nematode infections/pinus

BACKGROUND Pine wilt disease is caused by the pine wood nematode, Bursaphelenchus xylophilus, which threatens pine forests and forest ecosystems worldwide and causes serious economic losses. In the 40 years since the pathogen was identified, the physiological changes occurring as the disease

The effect of wound, wound + water, wound + Bursaphelenchus xylophilus culture filtrate, or wound + lethal B. xylophilus doses on the assimilation and translocation of (1)C by 8-month-old Pinus sylvestris seedlings was tested. In two separate experiments, pine seedlings were exposed to 28.35 muCi of

The effect of temperature on pine wilt development in Scots pine (Pinus sylvestris) was examined in three experiments. Container-grown pines (4-6 years old) inoculated with 1,500 Bursaphelenchus xylophilus were incubated at constant temperatures in growth chamber for 8 weeks, then at a temperature

Mature trees of eastern white, jack, Scotch, and shortleaf pines were inoculated with 25,000-34,000 pinewood nematodes, Bursaphelenchus xylophilus, isolated from infected Scotch pines in Missouri. Equal numbers of trees of each species inoculated with distilled water served as controls. Nine of