摘要： 研究结果表明：麦岩螨种群密度与其寿命、繁殖、迁逃等关系密切，随着种群密度的增加，麦岩螨卵的孵化率降低，初孵幼螨死亡率增加，雌成螨繁殖力下降，寿命缩短，扩散迁逃率增加，其危害密度为每株小麦20～40头及其以下。防治指标为：返青期百茎螨量1400头，危害指数为1%;拔节期百茎螨量6700头，危害指数为6.5%.
关键词:
麦岩螨,
种群密度效应,
防治指标,
危害指数
Abstract: A study on the effects of different population density of stone mite of Petrobia latens(Muller)on its longevity,propagation and migration.The results indicated that with the increase of population the density of Petrobia latens the hatchability of egg decreased propagative capability and longevity of female mite declined the death rate of larva and the migratory proportion of adult mite raised. The harmful density was 20-40 mites per wheat plant.The control standard was 1400 mites per 100 wheat stems turning green period and index of damage was 1.0% during turning green period and that is 6.5% respectively at that is 6700 at jointing stage.
Key words:
Stone mite,
Density dependent effect of population,
Control standard,
Index of damage
中图分类号:
韩桂仲, 刘顺通, 楚智鹏, 段爱菊, 原国辉, 段永兰. 麦岩螨种群密度效应及防治指标的研究[J]. 华北农学报, 1997, 12(1): 102-107. doi: 10.3321/j.issn:1000-7091.1997.01.021.
Han Guizhong, Liu Shuntong, Chu Zhipeng, Duan Aiju. A Study on Density dependent Effect of the Experimental Population and Control Standard of Petrobia latens(M.)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1997, 12(1): 102-107. doi: 10.3321/j.issn:1000-7091.1997.01.021.