{"id":5843,"date":"2018-11-07T15:00:17","date_gmt":"2018-11-07T23:00:17","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5843"},"modified":"2024-04-26T10:51:18","modified_gmt":"2024-04-26T17:51:18","slug":"tomato-brown-rugose-fruit-virus","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5843","title":{"rendered":"Tomato Brown Rugose Fruit Virus"},"content":{"rendered":"<h5 style=\"text-align: center;\"><strong>California Pest Rating for<\/strong><\/h5>\n<h5 style=\"text-align: center;\"><strong><em>Tomato Brown Rugose Fruit Virus<\/em><\/strong><\/h5>\n<h5 style=\"text-align: center;\"><strong> Pest Rating: \u00a0\u00a0\u00a0\u00a0 A<\/strong><\/h5>\n<hr \/>\n<p style=\"text-align: center;\">\n<h3 style=\"text-align: center;\">PEST RATING PROFILE<\/h3>\n<h5><strong>Initiating Event:<\/strong><\/h5>\n<p>On September 25, 2018, Tongyan Tian, CDFA Plant Pathologist, was notified by Kai-Shu Ling, Plant Pathologist, USDA ARS, Charleston, South Carolina, of his detection of <em>Tomato brown rugose fruit virus<\/em> (ToBRFV) in a tomato plant tissue sample sent to him by a private company in California.\u00a0 \u00a0The sample had been collected from tomato plants grown in the company\u2019s greenhouse in Santa Barbara County.\u00a0 On September 13, 2018, the company had also sent an unofficial symptomatic tomato leaf sample to CDFA for diagnosis of the associated pathogen. On November 2, 2018, Tongyan Tian, CDFA, identified the associated pathogen as <em>Tomato brown rugose fruit virus<\/em>. On further investigation of the situation in California, CDFA was notified by the company that all ToBRFV-infested and symptomatic plant material had been voluntarily destroyed, thereby preventing the collection of an official sample. Nevertheless, the risk associated with the possible introduction of ToBRFV and a proposed rating for this pathogen is documented here.<\/p>\n<h5><strong>History &amp; Status:<\/strong><\/h5>\n<p><strong><u>Background:<\/u><\/strong>\u00a0\u00a0<em>Tomato brown rugose fruit virus<\/em> is a relatively new <em>Tobamovirus<\/em> \u2013 the genus that bears other economically important and contagious pathogens that infect Solanaceae, such as <em>Tobacco mosaic virus (<\/em>TMV) and<em> Tomato mosaic virus <\/em>(ToMV<em>)<\/em>. ToBRFV was initially isolated from tomato plants grown in greenhouses in Jordan in 2015 (Salem et al., 2016).\u00a0 Prior to this, in 2014, an outbreak of a new disease infecting resistant tomato cultivars grown in net houses was observed in Southern Israel and was determined to be caused by the Israeli isolate of ToBRFV with high genomic sequence identity to the Jordan isolate (Luria et al., 2017).\u00a0 Most recently, ToBRFV was detected in tomato and chili pepper plants growing in nurseries in Yurecuaro, Michoacan, Mexico (NAPPO, 2018).\u00a0 There have been no previous reports of ToBRFV from the USA. The recent detection in greenhouse tomato plants in California that subsequently resulted in the destruction of all infested plants, does not verify the establishment of ToBRFV in the country (see \u2018Initiating Event\u2019).<\/p>\n<p>Tobamoviruses infecting tomato are of great concern, but ToBRFV is of special concern because of its ability to overcome resistance of the TM-2<sup>2<\/sup> resistance gene which is genetically bred into tomato plants for resistance against Tobamoviruses (Luria et al., 2017).\u00a0 The Israeli isolate of ToBRFV was found to infect pepper (<em>Capsicum<\/em> <em>annuum<\/em>) plants harboring the L resistance genes, when cultivated in contaminated soil from previous grown infected tomato plants, especially in hot temperatures above 30\u00b0C (Luria et al., 2017).\u00a0 Disease caused by ToBRFV is infectious and local spread can occur rapidly through mechanical means (see \u2018Dispersal and spread\u2019).<\/p>\n<p><em>Hosts:<\/em> \u00a0Tomato (<em>Solanum lycopersicum<\/em>) and pepper (<em>Capsicum annuum<\/em>) are the main hosts (Salem et al., 2016; Luria et al., 2017; NAPPO, 2018).