国外松温床育苗棚期猝倒病的防治周尢马采用两段温床育芽移栽的国外松苗，在棚期里，由于种子、土壤（或沙）消毒不严，棚内温度过高或土壤湿度过大等多种原因，极易发生摔倒病，造成苗木在短期内大量死亡，危害严重，其防治方法如下：（１）以预防为主，可用０．５—１％... Foreign Song Wen bed nursery shed shedding disease prevention and control weeks Yuma using two hotbeds nursery transplanting seedlings in the shed period, due to seed, soil (or sand) lax disinfection, greenhouse temperature is too high or soil Humidity and other reasons, prone to fall disease, resulting in a large number of seedlings died in a short time, endangering its prevention and treatment as follows: (1) to prevent the main, available 0.5-1% ...