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采用室内观察的方法,用HollingⅡ型圆盘方程进行拟合,研究了智利小植绥螨雌成螨和若螨在不同的温度下对土耳其斯坦叶螨成螨的功能反应,以及智利小植绥螨个体之间捕食的干扰反应,为智利小植绥螨人工繁殖以及在田间释放提供理论依据。结果表明,各个温度下智利小植绥螨雌成螨和若螨对土耳其斯坦叶螨成螨的反应均属于HollingⅡ型。智利小植绥螨雌成螨和若螨对土耳其斯坦叶螨成螨的最大捕食量分别为16.13头/d和1.07头/d,瞬时攻击系数分别为:0.801和0.115,捕食能力(a/Th值)随温度的升高而增大,27℃达到最大;研究发现在土耳其斯坦叶螨密度一定时,智利小植绥螨个体之间存在干扰和竞争作用,平均捕食量随着捕食螨密度的增加而减小。在防治土耳其斯坦叶螨的过程中,应考虑智利小植绥螨雌成螨和若螨的捕食能力差别以及其自身存在的干扰作用,以混合螨态进行田间释放,以达到持续防治土耳其斯坦叶螨的效果。
The indoor observation method was used to fit Holling Ⅱ circular disc equation to study the functional response of adult mites and nymphs of M. phytosome to M. turkestani mites under different temperatures, The predatory disturbance reaction provides a theoretical basis for the artificial propagation of phytoplankton in Chile and its release in the field. The results showed that the responses of adults and mites to M. turkestani mites were Holling Ⅱ at all temperatures. The maximum predation rates of adult mites and nymphs on T. turkestani were 16.13 and 1.07, respectively, and the instantaneous attack coefficients were 0.801 and 0.115, respectively. The predation ability (a / Th) With the increase of temperature, it reaches the maximum at 27 ℃. It is found that there is interference and competition between the individuals of Chilean phytoseiidae when the density of Tetranychus urticae is constant, and the average predation amount increases with the increase of the density of predatory mites Decrease In the process of prevention and treatment of Tetranychus urticae, we should take into account the difference in the predatory ability of adult P. mites and P. nymphae and their own interference in Chilean mites, Mite effect.