松萎蔫病是一种非常复杂的病害。据报道,松材线虫(Bursaphelenchus xylophilus)及其携带的细菌诱导了该病,但是对于细菌的的作用尚存争议。笔者筛选出杀细菌剂进行了温室和林间防治松萎蔫病的实验。利用每株3年生赤松(Pinus densiflora)注射3mg的恶喹酸,松萎蔫病防效达到71%。利用恶喹酸或阿维菌素及两者混合物对大约20年生赤松的试验表明,3种处理均显示了很高的防效。以上结果证明伴生细菌是诱导松萎蔫病的必要因素,对松萎蔫病可利用杀细菌剂或杀细菌剂与杀线剂混合物进行防控。 Pine wilt disease is a very complex disease. It has been reported that Bursaphelenchus xylophilus and the bacteria it carries induce the disease, but the role of bacteria is controversial. I screened the bactericide for greenhouse and forest control pine wilt disease experiments. Using 3 mg of oxolinic acid per 3-year-old Pinus densiflora, the control efficacy of wilt disease was 71%. Experiments with about 20-year old Pinus densiflora using either oxolinic acid or avermectin and a mixture of both showed that all three treatments showed very good control. The above results show that associated bacteria is necessary to induce pine wilt disease, pine wilt disease can be used to kill bactericides or bactericides and nematicide mixture for prevention and control.