Economics of desert locust control
Economics of desert locust control
复制标题
沙漠蝗虫防治的经济学
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Claudia A. Herok
中科院分区：
文献类型：
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作者：
S. Krall;Claudia A. Herok
摘要
荒漠蝗虫Schistocerca gregaria(Forskal)是一种流动性极强的害虫。蜂群行进数百公里的情况并不少见。沙漠蝗虫造成的破坏可能是毁灭性的，尽管由于昆虫的移动性，它从来不是均匀分布的。这使得准确确定作物损失变得极其困难。研究沙漠蝗虫的经济影响的尝试也遇到了一定的限制。不能进行微观经济计算，即使是在国民经济层面进行的宏观经济研究也不能得出许多结论。只有考虑到蝗虫跨越国界迁徙的区域研究才能产生真正有用的结果。这篇论文强调了目前的情况，在这种情况下，缺乏可靠的数字使成本效益计算成为一项困难的任务。本文试图以现有的种群和料斗带的数据、防治措施的成本和潜在危害为基础，以一种新的方法来衡量沙漠蝗虫防治的经济方面。还概述了收集数据可能采取的备份措施。
Summary
The desert locust, Schistocerca gregaria (Forskal), is an extremely mobile pest. It is not uncommon for swarms to travel hundreds of kilometres. Damage caused by desert locusts can be devastating, although — owing to the insect’s mobility — it is never uniformly distributed. This makes it extremely difficult to precisely ascertain crop losses. Attempts to study the economic impact of desert locusts also run up against certain limits. Microeconomic calculations cannot be performed, and even macroeconomic studies conducted at the level of the national economy do not permit many conclusions to be drawn. Truly useful results are only yielded by regional studies that take account of the locusts’ movements across national borders. This paper highlights the current situation, in which the lack of reliable figures makes cost-benefit calculations a difficult task. In this paper, an attempt is made to take available figures on swarms and hopper bands, the costs of control measures and potential damage as the basis for a novel approach to gauging economic aspects of desert locust control. Possible backup measures for collecting data are also sketched.