Aphid response to vegetation diversity and insecticide applications

被引：10

作者：

Banks, JE

Stark, JD

机构：

[1] Univ Washington, Tacoma, WA 98402 USA

[2] Washington State Univ, Puyallup Res & Extens Ctr, Dept Entomol, Puyallup, WA 98371 USA

来源：

AGRICULTURE ECOSYSTEMS & ENVIRONMENT | 2004年 / 103卷 / 03期

关键词：

aphids; habitat heterogeneity; imidacloprid; weed intercrup;

D O I：

10.1016/j.agee.2003.11.005

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

A field experiment was conducted to determine the effects of vegetation diversity and pesticide disturbance on insect herbivore populations in a broccoli agroecosystem. Varying concentrations of the selective insecticide imidacloprid were applied to patches of broccoli surrounded by bare ground or weedy vegetation during one growing season in western Washington (USA). Aphids responded to an interaction between vegetation diversity and pesticide concentration, and their response varied as a function of time after pesticide disturbance. These results suggest that simplistic, linear predictions of the effects of chemical disturbance and natural enemies on insect herbivore populations will not be forthcoming. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：595 / 599

页数：5

共 27 条

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