This study was carried out on the ability of predatory thrips Scolothrips longi- cornis Priesner to feed on 2 phytoseiid species and vice versa. Also the effect of predation of Neoseiulus californicus （McGregor） on ...This study was carried out on the ability of predatory thrips Scolothrips longi- cornis Priesner to feed on 2 phytoseiid species and vice versa. Also the effect of predation of Neoseiulus californicus （McGregor） on Typhlodromus bagdasarjani Wainstein and Aru- tunjan and vice versa was evaluated. The larvae, prepupae, and pupae of thrips and the eggs, larvae, and protonymphs of phytoseiids were selected as intraguild prey. The in- traguild predation （IGP） among S. longicornis and 2 phytoseiid species was unidirectional and in favor of phytoseiids, i.e., S. longicornis was not able to feed on larval stages of 2 phytoseiids. However, N. californicus and T. bagdasarjani fed on the 1st instar larvae （1.39 and 0.80 per day）, 2nd instar larvae （0.87 and 0.55 per day）, prepupae （0.51 and 0.48 per day）, and pupae of thrips （0.51 and 0.49 per day, respectively）. Both phytoseiids fed on eggs, larvae, and protonymphal stages of each other. Females of N. californicus con- sumed more phytoseiid larvae （2.49 per day） than T. bagdasarjani, which consumed 1.08 N. californicus larvae per day. When Tetranychus urticae was presented as an extraguild prey, intensity oflGP between 2 species ofphytoseiids and on larval stages ofS. longicornis reduced significantly. Therefore, it is concluded that （i） IGP existed among the 3 examined species and lack of feeding of S. longicornis on 2 phytoseiid species can be justified by its feeding type （monophagy）, （ii） N. californicus was much more prone to IGP than was T. bagdasarjani.展开更多
为全面客观呈现国内外加州新小绥螨研究现状,分析总结当前研究重点和未来发展方向.本文基于中国知网CNKI和Web of Science核心合集数据库数据,利用CiteSpace软件开展了加州新小绥螨文献计量学研究.国内外有关加州新小绥螨的研究报道总...为全面客观呈现国内外加州新小绥螨研究现状,分析总结当前研究重点和未来发展方向.本文基于中国知网CNKI和Web of Science核心合集数据库数据,利用CiteSpace软件开展了加州新小绥螨文献计量学研究.国内外有关加州新小绥螨的研究报道总体呈增长趋势.虽国内相关研究起步较晚,但发展迅速,国内外均形成了多个较为稳定的研究团队.国内外研究内容相似,但侧重不同,主要研究内容为加州新小绥螨捕食能力、环境因素对加州新小绥螨影响、田间应用技术、人工替代食物饲养、药剂安全性评价、三级营养关系等.在药剂安全性评价及田间应用技术方面,国外相关研究更加深入.未来我国加州新小绥螨研究可从人工饲料、三级营养关系、抗药性及抗性机理等方面深入开展.展开更多
文摘This study was carried out on the ability of predatory thrips Scolothrips longi- cornis Priesner to feed on 2 phytoseiid species and vice versa. Also the effect of predation of Neoseiulus californicus （McGregor） on Typhlodromus bagdasarjani Wainstein and Aru- tunjan and vice versa was evaluated. The larvae, prepupae, and pupae of thrips and the eggs, larvae, and protonymphs of phytoseiids were selected as intraguild prey. The in- traguild predation （IGP） among S. longicornis and 2 phytoseiid species was unidirectional and in favor of phytoseiids, i.e., S. longicornis was not able to feed on larval stages of 2 phytoseiids. However, N. californicus and T. bagdasarjani fed on the 1st instar larvae （1.39 and 0.80 per day）, 2nd instar larvae （0.87 and 0.55 per day）, prepupae （0.51 and 0.48 per day）, and pupae of thrips （0.51 and 0.49 per day, respectively）. Both phytoseiids fed on eggs, larvae, and protonymphal stages of each other. Females of N. californicus con- sumed more phytoseiid larvae （2.49 per day） than T. bagdasarjani, which consumed 1.08 N. californicus larvae per day. When Tetranychus urticae was presented as an extraguild prey, intensity oflGP between 2 species ofphytoseiids and on larval stages ofS. longicornis reduced significantly. Therefore, it is concluded that （i） IGP existed among the 3 examined species and lack of feeding of S. longicornis on 2 phytoseiid species can be justified by its feeding type （monophagy）, （ii） N. californicus was much more prone to IGP than was T. bagdasarjani.
文摘为全面客观呈现国内外加州新小绥螨研究现状,分析总结当前研究重点和未来发展方向.本文基于中国知网CNKI和Web of Science核心合集数据库数据,利用CiteSpace软件开展了加州新小绥螨文献计量学研究.国内外有关加州新小绥螨的研究报道总体呈增长趋势.虽国内相关研究起步较晚,但发展迅速,国内外均形成了多个较为稳定的研究团队.国内外研究内容相似,但侧重不同,主要研究内容为加州新小绥螨捕食能力、环境因素对加州新小绥螨影响、田间应用技术、人工替代食物饲养、药剂安全性评价、三级营养关系等.在药剂安全性评价及田间应用技术方面,国外相关研究更加深入.未来我国加州新小绥螨研究可从人工饲料、三级营养关系、抗药性及抗性机理等方面深入开展.
