›› 2004, Vol. 47 ›› Issue (1): 135-140.

• 研究论文 • 上一篇    

湖北高海拔地区性信息素对小菜蛾的诱捕和防治效果

王香萍1, 张钟宁1*, 雷朝亮2, 赵毓朝3, 吴旦旭3   

  • 出版日期:2004-02-20 发布日期:2004-02-20

Mass trapping and control efficacy on the diamondback moth,Plutella xylostella (L.) with synthetic sex pheromone lures at high altitudes in Hubei

WANG Xiang-Ping1, ZHANG Zhong-Ning1*, LEI Chao-Liang2, ZHAO Yu-Chao3, WU Dan-Xu3   

  • Online:2004-02-20 Published:2004-02-20
  • Contact: ZHANG Zhong-Ning

摘要: 2002年应用性诱剂对海拔1 200 m山区甘蓝田小菜蛾的发生及防治进行了研究。在第一茬蔬菜生长期有2个诱蛾高峰,诱蛾量(头/盆)分别为11.7±2.4和9.2±1.0;第二茬蔬菜生长期有3个诱蛾高峰,诱蛾量(头/盆)分别为70.9±8.0、16.1±2.5和11.1±1.9。应用性诱剂诱捕山区甘蓝田小菜蛾时,第一茬田间蛾密度与单盆诱捕量相关性不显著,而第二茬菜生长期田间蛾密度与单盆诱蛾量相关性显著(y=0.0116x+0.1614, r=0.9213, P=0.0011)。性诱剂在光期与暗期都可诱到小菜蛾雄虫, 没有明显的诱蛾高峰。应用性诱剂可以使菜田的农药使用减少3~5次,降低田间子代幼虫密度。

关键词: 小菜蛾, 甘蓝, 性诱剂, 诱捕, 防治效果

Abstract: The effects of synthetic sex pheromone lures in controlling the diamondback moth, Plutella xylostella (L.) (DBM) were assayed at high altitudes(about 1 800 m) in Hubei in 2002. The results showed that there were two peaks in first crop of cabbage, with moth catches being 11.7±2.4, and 9.2±1.0 per trap, respectively; in second crop of cabbage there were three peaks, with the moth catches being 70.9±8.0, 16.1±2.5, and 11.1±1.9 per trap, respectively. In the second crop, the correlation between moth density and moth catches per trap was significant, y=0.0116x+0.1614 (r=0.9213, P=0.0011). Use of synthetic sex pheromone lures could decrease the number of DBM moths and reduce insecticide applications.

Key words: Plutella xylostella, cabbage, synthetic sex pheromone lure, mass trapping, control efficacy