This indicated that the resin excreting speed of pines was negatively correlated with disease resistance to Bursaphelenchus xylophilus. 因此，树干泌脂速度或树脂含量可能是评价松树对松材线虫病抗性的重要性状之一。
Besides, the trace observations on the amount of B. xylophilus into pine twigs revealed that the peak period of nematode transmission advanced in higher temperatures. 通过对松褐天牛取食传入松枝的松材线虫量的追踪记录发现，随着温度的升高，传播线虫的高峰时段随之提前。
