{"id":734,"date":"2015-04-07T13:12:59","date_gmt":"2015-04-07T20:12:59","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=734"},"modified":"2024-05-06T13:31:34","modified_gmt":"2024-05-06T20:31:34","slug":"longidorus-elongatus-needle-nematode","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=734","title":{"rendered":"Longidorus elongatus: Needle nematode"},"content":{"rendered":"<h5 style=\"text-align: center;\"><strong>California Pest Rating for<\/strong><\/h5>\n<h5 style=\"text-align: center;\"><strong><em>Longidorus elongatus<\/em><\/strong><strong> (de Man, 1876) Micoletzky, 1922<\/strong><\/h5>\n<h5 style=\"text-align: center;\"><strong>(Needle nematode)<\/strong><\/h5>\n<h5 style=\"text-align: center;\"><strong>Pest\u00a0Rating:\u00a0 B<\/strong><\/h5>\n<p>&nbsp;<\/p>\n<hr \/>\n<h5 style=\"text-align: center;\"><strong>PEST RATING PROFILE<\/strong><\/h5>\n<h5><strong>Initiating Event: <\/strong><\/h5>\n<p>The CDFA\u2019s latest record of detection of <em>Longidorus elongatus<\/em> was in 2013 during a statewide survey for plant parasitic nematodes associated with golf course turf and citrus orchards.\u00a0 The nematode species was detected in turf (<em>Poa<\/em> sp.) samples from a golf course in Marin County, California. \u00a0Prior to this find, <em>L. elongatus <\/em>was last detected in California only few times during the early 60s to late 70s.\u00a0 \u00a0\u00a0The current temporary Q-rating of the nematode species is reassessed here and a permanent rating is proposed.<\/p>\n<h5><strong>History &amp; Status:<\/strong><\/h5>\n<p><span style=\"text-decoration: underline;\"><strong>Background<\/strong><\/span>:\u00a0 <em>Longidorus elongatus<\/em> is an obligate ectoparasite of host plants and feeds at or just behind root tips causing a characteristic swelling or galling of the tips as well as a general stunting of the root system.\u00a0 <em>Longidorus elongatus<\/em> has four juvenile stages and most likely produces one generation a year especially under field conditions however, there is a two- to four-fold increase on favored hosts. \u00a0The nematode species is found in cool soils that may vary from peat to sandy loams, although the species appears to prefer coarse, well-drained soils. Adults may live for several years, and the time to complete its life cycle is dependent on soil temperature. At 20 \u00baC a generation takes 19 weeks with a twenty-fold increase in population on wild (Woodland) strawberry, and at 30 \u00baC the life cycle is completed in 9 weeks. \u00a0Males are rare and reproduction is usually by parthenogenesis, except where males are common, in which case bisexual reproduction occurs.<\/p>\n<p style=\"padding-left: 30px;\"><em>Damage Potential: <\/em>Severe damage to certain crops has been caused by the direct feeding of the nematode.\u00a0 However, the major economic impact caused by this nematode is due to its ability to vector plant viruses.<em>\u00a0 Longidorus elongatus<\/em> transmits the Scottish strains of raspberry ringspot virus (RRV), tomato black ring virus (TBRV).\u00a0 Strawberry roots are damaged both by the direct feeding of the nematode as well as transmitted RRV and TBRV. \u00a0Raspberry, although a poor host to the nematode, is readily infected by both viruses transmitted by the nematode resulting in severe crop loss.\u00a0 <em>Longidorus elongatus<\/em> and <em>Trichodorus<\/em> spp. (stubby root nematode) and viruses are involved in \u2018Docking Disorder\u201d of sugarbeet.\u00a0 The virus is carried on the inner surface of the guiding sheath of the nematode\u2019s stylet.\u00a0 \u00a0The nematode species also transmits spoon leaf virus to red currants, certain raspberry varieties and weeds.<\/p>\n<p style=\"padding-left: 30px;\"><em>Hosts<\/em>: The species can feed on over 60 plant species comprising of a wide variety of herbaceous annual and perennial crops and weeds.