The effect of pymetrozine (Plenum WG-50^庐) on proboscis extension conditioning in honey bees (Apis mellifera: Hybrid var. Buckfast)

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• 作者：Charles I. Abramson^a ; ^{charles.abramson@okstate.edu} ; Michel B.C. Sokolowski^b ; Erika A. Brown^a ; Serge Pilard^c
• 关键词：Plenum WG-50® ; Pymetrozine ; Honey bees ; Proboscis conditioning
• 刊名：Ecotoxicology and Environmental Safety
• 出版年：2012
• 期刊代码：77_01476513
• 类别：env
• 出版时间：1 April, 2012
• 卷：78
• 期：Complete
• 页码：287-295
• 文件大小：412 K

摘要

Experiments are designed to examine the effects of pymetrozine (Plenum WG-50^庐), a recent systemic pesticide of the pyridine-azomethin family, on Pavlovian conditioning of harnessed foragers. In one set of experiments bees learned a task in which they associated a conditioned stimulus with feeding. A second set of experiments required the bees to learn a discrimination task. Within each experiment, bees received 5 渭l of sucrose only, the recommended field dose of Plenum^庐 (5 渭L of .3 g L^鈭?, .16 g L^鈭? of pymetrozine measured), or 100 times the field dose of Plenum^庐 WG 50 thirty minutes prior to training (5 渭L of 30 g L^鈭?, 14 g L^鈭? of pymetrozine measured). The Plenum^庐 WG 50 was diluted with .88 M sucrose to facilitate the drinking of the pesticide. In addition to varying the concentration, we also investigated the effect of Plenum^庐 WG 50 on bees confined to an observation hive and a hive located outside. The results indicated that prior exposure to Plenum^庐 WG 50 affected Pavlovian conditioning only when bees were exposed to 100 times the recommended dosage.