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DOI	10.1111/ele.13819
	Pesticides do not significantly reduce arthropod pest densities in the presence of natural enemies
	Janssen A.; van Rijn P.C.J.
发表日期	2021
ISSN	1461023X
起始页码	2010
结束页码	2024
卷号	24 期号:9
英文摘要	Chemical pesticides remain the main agents for control of arthropod crop pests despite increased concern for their side effects. Although chemical pesticide applications generally result in short-term decreases of pest densities, densities can subsequently resurge to higher levels than before. Thus, pesticide effects on pest densities beyond a single pest generation may vary, but they have not been reviewed in a systematic manner. Using mathematical predator–prey models, we show that pest resurgence is expected when effective natural enemies are present, even when they are less sensitive to pesticides than the pest. Model simulations over multiple pest generations predict that pest resurgence due to pesticide applications will increase average pest densities throughout a growing season when effective natural enemies are present. We tested this prediction with a meta-analysis of published data of field experiments that compared effects of chemical control of arthropod plant pests in the presence and absence of natural enemies. This largely confirmed our prediction: overall, pesticide applications did not reduce pest densities significantly when natural enemies were present, which concerned the vast majority of cases. We also show that long-term pesticide effectiveness is underreported and suggest that pest control by natural enemies deserves more attention. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
关键词	biological control field experiments insecticides meta-analysis parasitoids pest control pest resurgence population dynamics predators transient dynamics
英文关键词	Arthropoda
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204413
作者单位	Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands; Department of Entomology, Federal University of Viçosa, Minas Gerais, Brazil
推荐引用方式 GB/T 7714	Janssen A.,van Rijn P.C.J.. Pesticides do not significantly reduce arthropod pest densities in the presence of natural enemies[J],2021,24(9).
APA	Janssen A.,&van Rijn P.C.J..(2021).Pesticides do not significantly reduce arthropod pest densities in the presence of natural enemies.Ecology Letters,24(9).
MLA	Janssen A.,et al."Pesticides do not significantly reduce arthropod pest densities in the presence of natural enemies".Ecology Letters 24.9(2021).