉剂提高２４％～４３％，苗高增长１４％～２２％，苗木地径增粗１３％～１９％，而防治成本分别降低２９．３０％～４５．５７％和５２．３４％～５６．５０％。
Continuous use of medical penicillin 2a, control fir seedling damping-off disease and the test data obtained from the experiment showed that: during the disease, 100m ~ 2 seedbed, each with 800,000 units of penicillin sodium injection 1 bottle, add water 10.0kg, spraying fir Miao, early April peeled off the grass after spraying the first 1 and a half months, and even spray 9 times, the control effect than the same number of 600 times the use of 50% anti-kraft powder or 1000 times the 70% thiophanate-methyl Wet powder increased by 24% ~ 43%, seedling height increased by 14% ~ 22%, seedling diameter increased by 13% ~ 19%, while the prevention and treatment costs decreased by 29.30% ~ 45.57% and 52.34% ~ 56 .50%.