\u00a0 Direct feeding by the nematode alone has caused severe crop damage to strawberry, sugarbeet, rye grass, potato, cereals (millets, wheat and barley), carrots and peppermint.\u00a0 In the USA, there are reports of severe damage caused to carrots, rye grass and peppermint.<\/p>\n<p style=\"padding-left: 30px;\"><em>Transmission<\/em>: The nematode species is able to spread over short and long distances when transported in infested soils accompanying plant stock, farm machinery, runoff and splash contaminated irrigation water, human and animal activity and soil contaminated clothing.<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>Worldwide Distribution<\/strong><\/span>: <em>Longidorus elongatus <\/em>occurs in a wide range of soils, especially, sandy and sandy loam soils, and has been found mainly in temperate regions.\u00a0 Worldwide distribution of the species include, <em>Asia<\/em>: India, Kazakhstan, Pakistan, Tajikstan, Turkey, Uzbekistan, Vietnam; <em>Africa<\/em>: South Africa; <em>North<\/em> <em>America<\/em>: Canada, USA; <em>Europe<\/em>: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Moldova, Netherlands, Norway, Poland, Portugal, Romania, Russian Federation, Slovakia, Spain, Sweden, Switzerland, United Kingdom, Ukraine; <em>Oceania<\/em>: New Zealand (CABI, 2014; EPPO, 2014).<\/p>\n<p>In the USA, <em>Longidorus elongatus<\/em> has been found in Arkansas, Oregon and California (CABI 2014; EPPO, 2014; CDFA Nematode detection records \u2013 \u2018Initiating event\u2019).\u00a0 Robbins and Brown (1991) noted that the accuracy of early reports of <em>L. elongatus<\/em> from Alabama, Florida, Idaho, Illinois, Michigan, New Jersey, New Mexico, Pennsylvania, Rhode Island, South Carolina, Texas, and Tennessee listed by Norton <em>et al.,<\/em> (1984), was doubtful due to the wide morphometric variation in range values for <em>L. elongatus<\/em> that may refer to other <em>Longidorus<\/em> species.<\/p>\n<p><strong><span style=\"text-decoration: underline;\">Official Contro<\/span>l<\/strong>: <em>Longidorus elongatus<\/em> is on the Harmful Organism lists of the following countries: Canada, Chile, Costa Rica, Ecuador, Honduras, Indonesia, and Taiwan (PCIT, 2015).<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>California Distribution<\/strong><\/span>:\u00a0 CDFA\u2019s Nematode detection records indicate that <em>Longidorus elongatus<\/em> was detected 34-40 years ago in two commercial sites: 1 in Borrego, San Diego County on Grape in 1962, and the other in Yountville, Napa County on Pear in 1977.\u00a0 Also it was discovered on 3 private properties: San Leandro, Alameda County in 1962; Santa Barbara, Santa Barbara County in 1976; San Francisco, Harding Park Golf course, San Francisco County in 1979. \u00a0\u00a0The nematode species was not detected in California until 2013 in Marin County during a statewide golf course survey.<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>California Interceptions<\/strong><\/span>: Since 1979, there has only been a single detection of <em>Longidorus elongatus<\/em> associated with an unknown houseplant that was intercepted at the Alturas Border Protection Station.<\/p>\n<p>The risk <em>Longidorus elongatus<\/em> would pose to California is evaluated below.<\/p>\n<h5><strong>Consequences of Introduction:\u00a0<\/strong><\/h5>\n<p><strong>1) \u00a0Climate\/Host Interaction:<\/strong> Evaluate if the pest would have suitable hosts and climate to establish in California. Score:<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) Not likely to establish in California; or likely to establish in very limited areas.<br \/>\n<span style=\"color: #008000;\"><strong>&#8211; Medium (2)<\/strong> may be able to establish in a larger but limited part of California.<\/span><br \/>\n&#8211; High (3) likely to establish a widespread distribution in California.<\/p>\n<p style=\"padding-left: 30px;\"><strong><em>Risk is <span style=\"color: #008000;\">Medium (2)<\/span> <\/em><\/strong><em>\u2013 <\/em>Longidorus elongatus <em>is able to establish in cool and moist regions of California.