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	<front>
		<journal-meta>
			<journal-id journal-id-type="publisher-id">pnut</journal-id>
			<journal-id journal-id-type="allenpress-id">pnut</journal-id>
			<journal-title>Peanut Science</journal-title>
			<issn pub-type="ppub">0095-3679</issn>
			<issn pub-type="active">0095-3679</issn>
			<publisher>
				<publisher-name>American Peanut Research and Education Society</publisher-name>
			</publisher>
		</journal-meta>
		<article-meta>
			<article-id pub-id-type="doi">10.3146/i0095-3679-16-1-6</article-id>
			<article-categories>
				<subj-group subj-group-type="heading">
					<subject>Articles</subject>
				</subj-group>
			</article-categories>
			<title-group>
				<article-title>Effect of Metalaxyl Plus PCNB or Metalaxyl Plus Tolclofos-methyl on Peanut Pod Rot and Soil Populations of <italic>Pythium</italic> spp. and <italic>Rhizoctonia solani</italic></article-title>
			</title-group>
			<contrib-group>
				<contrib contrib-type="author" xlink:type="simple">
					<name name-style="western">
						<given-names>A. B.</given-names><x xml:space="preserve"> </x>
						<surname>Filonow</surname>
					</name>
					<xref ref-type="corresp" rid="cor1">&ast;</xref><x xml:space="preserve"> and </x>
				</contrib>
				<contrib contrib-type="author" xlink:type="simple">
					<name name-style="western">
						<given-names>K. E.</given-names><x xml:space="preserve"> </x>
						<surname>Jackson</surname>
					</name>
				</contrib>
			</contrib-group>
			<author-notes>
				<fn fn-type="fn">
					<p><sup>1</sup>Contribution from the Oklahoma State University Agricultural Experiment Station. Journal Article 5496. Supported by an Oklahoma State Department of Agriculture Special Grant.</p>
				</fn>
				<fn fn-type="fn">
					<p><sup>2</sup>Assistant Professor and Assistant Extension Specialist, respectively, Department of Plant Pathology, Oklahoma State University, Stillwater, OK 74078.</p>
				</fn>
				<corresp id="cor1">&ast;Corresponding Author.</corresp>
			</author-notes>
			<pub-date pub-type="ppub">
				<month>1</month>
				<year>1989</year>
			</pub-date>
			<volume>16</volume>
			<issue>1</issue>
			<fpage>25</fpage>
			<lpage>32</lpage>
			<history>
				<date date-type="accepted">
					<day>19</day>
					<month>4</month>
					<year>1989</year>
				</date>
			</history>
			<permissions>
				<copyright-statement>American Peanut Research and Education Society</copyright-statement>
				<copyright-year>1989</copyright-year>
				<copyright-holder>American Peanut Research and Education Society</copyright-holder>
			</permissions>
			<related-article related-article-type="pdf" xlink:href="i0095-3679-16-1-6.pdf" xlink:type="simple"></related-article>
			<abstract>
				<title>Abstract</title>
				<p>Metalaxyl plus PCNB or metalaxyl plus tolclofos-methyl were field tested in 1985&ndash;1987 in Oklahoma for their effect on pod rot of Florunner and Spanco peanut caused by <italic>Pythium</italic> spp. and <italic>Rhizoctonia solani.</italic> Total a.i. (kg/ha) of metalaxyl and PCNB applied in 1985, 1986 and 1987 were 1.12 and 11.2, 1.12 and 11.2 and 0.92 and 7.40. respectively. Total a.i. (kg/ha) of metalaxyl plus tolclofos-methyl applied in 1986 and 1987 were 1.34 and 3.36 and 1.12 and 2.24, respectively. Fungicides reduced pod rot severity on both cultivars at 2&ndash;8 wks prior to harvest; at harvest, however, none of the reductions were significant (P&le;0.05). Yield increases were measured from 111&ndash;579 kg/ha, but few increases were significant (P&le;0.05). Fungicides generally reduced the number of Pythium propagules in soil at several sampling dates, but few of the reductions were significant (P&le;0.05). In 1986 and 1987 populations of <italic>Pythium</italic> spp. in soil peaked at 60 and 75 days, respectively, then declined. At these peaks treated soils generally had fewer Pythium propagules than nontreated soils. Populations of <italic>Pythium</italic> spp. were not significantly reduced at harvest. Populations of <italic>R. solani</italic> were highly variable over the seasons and control was erratic from year to year. In combination with metalaxyl, tolclofos-methyl was no more effective than PCNB in reducing pod rot or populations of <italic>R. solani.</italic> Populations of <italic>R. solani</italic> at harvest were not significantly (P&le;0.05) reduced by the fungicide combinations.</p>
			</abstract>
			<kwd-group>
				<title>Key Words</title>
				<kwd>Metalaxyl</kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd>pentachloronitrobenzene</kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd>tolclofos-methyl</kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd>soil fungicides</kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd>peanut pod rot</kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd><italic>Pythium</italic> spp</kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd><italic>Rhizoctonia solani</italic></kwd><x xml:space="preserve">; </x><x xml:space="preserve">, </x>
				<kwd><italic>Arachis hypogaea</italic>, L</kwd>
			</kwd-group>
			<counts>
				<page-count count="8"></page-count>
			</counts>
		</article-meta>
	</front>
</article>