\u00a0 Petunia (<em>Petunia hybrida<\/em>) and certain weeds like black nightshade (<em>S. nigrum<\/em>) were shown to be asymptomatic hosts in experiments (Luria et al., 2017).<\/p>\n<p><em>Symptoms<\/em>: \u00a0The Jordan isolate of ToBRFV in tomato caused mild foliar symptoms and strong brown rugose symptoms on fruit thereby affecting market value of the crop. \u00a0\u00a0Mechanically inoculated plants exhibited a range of local and systemic symptoms (Salem <em>et al<\/em>., 2016).\u00a0 Symptoms caused by the Israeli isolate of ToBRFV were mild and severe mosaic of leaves with occasional narrowing of the leaves.\u00a0 Yellow spots on fruit affected 10-15% of the total number of fruit produced on symptomatic plants (Luria et al., 2017).<\/p>\n<p>In pepper plants cultivated in ToBRFV-contaminated soil from previously grown infected tomato plants, especially in temperatures above 30\u00b0C, the hypersensitivity response included necrotic lesions on roots and stems resulting in inhibited plant growth and possibly plant collapse.\u00a0 Petunia and certain weeds are symptomless hosts, while eggplant and potatoes are non-hosts for the virus (Luria et al., 2017).<\/p>\n<p><em>Dispersal and spread:<\/em> ToBRFV is transmitted mechanically (plant to plant) via externally contaminated seed (over long distances), common cultural practices (worker\u2019s hand, clothes), tools, equipment and circulating water (Salem et al., 2016).\u00a0 Tobamoviruses are capable of preserving infectivity in seeds and contaminated soil (Broadbent, 1976; Luria <em>et al.,<\/em> 2017).\u00a0 Weed hosts can serve as reservoirs of inoculum for infection of the main hosts.<\/p>\n<p><em>Damage Potential: <\/em>Tobamoviruses are of main concern in tomato crops, especially when cultivated in protected environments such as greenhouses, where conditions favor rapid spread of the pathogen.\u00a0 The ability of ToBRFV to break resistance in tomato plants harboring the TM-2<sup>2<\/sup> resistance gene and, under certain conditions also pepper plants harboring the L resistance genes, makes the potential for damage a main concern. The stability and infectious nature of this <em>Tobamovirus<\/em> via mechanical transmission by workers, tools and equipment during the handling of plants, with infection most likely occurring when seedlings are thinned in nurseries or transplanted, plus transmission through contaminated seed, soil and circulating water, render a high potential for damage in tomato and pepper.\u00a0 Crop production and quality of ToBRFV-consumable tomato and pepper fruit can be affected thereby significantly impacting their market value.<\/p>\n<p><strong><u>Worldwide Distribution<\/u><\/strong>: <em>Asia<\/em>: Jordan (Salem et al., 2016), Israel (Luria et al., 2017); <em>North<\/em> <em>America<\/em>: Mexico (NAPPO, 2018).<\/p>\n<p><strong><u>Official Control<\/u><\/strong>: None reported.<\/p>\n<p><strong><u>California Distribution<\/u><\/strong>: <em>Tomato brown rugose fruit virus<\/em> is not present in California.\u00a0 The detection of ToBRFV in greenhouse tomato plants in Santa Barbara County resulted in the destruction of the plants (see \u2018Initiating Event\u2019).<\/p>\n<p><strong><u>California Interceptions<\/u><\/strong>: None reported.<\/p>\n<p>The risk <em>Tomato brown rugose fruit virus<\/em> would pose to California is evaluated below.<\/p>\n<h5><strong>Consequences of Introduction:\u00a0 <\/strong><\/h5>\n<p><strong>1) Climate\/Host Interaction: <\/strong>It is likely that Tomato brown rugose fruit virus can establish a widespread distribution in California wherever tomato and pepper plants are cultivated.<\/p>\n<p>Evaluate if the pest would have suitable hosts and climate to establish in California.<\/p>\n<p><strong>Score<\/strong>:<span style=\"color: #008000;\"><strong> 3<\/strong><\/span><\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) Not likely to establish in California; or likely to establish in very limited areas.