摘要
本文着重研究了4个线虫品系（苹果蠹蛾线虫SteinernemacarpocapsaeMK，A24和Beijing品系及长尾线虫S．longicaudumCB-2y品系）的线虫对不同树种──桃、杏树上桃红颈天牛幼虫的侵染力；不同剂量对桃红颈天牛幼虫的侵染力；不同施用方法──注射法和海绵法对桃红颈天牛幼虫的防治效果及不同贮藏期──1个月和一年对桃红颈天牛幼虫浸染力的影响。研究结果表明：昆虫病原线虫对桃、杏树上桃红颈天牛的侵染力无显著差异；30000～50000条／ml，剂量的MK，A24和Beijing3个品系线虫对桃、杏树内的桃红颈天牛具有较高的侵染力；多数供试线虫以注射法施用效果好于用海绵法施用；新贮藏的线虫对天牛的侵染力高于5℃条件下贮藏一年的线虫。本文还探讨了影响线虫侵染效果的因素及施用技术。
The infectious characters and different application technics of 4 strains nematodes had been studied to control Red-Necked Longicorn (RNL Aromia bungii Fald. ) of apricots and peaches. The results showed that there was no significant difference of nematodes against RNL between apricots and peaches. The dosages from 30 000 IJ/mL to 50 000 IJ/mI, of MK, A24 and Beijing strains (Steinernema carpocapsae) were more effective to control RNL on both apricot and peach trees. The CB-2y strain (S. longicaudum)however was not effective to RNL with the dosage of 30 000 IJ/mL. The way of injection was better than the way of filling nematode sponges. The infectivity of new havested nematodes was higher than those of stored for one year at 5℃.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1998年第1期17-21,共5页
Journal of China Agricultural University
基金
国际科学基金
北京市林业局资助
关键词
昆虫病原线虫
桃红颈天牛
生物防治
steinermema nematode
Aromia bungii
applying technics
biological control
