Li Ya-Ying, Zhang Guo-Hao, Tian Chuan-Bei, Liu Ming-Xiu, Liu Yi-Qing, Liu Huai, Wang Jin-Jun
Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China (
Collaborative Innovation Center of Special Plant Industry, Chongqing University of Arts and Sciences, Chongqing 402160, China (
J Econ Entomol. 2017 Jun 1;110(3):915-923. doi: 10.1093/jee/tox055.
The predatory mite Neoseiulus barkeri (Hughes) is a good biological control agent for many small sucking pests. We aimed to determine whether rearing long term on alternative prey versus target prey species affected the performance of N. barkeri. Therefore, we investigated the prey preference, life tables, and population parameters of N. barkeri between alternative prey Tyrophagus putrescentiae (Schrank) and three species of spider mites, Tetranychus urticae Koch, Panonychus citri (McGregor), and Eotetranychus kankitus Ehara. We found that N. barkeri preferred the tetranychid mites to the alternative prey. Between the tetranychid mites, the predator consumed more P. citri and E. kankitus than T. urticae. When reared on T. urticae, the total developmental time and longevity of N. barkeri were the longest, whereas the intrinsic rate of increase was the lowest, indicating that the biotic fitness of predatory mite preyed on target of T. urticae was higher than on alternative prey of T. putrescentiae. However, total developmental time, longevity, and fecundity did not differ between N. barkeri reared on T. putrescentiae and P. citri, although these parameters were higher than those for mites reared on E. kankitus, indicating that the predatory mite reared on T. putrescentiae may not be affected to control P. citri, and that coexistence of P. citri and E. kankitus may enhance the control efficiency of N. barkeri. Altogether, our results demonstrated that long-term feeding on the alternative prey T. putrescentiae did not affect the performance of the predatory mite N. barkeri on various target spider mites.
捕食螨巴氏新小绥螨（休斯）是许多小型刺吸式害虫的优良生物防治剂。我们旨在确定长期以替代猎物而非目标猎物物种饲养是否会影响巴氏新小绥螨的性能。因此，我们研究了巴氏新小绥螨在替代猎物腐食酪螨（施兰克）与三种叶螨（二斑叶螨科赫、柑橘全爪螨（麦格雷戈）和神泽氏叶螨江原）之间的猎物偏好、生命表和种群参数。我们发现，巴氏新小绥螨更喜欢叶螨而不是替代猎物。在叶螨之间，捕食者食用柑橘全爪螨和神泽氏叶螨的数量比二斑叶螨多。以二斑叶螨饲养时，巴氏新小绥螨的总发育时间和寿命最长，而内禀增长率最低，这表明捕食螨捕食二斑叶螨目标时的生物适合度高于捕食腐食酪螨替代猎物时的生物适合度。然而，以腐食酪螨饲养的巴氏新小绥螨与以柑橘全爪螨饲养的巴氏新小绥螨之间，总发育时间、寿命和繁殖力没有差异，尽管这些参数高于以神泽氏叶螨饲养的螨类，这表明以腐食酪螨饲养的捕食螨可能不会影响对柑橘全爪螨的防治，并且柑橘全爪螨和神泽氏叶螨的共存可能会提高巴氏新小绥螨的防治效率。总之，我们的结果表明，长期以替代猎物腐食酪螨为食不会影响捕食螨巴氏新小绥螨对各种目标叶螨的性能。
