Agriculture

Crop Production

Integrated Pest Managment

IPM for commercial crops

IPM strategies for Walnut

Walnut Pests

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<div id="MiddleColumn_internal">
<h3>Pests of National Significance</h3>
Insect pests
<ul>
<li>Stem borer: Aeolesthes sarta Solsky (Coleoptera: Cerambycidae) </li>
<li>Bark beetle/Shot-hole borer: Scolytus nitidus Schedl (Coleoptera: Scolytidae)</li>
<li>Gypsy moth: Lymantria obfuscata Walker (Lepidoptera: Lymantriidae) </li>
<li>Leaf roller: Archips argyrospilus (Walker) (Lepidoptera: Tortricidae) </li>
<li>Mealybug: Drosicha dalbergiae (Stebbing) (Hemiptera: Margarodidae) </li>
<li>Grey weevil: Myllocerus sp. (Coleoptera: Curculionidae) </li>
<li>Walnut weevil: Alcides porrectirostris Marshall (Coleoptera: Curculionidae) </li>
</ul>
Diseases
<ul>
<li>Leaf spot: Alternaria sp </li>
<li>Leaf blotch: Marsonina juglanse (Lib.) Magnus and Gnomonia leptostyla (Fr.) Ces. &amp; De Not.</li>
<li>Dieback: Glomerella cingulata (Stoneman) Spauld. &amp; H. Schrenk </li>
<li>Powdery mildew: Phyllactinia spp. </li>
<li>Walnut blight: Xanthomonas campestris (Pammel 1895) Dowson </li>
<li>Anthracnose: Gnomonia leptostyla (Fr.) Ces. &amp; De Not., </li>
<li>Phytophthora root and crown rot: Phytophthora spp </li>
<li>Armillaria root rot (Oak root fungus): Armillaria mellea (Vahl) P.Kumm. </li>
<li>Crown gall: Agrobacterium tumefaciens Smith &amp; Townsend, </li>
<li>Walnut canker: Geosmithia morbida M.Kolařík, E.Freeland, C.Utley &amp; Tisserat </li>
</ul>
<h3>Weeds</h3>
Broadleaf
<ul>
<li>Tropical spiderwort: Commelina benghalensis L. (Commelinaceae) </li>
<li>Creeping wood sorrel: Oxalis corniculata L. (Oxalidaceae) </li>
<li>Goat weed: Ageratum conyzoides L. (Asteraceae) </li>
<li>Sowthistles: Sonchus spp. (Asteraceae) </li>
<li>Congress grass: Parthenium hysterophorus L. (Asteraceae) </li>
<li>Lambs quarter: Chenopodium album L. (Chenopodiaceae) </li>
<li>Sweet yellow clover: Melilotus indica (L.) All. (Fabaceae) </li>
<li>Toothed Dock: Rumex dentatus L. (Polygonaceae) Grasses </li>
<li>Bermuda grass: Cynodon dactylon (Poaceae) </li>
<li>Cogon grass: Imperata cylindrica (L.) Raeusch. (Poaceae) </li>
<li>Blanket grass: Axonopus compressus (Sw.) Beauv. (Poaceae) </li>
<li>Large crabgrass: Digitaria sanguinalis L. (Scop.) (Poaceae) </li>
<li>Knot grass: Paspalum distichum L. (Poaceae) Sedges </li>
<li>Purple nutsedge: Cyperus rotundus L. (Cypraceae)</li>
</ul>
<h3>Pests of Regional Significance</h3>
Insect pests
<ul>
<li>Aphids: Chromaphis juglandicola (Kaltenbach) &amp; Panaphis juglandis (Goeze) (Hemiptera: Aphididae) </li>
<li>Coding moth: Cydia pomonella Linnaeus (Lepidoptera: Lasiocampidae) </li>
<li>San Jose scale: Quadraspidiotus perniciosus (Comstock) (Hemiptera: Diaspididae)</li>
</ul>
<h3>IPM for Walnut</h3>
To know the IPM practices for Walnut, <a href="http://vikaspedia.in/agriculture/crop-production/integrated-pest-managment/ipm-for-commercial-crops/ipm-strategies-for-walnut/walnut-stage" target="_blank" class="internal-link">click here.</a>
Source: <a class="ext-link-icon external-link" href="http://niphm.gov.in/IPMPackages/Walnut.pdf" target="_blank" title="niphm.gov.in (External website that opens in new window)">NIPHM</a>; <a class="ext-link-icon external-link" href="http://ppqs.gov.in/" target="_blank" title="ppqs.gov.in (External website that opens in new window)">Directorate of Plant Protection, Quarantine &amp; Storage</a>
</div>

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