佳多虫情测报灯和普通黑光灯对草地螟种群监测与防治效果比较

Comparison of Jiaduo automatic pest forecast light trap and blacklight trap for monitoring and trapping the meadow moth,Loxostege sticticalis

2004-2006年连续3年应用佳多自动虫情测报灯和传统普通黑光灯对草地螟种群监测和诱杀结果表明,两种诱虫灯均可有效监测草地螟种群动态,自动虫情测报灯对高密度草地螟种群诱杀效果显著,诱蛾量明显高于普通黑光灯的,而普通黑光灯对低密度种群诱杀较为有效。两种灯光诱捕器监测的草地螟种群动态变化趋势基本一致,每天诱蛾数呈极显著相关(r2004=0.973、r2005=0.990和r2006=0.981,p<0.01),但黑光灯下草地螟种群始见期较早而终见期较晚。两种灯下诱捕的草地螟雌蛾数均大于雄蛾数,但灯光诱捕器之间诱捕的草地螟雌雄性比差别不大。

A comparison of moth catches of the meadow moth Loxostege sticticalis using Jiaduo automatic pest forecast light trap and blacklight trap was made at Kangbao county in Hebei Province from 2004 to 2006. The results showed that both traps could monitor the population dynamics of Loxostege sticticalis effectively. However, there are different trapping effects between the two traps, with Jiaduo automatic pest forecast light trap being more effective at high than at low moth density, and the moth catches with Jiaduo automatic pest forecast light traps were much more than those in blacklight traps. There were significant correlation between the moth catches by the two traps in different years （r2004 =0. 973, r2005 =0. 990 and r2006 =0. 984, p〈0. 01）. However, the date of the earliest moth catches by blacklight traps were much earlier, while the latest were much later, than that by Jiaduo automatic pest fore- cast light traps, respectively. Female moths trapped in both traps were much more than males although there were no significant differences of sex ratio between the two light traps. The uses of the two light traps in relation to monitoring and control of Loxostege sticticalis were reviewed.