灯光诱杀对蔗龟种群的控制作用研究

Study on the Application of Light Trapping for Controlling Sugarcane Beetles

初步研究了灯光诱杀对蔗龟成虫的诱杀效果、对蔗龟混合种群数量动态的影响以及对蔗龟危害率的影响等。结果表明,突背蔗龟(Alissonotum impressicolle Arrow)、光背蔗龟(Alissonotum impressicolle Burmeister)和大头霉鳃金龟(Microcrichia cephalotes Burmeister)是广西南宁的优势种,发生高峰期为4月中旬至6月中旬。在进行灯光诱杀的核心试验区,金龟子混合种群数量在7月以后下降了66.46%～71.58%,金龟子幼虫对甘蔗的危害率下降到4.75%～9.85%,与对照区相比差异显著。

This paper makes research on the effectiveness of light trapping for controlling sugarcane beetles, the influence on the mixed population dynamics and the damage rate of sugarcane beetles . The result shows that, Alissonotum Impressicolle Arrow , Aissonotum Ipressicolle Burmeister and Microcrichia Cephalotes Burmeister are the dominant species in Nanning, Guangxi, and their fastigiums are from the middle of April to the middle of June. In the core testing region, the mixed population quantities of beetles decrease from 66.46% to 71.58% , and the damage rate of the beetle larva to the sugarcane decreases from 4.75% to 9.85%, the effectiveness is notable compared with that of the contrast area.