<\/em><\/p>\n<p><strong>\u00a02) \u00a0Known Pest Host Range:<\/strong> Evaluate the host range of the pest. Score:<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) has a very limited host range.<br \/>\n&#8211; Medium (2) has a moderate host range.<br \/>\n<span style=\"color: #008000;\">&#8211; <strong>High (3)<\/strong> has a wide host range.<\/span><\/p>\n<p style=\"padding-left: 30px;\"><strong><em>Risk is <span style=\"color: #008000;\">High (3) <\/span><\/em><\/strong>\u2013 Longidorus elongatus <em>has a very wide host range which includes \u00a0herbaceous annual and perennial crops, turf grass, and weeds.<\/em><\/p>\n<p><strong>3) \u00a0Pest Dispersal Potential:<\/strong> Evaluate the natural and artificial dispersal potential of the pest. Score:<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) does not have high reproductive or dispersal potential.<br \/>\n&#8211; Medium (2) has either high reproductive or dispersal potential.<br \/>\n<span style=\"color: #008000;\">&#8211; <strong>High (3)<\/strong> has both high reproduction and dispersal potential.<\/span><\/p>\n<p style=\"padding-left: 30px;\"><strong><em>Risk is <span style=\"color: #008000;\">High (3)<\/span><\/em><\/strong> <em>\u2013 The nematode\u2019s life cycle and increase is dependent on soil temperature and plant host. Long and short distance spread is mainly through infested soils accompanying plant stock, farm machinery, runoff and splash contaminated irrigation water, human and animal activity and soil contaminated clothing.<\/em> <em>\u00a0<\/em><\/p>\n<p><strong>4)<\/strong> \u00a0<strong>Economic Impact:<\/strong> Evaluate the economic impact of the pest to California using the criteria below. Score:<\/p>\n<p style=\"padding-left: 30px;\">A. The pest could lower crop yield.<br \/>\nB. The pest could lower crop value (includes increasing crop production costs).<br \/>\nC. The pest could trigger the loss of markets (includes quarantines).<br \/>\nD. The pest could negatively change normal cultural practices.<br \/>\nE. The pest can vector, or is vectored, by another pestiferous organism.<br \/>\nF. The organism is injurious or poisonous to agriculturally important animals.<br \/>\nG. The organism can interfere with the delivery or supply of water for agricultural uses.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) causes 0 or 1 of these impacts.<br \/>\n&#8211; Medium (2) causes 2 of these impacts.<br \/>\n<span style=\"color: #008000;\">&#8211; <strong>High (3)<\/strong> causes 3 or more of these impacts.<\/span><\/p>\n<p style=\"padding-left: 30px;\">\u00a0<strong><em>Risk is <span style=\"color: #008000;\">High (3)<\/span><\/em><\/strong><em> \u2013 Infestations of <\/em>Longidorus elongatus<em> could result in lowered crop yield and value, loss in market, and change in cultural practices to mitigate risk of spread to non-infested sites. The main economic damage is due to the ability of <\/em>L. elongatus<em> to vector <\/em>Raspberry ringspot virus<em> and <\/em>Tomato black ring virus<em>.<\/em><\/p>\n<p><strong>5)<\/strong>\u00a0<strong>Environmental Impact:<\/strong> Evaluate the environmental impact of the pest on California using the criteria below.<\/p>\n<p style=\"padding-left: 30px;\">A. The pest could have a significant environmental impact such as lowering biodiversity, disrupting natural communities, or changing ecosystem processes.<br \/>\nB. The pest could directly affect threatened or endangered species.<br \/>\nC. The pest could impact threatened or endangered species by disrupting critical habitats.<br \/>\nD. The pest could trigger additional official or private treatment programs.<br \/>\nE. The pest significantly impacts cultural practices, home\/urban gardening or ornamental plantings.<\/p>\n<p>Score the pest for Environmental Impact. Score:<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) causes none of the above to occur.