饵木诱集新渡户树蜂试验初报

Brief Report on Luring and Collecting Sirex nitobei by Trap Log

以新伐油松(衰弱树)作为饵木,在北京香山公园从海拔、坡度等不同的立地条件下选取6处林地作为饵木设置地,对饵木诱集新渡户树蜂效果进行了研究。结果表明:饵木诱集新渡户蜂效果较为明显,饵木上平均诱集3.9只.m-2。海拔越高处诱集到的树蜂数量越多,饵木的表面积与诱集的数量无显著相关,同时树蜂多集中在中午前后交尾产卵。诱集到的树蜂多集中在在9月中旬至10月初且多聚集在饵木向阳面。饵木的摆设方式、温湿度的高低、降雨等因素也对饵木诱集的效果有影响。

Taking Chinese pine as trop lag,selecting six woodlands as experimental field for trop lag from different sea level and slope condition in Beijing Fragrant Hills Park,the effect of luring and collecting sirex nitobei by trap lag was studied.The results showed that the luring and collecting effect was obviously,there were 3.9 sirex nitobei per square meters on average,and the higher the height,the more the number of trapped pest.But there was no relationship with the surface area of the trap log and the number of collecting sirex nitobei.Sirex nitobei generally mating lay eggs around noon.Most trapped sirex nitobei was gathering between mid Sep to early Oct,and most concentrating at positive side of trop log.The display mode of trap log,temperature and moisture and rainfall all could affect the luring and collecting effect.