高压脉冲电流对松材线虫活力和繁殖的影响

Effect of High-Voltage Pulse Current on the Vitality and Reproduction of Pine Wood Nematode

研究高压脉冲电流对松材线虫活力和繁殖的影响。结果表明:高压脉冲电流可杀死松材线虫,能抑制松材线虫的迁移扩散能力,脉冲宽度越大,脉冲个数越多,电处理间隔越短,对松材线虫活力影响越强,脉冲宽度和电处理间隔为影响松材线虫活力的主要因子;高压脉冲电流可抑制松材线虫繁殖,脉冲宽度越大,电处理时间越长,对松材线虫的繁殖抑制作用越强;不同龄期的松材线虫对高压脉冲电流的反应不同,成虫对高压脉冲电流的抗性更强,尤以雌虫更具抗性。

The effect of high-voltage pulse current on the vitality and reproduction of pine wood nematode was investigated. The results showed that high-voltage pulse current could kill pine wood nematode and inhibit the migration and diffusion capacity of pine wood nematode, the wider the pulse width and the more number pulse and the shorter electric treatment interval, the better the effect of high-voltage pulse current on the vitality of pine wood nematode, the main impact factors were pulse width and electric treatment interval ; high-vohage pulse current could inhibit the reproduction capacity of pine wood nematode, the wider the pulse width and the longer treatment time, the better the effect of high-voltage pulse current on the reproduction of pine wood nematode. The reaction of different instars of pine wood nematode to high-voltage pulse current were different, the adult was more resistant to high-voltage pulse current than the larvae, especially the female.