{"id":447,"date":"2018-04-07T11:37:06","date_gmt":"2018-04-07T15:37:06","guid":{"rendered":"http:\/\/site.caes.uga.edu\/vegpath\/?p=447"},"modified":"2018-04-10T22:28:58","modified_gmt":"2018-04-11T02:28:58","slug":"root-knot-nematodes-on-onion-by-dr-hajihassani","status":"publish","type":"post","link":"https:\/\/site.caes.uga.edu\/vegpath\/2018\/04\/root-knot-nematodes-on-onion-by-dr-hajihassani\/","title":{"rendered":"Root knot nematodes found on onion (by Dr. Hajihassani)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-448\" src=\"https:\/\/site.caes.uga.edu\/vegpath\/files\/2018\/04\/20180220_154917_resized_1-300x169.jpg\" alt=\"\" width=\"300\" height=\"169\" srcset=\"https:\/\/site.caes.uga.edu\/vegpath\/files\/2018\/04\/20180220_154917_resized_1-300x169.jpg 300w, https:\/\/site.caes.uga.edu\/vegpath\/files\/2018\/04\/20180220_154917_resized_1-768x432.jpg 768w, https:\/\/site.caes.uga.edu\/vegpath\/files\/2018\/04\/20180220_154917_resized_1-1024x576.jpg 1024w, https:\/\/site.caes.uga.edu\/vegpath\/files\/2018\/04\/20180220_154917_resized_1-245x138.jpg 245w, https:\/\/site.caes.uga.edu\/vegpath\/files\/2018\/04\/20180220_154917_resized_1.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Onion fields infested with root knot nematodes (RKN) were found in the Vidalia area. As can be seen in the picture (Photo: Aubrey Shirley), typical\u00a0symptoms of RKN on above-ground parts of plants can involve patchy stunting, poor growth and yellowing of\u00a0leaves. These symptoms are rather similar to\u00a0nutrient deficiency. Premature wilting of plants can be seen when the nematode population in soil is high. Characteristic damage symptoms by RKN are\u00a0 galled or swelled roots however the gall produced by these nematodes on onion are small compered to those produced on other vegetable crops. Therefore attention need to be taken when observing roots for galls. This group of nematodes have a wide host range and hence the crop chosen for rotation with onion should be selected\u00a0 carefully in infested fields. The most common and effective management of RKN on onion is pre-fumigation of soils particularly the plant beds and also post-plant applications of nematicides. Taking soil samples and sending them to a nematode diagnostic laboratory is always the best way to prevent any damage caused by this nematode pests.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Onion fields infested with root knot nematodes (RKN) were found in the Vidalia area. As can be seen in the picture (Photo: Aubrey Shirley), typical\u00a0symptoms of RKN on above-ground parts of plants can involve patchy stunting, poor growth and yellowing of\u00a0leaves. These symptoms are rather similar to\u00a0nutrient deficiency. Premature wilting of plants can be seen [&hellip;]<\/p>\n","protected":false},"author":186,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-447","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/posts\/447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/users\/186"}],"replies":[{"embeddable":true,"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/comments?post=447"}],"version-history":[{"count":5,"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/posts\/447\/revisions"}],"predecessor-version":[{"id":458,"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/posts\/447\/revisions\/458"}],"wp:attachment":[{"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/media?parent=447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/categories?post=447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.caes.uga.edu\/vegpath\/wp-json\/wp\/v2\/tags?post=447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}