The possibility of trophic transfer of neonicotinoid insecticides from crop plants to Pterostichus melanarius (coleoptera: Carabidae) via prey

Content Provider	Semantic Scholar
Author	Zhao, Sherry
Copyright Year	2013
Abstract	1. Neonicotinoids are the newest class of insecticides and there is ongoing research about their effects on beneficial species, including natural enemies. Because of their prevalence and variety of application methods, there are many different potential routes of exposure to non-target insects. Ground beetle Pterostichus melanarius L. is an important polyphagous predator of agricultural ecosystems and previous research has shown that this and other species of ground beetles are susceptible to neonicotinoids. 2. I conducted a simple experiment to test if toxicity from thiamethoxam, one of the principal neonicotinoids, can be transferred from black cutworms (Agrotis ipsilon), a target pest, to P. melanarius, a non-target predator, through predation. Black cutworms suffered high mortality rates after ingesting thiamethoxamtreated corn seedlings, but no significant mortality differences were seen between experimental groups of P. melanarius that had fed on dead toxified cutworms and the control groups. However, some indications of sub-lethal effects were seen in P. melanarius that had fed on toxic prey, from which the beetles recovered after
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Alternate Webpage(s)	https://honors.libraries.psu.edu/files/final_submissions/1945
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article