摘要
松材线虫(Bursaphelenchus xylophilus)病在我国江苏南京、镇江、安徽马鞍山、和县和广东深圳等地普遍发生。江苏发生的面积达30余万亩,被害树种有黑松(Pinus thunbergii)、马尾松(P.massoniana)、湿地松(P.elliottii)、海岸松(P.pinaster)、黄松(P.thunbergiixp.massoniana)、千头赤松(P.densifloraxp.umbraculifera)。
By the test of pine wilt disease dead wood submerged in hot-water, exposed to high temperature, natural drying of dead wood and hot evaporation of vapour etc. . KT50's and the temperature and exposure time required for 100% mortality are reported by the different temperature treatment. The results showed that time/mortality relationships were determined for treatment of pine wood nematode (Bursaphetenchus xylophilus) and the vector of pine sawyer beetle (Monochamus alternatus) in the dead logs (average diameter is 15.99±2.36cm). The thermal death point of the nematodes is 45℃ when the dead logs were submerged in hot-water and its thermal death point is 50℃ while the died wood exposed to high temperature. The died logs submerged in hot-water is more effective than the high temperature treatment and others. The exposure times in notwater were significantly reduced as water temperature above 45℃ (the thermal death point)was increased. When pine wilt disease dead logs submerged in hot-water at 60℃ in large dimension pool and tank treated for 2.30±0.50 hours, the mortality of B.xylophilus, and the vector of M. alternatus,Shirahoshizo insidiosus and Blastophagus piniperda all reached 100%. The methodes of treatment of pine wilt disease died wood exposed to high temperature, drying of wood and hot evaporation of vapour for control of pine wood nematodes and its vectores also vere introduced.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1991年第2期179-185,共7页
Scientia Silvae Sinicae
关键词
松材线虫
媒介昆虫
热水水浴处理
Bursaphelenchus xylophilus
Vector insect
Submerged in hotwater treatment
Thermal death point
