The "necessary extent" of pesticide use -: Thoughts about a key term in German pesticide policy
The "necessary extent" of pesticide use -: Thoughts about a key term in German pesticide policy
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DOI：
10.1016/j.cropro.2007.06.006
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发表时间：
2008-03-01
期刊：
影响因子：
2.8
通讯作者：
Gerowitt, Baerbel
中科院分区：
文献类型：
--
作者：
Buerger, Jana;de Mol, Friederike;Gerowitt, Baerbel
德国植物保护法要求农民在必要的范围内限制农药的使用。在这篇文章中，我们已经开发了一个理论框架，决定农药的使用。我们研究了三种不同的方法来解释控制作物上的害虫“需要”多少农药：（1）当发现害虫或认为必要的预防性治疗时，以推荐剂量使用产品，（2）通过调整剂量，阈值等优化农药使用以节省经济成本，（3）通过改变种植系统以降低害虫风险来最大限度地减少农药需求。结合方法2和方法3可以达到最小的农药使用强度。在实践中，关于优化农药使用的信息需要进一步研究，以减少农艺控制措施效果的不确定性，无论是在经济方面还是在风险方面。(C)2007爱思唯尔有限公司保留所有权利。
German plant protection law demands farmers to limit the use of pesticides to a necessary extent. In this article, we have developed a theoretical framework on deciding on pesticide use. We look at three different ways of interpreting how much pesticide is "necessary" to control a pest on a crop: (1) using a product at the recommended dose when a pest is found or a precautionary treatment thought necessary, (2) optimising pesticide use for economic savings through adjusted doses, thresholds, etc. and (3) minimising pesticide need by altering the cultivation system to lower the risk of pests. The smallest pesticide use intensity can be reached by combining approaches 2 and 3.In practice, information on optimising pesticide use needs further research to reduce the uncertainty about the effects of agronomical control measures, both with respect to economics and risk. (C) 2007 Elsevier Ltd. All rights reserved.