Controlling an insecticide-resistant bollworm in West Africa
Controlling an insecticide-resistant bollworm in West Africa
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DOI：
10.1016/j.agee.2004.11.006
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发表时间：
2005-05-30
影响因子：
6.6
通讯作者：
Fournier, D
中科院分区：
文献类型：
--
作者：
Martin, T;Ochou, GO;Fournier, D
棉花是西非最重要的经济作物之一，对平均耕种一公顷土地的约200万小农的收入贡献了一半以上。棉花受到许多害虫的侵害，特别是棉铃虫，尽管西非增加了杀虫剂的使用，但棉铃虫在1998年的种群密度很高，导致产量下降。建立了一个包括研究、推广、棉花生产和化学公司在内的棉花网络，以预防和管理对杀虫剂的抗药性。在国家棉花公司提供的推广服务的帮助下，大多数西非农民迅速采用了杀虫剂抗性管理战略。在接下来的四年中，采用IRM对控制棉铃虫种群产生了积极影响，导致总体产量增加，但保护成本增加了25%。(c) 2004 Elsevier B.V.版权所有
Cotton is one of the most important cash crops in West Africa, contributing for more than half the income of some two million small-scale farmers cultivating on average about one hectare land. Cotton is being attacked by many pests, the cotton bollworm Helicoverpa armigera in particular, that developed high population densities in 1998 leading to yield reductions despite increased insecticide use in West Africa. A cotton network involving research, extension, cotton producing and chemical companies was created to prevent and manage resistance to insecticides. An insecticide resistance management (IRM) strategy was rapidly adopted by most West African farmers with the assistance of the extension services provided by the national cotton companies. The adoption of IRM over the next four years had a positive impact on the control of H. armigera populations leading to overall yield increases, however, with a 25% increase in protection costs. (c) 2004 Elsevier B.V. All rights reserved.