<br \/>\n<span style=\"color: #008000;\">&#8211; <strong>Medium (2)<\/strong> causes one of the above to occur.<\/span><br \/>\n&#8211; High (3) causes two or more of the above to occur.<\/p>\n<p style=\"padding-left: 30px;\"><strong><em>Risk is <span style=\"color: #008000;\">Medium (2)<\/span> <\/em><\/strong><em>\u2013 The impact of<\/em> Longidorus elongatus <em>on natural environments is not known, however, the infestations of the pest could affect cultural practices, home gardening and ornamental plantings.<\/em><\/p>\n<h5><strong>Consequences of Introduction to California for <em>Longidorus elongatus:<\/em><\/strong><\/h5>\n<p>Add up the total score and include it here. (Score)<\/p>\n<p style=\"padding-left: 30px;\">-Low = 5-8 points<br \/>\n-Medium = 9-12 points<br \/>\n<span style=\"color: #008000;\"><strong>-High<\/strong> = 13-15 points<\/span><\/p>\n<p>Total points obtained on evaluation of consequences of introduction of <em>Longidorus elongatus<\/em> to California = <strong><span style=\"color: #008000;\">(13)<\/span>.<\/strong><\/p>\n<p><strong>6) \u00a0Post Entry Distribution and Survey Information<\/strong>: Evaluate the known distribution in California. Only official records identified by a taxonomic expert and supported by voucher specimens deposited in natural history collections should be considered. Pest incursions that have been eradicated, are under eradication, or have been delimited with no further detections should not be included. (Score)<\/p>\n<p style=\"padding-left: 30px;\">-Not established (0) Pest never detected in California, or known only from incursions.<br \/>\n-Low (-1) Pest has a localized distribution in California, or is established in one suitable climate\/host area (region).<br \/>\n<span style=\"color: #008000;\"><strong>-Medium (-2)<\/strong> Pest is widespread in California but not fully established in the endangered area, or pest established in two contiguous suitable climate\/host areas.<\/span><br \/>\n-High (-3) Pest has fully established in the endangered area, or pest is reported in more than two contiguous or non-contiguous suitable climate\/host areas.<\/p>\n<p style=\"padding-left: 30px;\"><strong><em>Evaluation is <span style=\"color: #008000;\">Medium (-2)<\/span>.\u00a0 <\/em><\/strong><em>Including the earlier detections of <\/em>Longidorus elongatus, <em>the species has been detected in northern and southern cool coastal and sub coastal counties of California.<\/em><\/p>\n<h5>Final Score:<\/h5>\n<p>7) The final score is the consequences of introduction score minus the post entry distribution and survey information score: (Score)<\/p>\n<p><span style=\"color: #008000;\"><strong><em>Final Score: <\/em><\/strong><\/span><em>\u00a0Score of Consequences of Introduction \u2013 Score of Post Entry Distribution and Survey Information <span style=\"color: #008000;\"><strong>=<\/strong> <strong>11<\/strong><\/span><\/em><\/p>\n<h5><strong>Uncertainty: <\/strong><\/h5>\n<p><em>While <\/em>Longidorus elongatus<em> has not been detected in California\u2019s agricultural production sites for the past 34 years, as determined through CDFA\u2019s different nematode detection programs and special surveys, there is always the possibility that this species may be detected in future targeted surveys thereby increasing its distribution.\u00a0 Such detections may alter the proposed rating of <\/em>L. elongatus.<\/p>\n<h5><strong>Conclusion and Rating Justification: <\/strong><\/h5>\n<p>Based on the evidence provided above <strong>the proposed rating for the needle nematode, <em>Longidorus elongatus<\/em>, is B.<\/strong><\/p>\n<h5><strong>References:<\/strong><\/h5>\n<p><strong>C<\/strong>ABI.\u00a0 2014.\u00a0 <em>Longidorus elongatus<\/em> full datasheet report.\u00a0 Crop Protection Compendium.\u00a0 <a href=\"http:\/\/www.cabi.org\/cpc\/\" target=\"_blank\" rel=\"noopener\">www.cabi.org\/cpc\/<\/a> .<\/p>\n<p><strong>E<\/strong>PPO.\u00a0 2014.\u00a0 <em>Longidorus elongatus<\/em> (LONGEL).