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<p>many types of plants. It is sometimes used as an <a href="page.php?w=herbicide">herbicide</a>, as a <a href="page.php?w=dye">dye</a> for cloth and <a href="page.php?w=ink">ink</a>s, and as a coloring agent for foods and <a href="page.php?w=cosmetics">cosmetics</a>.</p>

<p><big>History</big></p>
<p>The allelopathic effects of <a href="page.php?w=walnut">walnut</a> trees on other plants were observed as far back as the 1st century CE. Juglone itself was first isolated from <a href="page.php?w=black_walnut">black walnut</a> in 1856, and was identified as</p><p>
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