6种储粮害虫对不同颜色的趋性研究

在实验室内利用校正趋色法,研究我国6种储粮害虫对红色等6种颜色的趋性行为反应。结果表明,6种储粮害虫对不同颜色的趋性情况大多随时间的变化而变化,在特定的时间段内,赤拟谷盗、杂拟谷盗、米象、玉米象对不同颜色的行为反应存在显著性差异(P≤0.05),其中,红色、橙色、黑色对赤拟谷盗均有明显的引诱作用,诱集率最高分别为76.23%、39.55%、49.57%;红色、黑色对玉米象有明显的引诱作用,诱集率最高分别为38.48%、38.67%。嗜卷书虱和无色书虱对所测试6种颜色则大多表现出驱避性,其中,红色和紫色分别对嗜卷书虱、无色书虱有明显的驱避作用,驱避率最高分别为70.29%、54.46%。研究结果可为研发相应颜色诱捕器对储粮害虫进行诱捕监测提供参考。

Study on the tropism of six species of insect pests in stored grain to different colors

The tropism of six species of insect pests in stored grain to six kinds of colours was researched in laboratory by color correction.The results showed that the tropism of six species of insect pests in stored grain to different colors mostly changed with time,and the behavioral responses of the Tribolium castaneum(Herbst)、Tribolium confusum Jacquelin du Val、Sitophilus oryzae(linnaeus)、Sitophilus zeamais Motschulsky to different colors were significantly different within a specific period of time(P≤0.05).Red、orange and black had obvious attracting effect on Tribolium castaneum(Herbst),with the highest trapping rates of 76.23%、39.55%、49.57%;Red and black had obvious attracting effect on Sitophilus zeamais Motschulsky,with the highest trapping rates of 38.48%、38.67%.The Liposcelis bostrychophila Bodonnel and Liposcelis decolor(Pearman)showed evasiveness to the most of the six colors tested.Red and purple had evident evasive effects on the Liposcelis bostrychophila Bodonnel and Liposcelis decolor(Pearman),with the highest evasive rates of 70.29%and 54.46%.The results can provide reference for the development of color traps to trap and monitor pests in stored grain.