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Medium (2) may be able to establish in a larger but limited part of California.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211; <strong>High (3)<\/strong> likely to establish a widespread distribution in California.<\/span><\/p>\n<p><strong>2) Known Pest Host Range:<\/strong> The main hosts of ToBRFV are tomato and pepper cultivars.\u00a0 Experimentally, petunia and few weeds have been proven to be asymptomatic hosts and weeds may serve as reservoirs of inoculum for subsequent infections of main cultivated hosts.<\/p>\n<p>Evaluate the host range of the pest.<\/p>\n<p><strong>Score: <span style=\"color: #008000;\">1 <\/span><\/strong><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211; <strong>Low (1)<\/strong> has a very limited host range.<\/span><\/p>\n<p style=\"padding-left: 30px;\">&#8211; Medium (2) has a moderate host range.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; High (3) has a wide host range.<\/p>\n<p><strong>3) Pest Dispersal Potential: <\/strong><em>Tomato brown rugose fruit virus <\/em>is a stable and readily infectious virus plant pathogen. It is easily transmitted from plant to plant by mechanical means which include common cultural practices, contaminated tools, equipment, hands, clothes, soil, and infected plants, and seed. Infections most likely occur in protected environments, where favorable conditions for pathogen spread exist, as when seedlings are thinned in nurseries or transplanted. Transmission of ToBRFV by insect vectors has not been reported.<\/p>\n<p><strong>Evaluate the natural and artificial dispersal potential of the pest. <\/strong><\/p>\n<p><strong>Score: <span style=\"color: #008000;\">3 <\/span><\/strong><\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) does not have high reproductive or dispersal potential.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Medium (2) has either high reproductive or dispersal potential.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211; <strong>High (3)<\/strong> has both high reproduction and dispersal potential.<\/span><\/p>\n<p><strong>4) Economic Impact: <\/strong>ToBRFV can break resistance in tomato plants harboring the TM-2<sup>2<\/sup> resistance gene and under certain conditions, also pepper plants harboring the L resistance genes. The stability and infectious nature of this <em>Tobamovirus<\/em> render a high potential for damage in tomato and pepper particularly under protected environments such as greenhouses.\u00a0 Crop production and quality of ToBRFV consumable tomato and pepper fruit can be affected thereby significantly impacting their market value.<\/p>\n<p>Evaluate the economic impact of the pest to California using the criteria below.<\/p>\n<p><strong>Economic Impact:<\/strong> <span style=\"color: #008000;\"><strong>A, B, C, D, G.<\/strong><\/span><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>A<\/strong>. The pest could lower crop yield.<\/span><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>B<\/strong>. The pest could lower crop value (includes increasing crop production costs).<\/span><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>C<\/strong>. The pest could trigger the loss of markets (includes quarantines).<\/span><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>D<\/strong>. The pest could negatively change normal cultural practices.<\/span><\/p>\n<p style=\"padding-left: 30px;\">E. The pest can vector, or is vectored, by another pestiferous organism.<\/p>\n<p style=\"padding-left: 30px;\">F. The organism is injurious or poisonous to agriculturally important animals.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>G<\/strong>. The organism can interfere with the delivery or supply of water for agricultural uses.<\/span><\/p>\n<p><strong>Economic Impact Score<\/strong>: <span style=\"color: #008000;\"><strong>3 <\/strong><\/span><\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) causes 0 or 1 of these impacts.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Medium (2) causes 2 of these impacts.