\u00a0 European and Mediterranean Plant Protection Organization PQR database.\u00a0 <a href=\"http:\/\/www.eppo.int\/DATABASES\/pqr\/pqr.htm\" target=\"_blank\" rel=\"noopener\">http:\/\/www.eppo.int\/DATABASES\/pqr\/pqr.htm<\/a> .<\/p>\n<p><strong>N<\/strong>orton, D. C., P. Donald, J. Kimpinski, R. F. Meyers, G. R. Noel, E. M. Noffsinger, R. T. Robbins, D. C. Schmitt, C. Sosa-Moss, and T. C. VRAIN. (1984). \u00a0Distribution of plant-parasitic nematodes in North America. Society of Nematologists, Hyattsville, Maryland, 1-19.<\/p>\n<p><strong>P<\/strong>CIT.\u00a0 2015.\u00a0 USDA Phytosanitary Certificate Issuance &amp; Tracking System.\u00a0 <a href=\"https:\/\/pcit.aphis.usda.gov\/PExD\/faces\/ReportHarmOrgs.jsp\" target=\"_blank\" rel=\"noopener\">https:\/\/pcit.aphis.usda.gov\/PExD\/faces\/ReportHarmOrgs.jsp<\/a> .<\/p>\n<p><strong>R<\/strong>obbins, R. T. and D. J. F. Brown.\u00a0 1991. Comments on the taxonomy, occurrence and distribution of Longidoridae (Nematoda) in North America.\u00a0 Nematologica 37:395-419.<\/p>\n<h5>Responsible Party:<\/h5>\n<p>Dr. John J. Chitambar, Primary Plant Pathologist\/Nematologist, California Department of Food and Agriculture, 3294 Meadowview Road, Sacramento, CA 95832. Phone: 916-262-1110, plant.health[@]cdfa.ca.gov.<\/p>\n<hr \/>\n<h5>Comment Period: \u00a0<span style=\"color: #d91111;\">CLOSED<\/span><\/h5>\n<p>The 45-day comment period opened on Tuesday, \u00a0April 7, 2015 and <span style=\"color: #e05555;\"><strong>closed on May 22, 2015<\/strong><\/span>.<\/p>\n<hr \/>\n<h3 style=\"text-align: left;\"><strong>Pest\u00a0Rating:\u00a0 B<\/strong><\/h3>\n<hr \/>\n<p style=\"text-align: left;\"><em>Posted by ls<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>California Pest Rating for Longidorus elongatus (de Man, 1876) Micoletzky, 1922 (Needle nematode) Pest\u00a0Rating:\u00a0 B &nbsp; PEST RATING PROFILE Initiating Event: The CDFA\u2019s latest record of detection of Longidorus elongatus was in 2013 during a statewide survey for plant parasitic nematodes associated with golf course turf and citrus orchards.\u00a0 The nematode species was detected in &hellip; <a href=\"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=734\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Longidorus elongatus: Needle nematode<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1117,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[27],"tags":[141,140,188],"class_list":["post-734","post","type-post","status-publish","format-standard","hentry","category-nematodes","tag-longidorus-elongatus","tag-needle-nematode","tag-nematodes"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5l8vQ-bQ","jetpack-related-posts":[{"id":9039,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=9039","url_meta":{"origin":734,"position":0},"title":"Longidorus africanus Merny, 1966 Needle nematode","author":"Heather.Martin","date":"October 13, 2021","format":false,"excerpt":"California Pest Rating for Longidorus africanus Merny, 1966 Needle nematodePest Rating: C DOWNLOAD PEST RATING *NOTE You must be registered and logged in to post a comment. If you have registered and have not received the registration confirmation, please contact us at permits[@]cdfa.ca.gov. Posted by ta","rel":"","context":"In &quot;C-Rated&quot;","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":11802,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=11802","url_meta":{"origin":734,"position":1},"title":"Longidorus orientalis Loof, 1982 Needle nematode","author":"Heather.Martin","date":"September 5, 2023","format":false,"excerpt":"California Pest Rating for Longidorus orientalis Loof, 1982 Needle nematodePest Rating: C download pest rating *NOTE You must be registered and logged in to post a comment. If you have registered and have not received the registration confirmation, please contact us at permits[@]cdfa.ca.gov. Posted by tn","rel":"","context":"In &quot;C-Rated&quot;","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14400,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=14400","url_meta":{"origin":734,"position":2},"title":"Longidorus macrosoma Hooper, 1961 needle nematode","author":"Heather Martin","date":"February 6, 2026","format":false,"excerpt":"California Pest Rating Profile for Longidorus macrosoma Hooper, 1961 needle nematode Pest Rating: A Comment Period:\u00a002\/06\/2026 \u2013 03\/23\/2026 Download Pest Rating Profile *NOTE You must be registered and logged in to post a comment. If you have registered and have not received the registration confirmation, please contact us at permits[@]cdfa.ca.gov.\u2026","rel":"","context":"In &quot;A-Rated&quot;","block_context":{"text":"A-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=669"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1955,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1955","url_meta":{"origin":734,"position":3},"title":"Nematodes","author":"Admin","date":"May 13, 2016","format":false,"excerpt":"(Plant Parasitic Nematodes) Nematodes (also called \u2018roundworms\u2019) are relatively small, multicellular, worm-like animals. They are found in almost every environmental niche imaginable, living free in soil, marine and freshwater habitats while feeding on bacteria, fungi, and nematodes, or as parasites of humans, insects, fish, larger animals and plants. Plant parasitic\u2026","rel":"","context":"In &quot;Ratings&quot;","block_context":{"text":"Ratings","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=333"},"img":{"alt_text":"Nematodes montage","src":"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/05\/nematodes-featured-image.jpg?fit=1038%2C588&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/05\/nematodes-featured-image.jpg?fit=1038%2C588&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/05\/nematodes-featured-image.jpg?fit=1038%2C588&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/05\/nematodes-featured-image.jpg?fit=1038%2C588&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":382,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=382","url_meta":{"origin":734,"position":4},"title":"Helicotylenchus multicinctus (Cobb, 1893) Golden, 1956","author":"Admin","date":"March 16, 2015","format":false,"excerpt":"California Plant Pest Rating for Helicotylenchus multicinctus (Cobb, 1893) Golden, 1956 Pest\u00a0Rating:\u00a0B \u00a0 PEST RATING PROFILE Initiating Event: None. An evaluation of the risk involved with the possible introduction and spread of H. multicinctus in California is documented herein and a permanent rating is proposed for the species. History &\u2026","rel":"","context":"In &quot;Nematodes&quot;","block_context":{"text":"Nematodes","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=27"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1202,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1202","url_meta":{"origin":734,"position":5},"title":"Bursaphelenchus coccophilus (Cobb) Baujard 1989","author":"Admin","date":"October 14, 2015","format":false,"excerpt":"California Pest Rating for Bursaphelenchus coccophilus (Cobb) Baujard 1989 Pest Rating: A \u00a0 PEST RATING PROFILE Initiating Event: In 2011 the detection of the South American Palm Weevil in San Ysidro, a potential vector of the Red ring nematode, Bursaphelenchus coccophilus, led to laboratory examination of in-State detected weevils for\u2026","rel":"","context":"In &quot;Nematodes&quot;","block_context":{"text":"Nematodes","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=27"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/users\/1117"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=734"}],"version-history":[{"count":8,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/734\/revisions"}],"predecessor-version":[{"id":4659,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/734\/revisions\/4659"}],"wp:attachment":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}