Institute of Plant Protection Department of Applied Entomology, Warsaw Agricultural University, 02-766 Wanszawa, 166, Nowoursynowska, Poland.
J Chem Ecol. 1985 Apr;11(4):453-63. doi: 10.1007/BF00989556.
The study was conducted to determine how various factors, including learning, influence the host-selection behavior of the larval parasitoid Cotesia (=Apanteles)marginiventris (Cresson). Frass, silk, and feeding damage fromSpodoptera frugiperda (J.E. Smith) larvae elicited visits and antennal examinations by females of the parasitoid. Learning played a role in the effective response to these stimuli in that previous contact experience with hosts and/or chewed leaves, exuviae, frass, or hemolymph significantly enhanced the response of the parasitoid. Previous contact with host plants alone did not improve the responses. Experienced parasitoids were more active and spent less time at rest than inexperienced parasitoids. Previous experience was also found to be of significant importance in the ability of the parasitoid to discriminate between parasitized and unparasitized host larvae.
本研究旨在确定包括学习在内的各种因素如何影响幼虫寄生蜂 Cotesia（= Apanteles）marginiventris（Cresson）的宿主选择行为。玉米穗螟（Spodoptera frugiperda（J.E. Smith））幼虫的粪便、丝和取食损伤会引起寄生蜂雌性个体的访问和触角检查。学习在对这些刺激的有效反应中起着作用，因为与宿主和/或咀嚼过的叶子、蜕皮、粪便或血液的先前接触经验显著增强了寄生蜂的反应。单独与宿主植物接触并不会提高反应。有经验的寄生蜂比没有经验的寄生蜂更活跃，休息时间更少。研究还发现，寄生蜂区分已寄生和未寄生宿主幼虫的能力也与先前经验有关。
