论文部分内容阅读
研究了不同龄期大黑鳃金龟Holotrichia oblita幼虫(蛴螬)的活动规律及其对6种农作物幼苗根部的取食趋性。大黑蛴螬的活动规律结果表明:各龄期大黑蛴螬均易趋向于幼苗根部寻找食物。采用双因素方差分析法研究取食时间和幼苗种类对大黑蛴螬取食趋性的影响。结果显示:除二龄外,一、三龄大黑蛴螬3 d后和6 d后在幼苗根部的虫量没有显著性差异;而在不同幼苗根部,各龄期大黑蛴螬的虫量均存在显著性差异。
The activities of larvae of Holotrichia oblita larvae at different ages and their feeding habits on the roots of six kinds of crops were studied. The rules of the activity of the big black grubs showed that the black grubs at all ages tended to find food in the roots of the seedlings. The influence of feeding time and seedling species on feeding tendency of Macaca fasciculata was studied by two-way ANOVA. The results showed that there was no significant difference in the root exudates of the first and third instars after 3 d and 6 d except for the second instar, while the number of the larvae in different age groups had no significant difference Significant difference.