DOI: 10.1111/ele.13819
论文题名: Pesticides do not significantly reduce arthropod pest densities in the presence of natural enemies
作者: Janssen A. ; van Rijn P.C.J.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 9 起始页码: 2010
结束页码: 2024
语种: 英语
中文关键词: biological control
; field experiments
; insecticides
; meta-analysis
; parasitoids
; pest control
; pest resurgence
; population dynamics
; predators
; transient dynamics
英文关键词: Arthropoda
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166854
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Janssen A.,van Rijn P.C.J.. Pesticides do not significantly reduce arthropod pest densities in the presence of natural enemies[J]. Ecology Letters,2021-01-01,24(9)