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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Economic threshold</span></span>
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<p>In <a href="Integrated_pest_management" title="Integrated pest management">integrated pest management</a>, the <b>economic threshold</b> is the density of a <a href="Pest_(organism)" title="Pest (organism)">pest</a> at which a <a href="Pest_control" title="Pest control">control treatment</a> will provide an economic return.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p><p>An <b>economic Injury</b>is the insect's population level or extent of <a href="Crop_damage" class="mw-redirect" title="Crop damage">crop damage</a> at which the value of the crop destroyed exceeds the cost of controlling the pest.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Economic thresholds can be expressed in a variety of ways including the number of insects per plant or per square metre, the amount of leaf surface damage, etc. In many cases, thresholds have been established through scientific research. Because some combinations of pests and crops have not yet been studied, some thresholds are just educated estimates.
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<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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<li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">
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</style><cite id="CITEREFHigleyPedigo1996" class="citation book cs1">Higley, Leon G.; Pedigo, Larry P. (1996-01-01). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=bPlnEtdTgfQC&q=Economic+threshold"><i>Economic Thresholds for Integrated Pest Management</i></a>. U of Nebraska Press. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-0-8032-2363-9</bdi>.</cite></span>
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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFZalom2010" class="citation book cs1">Zalom, Frank G. (2010). "Chapter 8 - Pesticide Use Practices in Integrated Pest Management". <i>Hayes' Handbook of Pesticide Toxicology</i>. pp. <span class="nowrap">303–</span>313. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2FB978-0-12-374367-1.00008-2">10.1016/B978-0-12-374367-1.00008-2</a>. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>9780123743671</bdi>.</cite></span>
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