Host plants influence female oviposition and larval performance in West Indian sweet potato weevils Euscepes postfasciatus (Coleoptera: Curculionidae)
Host plants influence female oviposition and larval performance in West Indian sweet potato weevils Euscepes postfasciatus (Coleoptera: Curculionidae)
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寄主植物影响西印度甘薯象甲 Euscepes postfasciatus 的雌性产卵和幼虫表现（鞘翅目：象甲科）
DOI：
10.1007/s13355-017-0535-7
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发表时间：
2017
影响因子：
1.3
通讯作者：
Tatsuta Haruki
中科院分区：
文献类型：
--
作者：
Tsurui-Sato Kaori;Kumano Norikuni;Honma Atsushi;Matsuyama Takashi;Haraguchi Dai;Teruya Kiyohito;Toyosato Tetsuya;Tatsuta Haruki
Euscepes postfasciatus (Fairmaire) 是甘薯 (Ipomoea batatas) 的入侵害虫，也寄生于 Ipomoeagenus 的其他野生寄主植物上。 E．人口密度后筋膜痉挛有时会更大。比 Ipomoea indica (Burm. f.) 多。我们调查了 I 的可取性。 pes-capraeas 的寄主植物。就生殖和发育潜力而言，后成瘾。雌性在 I 上产卵较少。 pes-caprae，其幼虫的羽化较 onI 延迟。此外，I 期幼虫生长速度较慢。 Pes-capraethan onI。籼稻。这些结果表明我。山羊并不总是产卵和早期发育阶段生长速度的首选宿主。然而，发育初期后的幼虫存活率明显优于 I。 Pes-capraethan onI。目前的模拟研究表明，E. indica 的种群密度。后迷恋 I. pes-caprae 压倒了我。代代相传。比较两种野生寄主植物物种，I. pes-caprae 胜过 I。籼稻相对于总人口增长，但再生产相对于I。印度可能有利于新栖息地的殖民化。
Euscepes postfasciatus(Fairmaire) is an invasive pest of the sweet potato (Ipomoea batatas) and is also parasitic to other wild host plants of theIpomoeagenus. The population density ofE. postfasciatusis sometimes greater inIpomoea pes-capraeL. than inIpomoea indica(Burm. f.). We investigated the desirability ofI. pes-capraeas a host plant forE. postfasciatusin terms of reproductive and developmental potential. Females laid fewer eggs onI. pes-caprae, and the eclosion of their larvae was delayed compared with onI. indica.Furthermore, the larval growth rate was slower onI. pes-capraethan onI. indica. These results suggest thatI. pes-capraeis not always the preferred host for egg laying and growth rate in the early developmental stages. However, the larval survival rate after the initial period of development was markedly better onI. pes-capraethan onI. indica.The present simulation study demonstrated that the population density ofE. postfasciatusonI. pes-capraeoverwhelmed that onI. indicaover generations. Comparing the two wild host plant species,I. pes-capraeoutweighsI. indicawith respect to total population growth, but reproduction onI. indicamay be advantageous for the colonization of the new habitat.