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211; <strong>High (3)<\/strong> causes 3 or more of these impacts.<\/span><\/p>\n<p><strong>5) Environmental Impact: <\/strong>The natural host range is limited to tomato and pepper which are cultivated crops.\u00a0 Home\/urban gardening of these host plants may be impacted if infected with ToBRFV. Consequently, the establishment of this resistance-breaking <em>Tobamovirus<\/em> species in California could trigger additional official or private treatment programs.<\/p>\n<p>Evaluate the environmental impact of the pest on California using the criteria below.<\/p>\n<p><strong>Environmental Impact: <span style=\"color: #008000;\">D, E<\/span><\/strong><\/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.<\/p>\n<p style=\"padding-left: 30px;\">B. The pest could directly affect threatened or endangered species.<\/p>\n<p style=\"padding-left: 30px;\">C. The pest could impact threatened or endangered species by disrupting critical habitats.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>D<\/strong>. The pest could trigger additional official or private treatment programs.<\/span><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong>E<\/strong>. The pest significantly impacts cultural practices, home\/urban gardening or ornamental plantings.<\/span><\/p>\n<p><strong>Environmental Impact Score: <span style=\"color: #008000;\">3<\/span><\/strong><\/p>\n<p style=\"padding-left: 30px;\">&#8211; Low (1) causes none of the above to occur.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; Medium (2) causes one of the above to occur.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211;<strong> High (3)<\/strong> causes two or more of the above to occur.<\/span><\/p>\n<h5><strong>Consequences of Introduction to California for <em>Tomato brown rugose fruit virus:<\/em> <\/strong><\/h5>\n<p>Add up the total score and include it here. <span style=\"color: #008000;\"><strong>13<\/strong><\/span><\/p>\n<p style=\"padding-left: 30px;\">-Low = 5-8 points<\/p>\n<p style=\"padding-left: 30px;\">-Medium = 9-12 points<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211;<strong>High<\/strong> = 13-15 points<\/span><\/p>\n<p><strong>6) Post 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.<\/p>\n<p><strong><em>Evaluation is \u20180<\/em><\/strong><strong>\u2019.\u00a0 <\/strong>ToBRFV is not established in California.<\/p>\n<p><strong>Score:<\/strong> <span style=\"color: #008000;\"><strong>0<\/strong><\/span><\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211;<strong>Not established (0)<\/strong> Pest never detected in California or known only from incursions.<\/span><\/p>\n<p style=\"padding-left: 30px;\">-Low (-1) Pest has a localized distribution in California or is established in one suitable climate\/host area (region).<\/p>\n<p style=\"padding-left: 30px;\">-Medium (-2) Pest is widespread in California but not fully established in the endangered area, or pest established in two contiguous suitable climate\/host areas.<\/p>\n<p style=\"padding-left: 30px;\">-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<h5>Final Score:<\/h5>\n<p><strong>7) The final score is<\/strong> the consequences of introduction score minus the post entry distribution and survey information score: (Score)<\/p>\n<p><strong><em>Final Score: <\/em><\/strong><em>\u00a0Score of Consequences of Introduction \u2013 Score of Post Entry Distribution and Survey Information <strong>= <span style=\"color: #008000;\">13<\/span><\/strong><\/em><\/p>\n<h5><strong>Uncertainty: \u00a0<\/strong><\/h5>\n<p>The potential for weed plants, especially those commonly found in tomato and pepper fields in California, to serve as hosts and inoculum reservoirs of the pathogen is not known.<\/p>\n<h5><strong>Conclusion and Rating Justification: <\/strong><\/h5>\n<p>Based on the evidence provided above <strong>the proposed rating for <em>Tomato brown rugose fruit virus<\/em> is A.<\/strong><\/p>\n<hr \/>\n<h5><strong>References:<\/strong><\/h5>\n<p><strong>Broadbent, L.\u00a0 1976.\u00a0 Epidemiology and control of <em>Tomato mosaic virus<\/em>.\u00a0 Annual Review of Phytopathology, 14:75-96.<\/strong><\/p>\n<p><strong>L<\/strong>uria, N. Smith, E., Reingold, V., Bekelman, I., Lapidot, M., Levin, I., Elad, N., Tam., Y., Sela, Abu-Ras, A., Ezra, N., Haberman, A., Yitzhak, L., Lachman, O. and Dombrovsky, A.\u00a0 2017.\u00a0 A new Israeli <em>Tobamovirus<\/em> isolate infects tomato plants harboring Tm-22 resistance genes.\u00a0 PLoS ONE 12 (1):e0170429. \u00a0doi:10.1371\/journal.pone.0170429<\/p>\n<p><strong>N<\/strong>APPO. 2018. <em>Tomato Brown Rugose Fruit Virus<\/em>: detected in the municipality of Yurecuaro, Michoacan. North American Plant Protection Organization (NAPPO) Phytosanitary Alert System.\u00a0 September 17, 2018. <a href=\"https:\/\/www.pestalerts.org\/oprDetail.cfm?oprID=765\" target=\"_blank\" rel=\"noopener\">https:\/\/www.pestalerts.org\/oprDetail.cfm?oprID=765<\/a>.<\/p>\n<p><strong>S<\/strong>alem, N., Mansour, A., Ciuffo, M., Falk, B. W., and Turina, M.\u00a0 2016.\u00a0 A new <em>Tobamovirus<\/em> infecting tomato crops in Jordan.\u00a0 Archives of Virology, 161:503-506.<\/p>\n<hr \/>\n<h5><strong>Responsible Party:<\/strong><\/h5>\n<p>John J. Chitambar, Primary Plant Pathologist\/Nematologist, California Department of Food and Agriculture, 3294 Meadowview Road, Sacramento, CA 95832. Phone: 916-738-6693, plant.health[@]cdfa.ca.gov.<\/p>\n<hr \/>\n<h5><span style=\"color: #ff0000;\">*NOTE:<\/span><\/h5>\n<p>You must be registered and logged in to post a comment. \u00a0If you have registered and have not received the registration confirmation, please contact us at\u00a0plant.health[@]cdfa.ca.gov.<\/p>\n<hr \/>\n<h5>Comment Format:<\/h5>\n<p>\u2666 \u00a0Comments should refer to the appropriate California Pest Rating Proposal Form subsection(s)\u00a0being commented on, as shown below.<\/p>\n<p style=\"padding-left: 30px;\"><strong>Example Comment:<br \/>\n<\/strong>Consequences of Introduction: \u00a01. Climate\/Host Interaction:\u00a0[<em>Your comment that relates to \u201cClimate\/Host Interaction\u201d here.<\/em>]<\/p>\n<p>\u2666 \u00a0Posted comments will not be able to be viewed immediately.<\/p>\n<p>\u2666 \u00a0Comments may not be posted if they:<\/p>\n<p style=\"padding-left: 30px;\">Contain inappropriate language which is not germane to\u00a0the pest rating proposal;<\/p>\n<p style=\"padding-left: 30px;\">Contains defamatory, false, inaccurate, abusive, obscene, pornographic,\u00a0sexually oriented, threatening, racially offensive, discriminatory or illegal\u00a0material;<\/p>\n<p style=\"padding-left: 30px;\">Violates agency regulations prohibiting sexual harassment or other forms\u00a0of discrimination;<\/p>\n<p style=\"padding-left: 30px;\">Violates agency regulations prohibiting workplace violence, including threats.<\/p>\n<p>\u2666 \u00a0Comments may be edited prior to posting to ensure they are entirely germane.<\/p>\n<p>\u2666 \u00a0Posted comments shall be those which have been approved in content and posted to the\u00a0website to be viewed, not just submitted.<\/p>\n<hr \/>\n<h3><strong>Pest Rating: A<\/strong><\/h3>\n<hr \/>\n<p><em>Posted by ls\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>California Pest Rating for Tomato Brown Rugose Fruit Virus Pest Rating: \u00a0\u00a0\u00a0\u00a0 A PEST RATING PROFILE Initiating Event: On September 25, 2018, Tongyan Tian, CDFA Plant Pathologist, was notified by Kai-Shu Ling, Plant Pathologist, USDA ARS, Charleston, South Carolina, of his detection of Tomato brown rugose fruit virus (ToBRFV) in a tomato plant tissue sample &hellip; <a href=\"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5843\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Tomato Brown Rugose Fruit Virus<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1117,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_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}},"categories":[669,4,39],"tags":[675],"class_list":["post-5843","post","type-post","status-publish","format-standard","hentry","category-a-rated","category-plant-pathology","category-viruses-and-viroids","tag-a-rated-pest"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5l8vQ-1wf","jetpack-related-posts":[{"id":732,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=732","url_meta":{"origin":5843,"position":0},"title":"Pepino Mosaic Virus (PepMV)","author":"Admin","date":"April 7, 2015","format":false,"excerpt":"California Pest Rating for Pepino Mosaic Virus (PepMV) Pest\u00a0Rating: B PEST RATING PROFILE Initiating Event:\u00a0 In January 2015, Tongyan Tian, CDFA Plant Pathologist, detected Pepino mosaic virus(PepMV) in two official tomato samples collected from plants grown in a greenhouse in San Diego County.\u00a0 The virus has been previously reported by\u2026","rel":"","context":"In &quot;Plant Pathogens&quot;","block_context":{"text":"Plant Pathogens","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=4"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1181,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1181","url_meta":{"origin":5843,"position":1},"title":"Tomato Chlorotic Dwarf Viroid","author":"Admin","date":"October 12, 2015","format":false,"excerpt":"California Pest Rating for Tomato Chlorotic Dwarf Viroid Pest Rating: A PEST RATING PROFILE Initiating Event:\u00a0 On October 23, 2014 CDFA was notified by USDA APHIS of the detection of Tomato chlorotic dwarf viroid (TCDVd) in four experimental Petunia samples that were shipped under federal permit from California to Illinois\u2026","rel":"","context":"In &quot;Plant Pathogens&quot;","block_context":{"text":"Plant Pathogens","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=4"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1183,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1183","url_meta":{"origin":5843,"position":2},"title":"Tomato Mottle Mosaic Virus (ToMMV)","author":"Admin","date":"October 12, 2015","format":false,"excerpt":"California Pest Rating for Tomato Mottle Mosaic Virus (ToMMV) Pest Rating: B PEST RATING PROFILE Initiating Event:\u00a0 On September 17, 2015, the CDFA was notified by a seed company of the detection of Tomato mottle mosaic virus (ToMMV) in tomatoes grown at the company\u2019s farm in San Joaquin County.\u00a0 Subsequently,\u2026","rel":"","context":"In &quot;Plant Pathogens&quot;","block_context":{"text":"Plant Pathogens","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=4"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1012,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1012","url_meta":{"origin":5843,"position":3},"title":"Tomato Yellow Leaf Curl Virus (TYLCV)","author":"Admin","date":"June 1, 2015","format":false,"excerpt":"California Pest Rating for Tomato Yellow Leaf Curl Virus (TYLCV) Pest Rating: B PEST RATING PROFILE Initiating Event:\u00a0 The risk of infestation of Tomato yellow leaf curl virus (TYLCV) in California is evaluated and a permanent rating is proposed. History & Status: Background:\u00a0\u00a0\u00a0 During the early 1960s in Israel, Tomato\u2026","rel":"","context":"In &quot;Plant Pathogens&quot;","block_context":{"text":"Plant Pathogens","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=4"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7270,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=7270","url_meta":{"origin":5843,"position":4},"title":"Tomato ringspot virus","author":"Heather.Martin","date":"June 2, 2020","format":false,"excerpt":"California Pest Rating for Tomato ringspot virusPest 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 ka","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":9050,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=9050","url_meta":{"origin":5843,"position":5},"title":"Tomato torrado virus","author":"Heather.Martin","date":"October 13, 2021","format":false,"excerpt":"California Pest Rating for Tomato torrado virusPest Rating: A 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. 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