{"id":1588,"date":"2016-02-29T15:25:30","date_gmt":"2016-02-29T23:25:30","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1588"},"modified":"2024-04-26T11:15:10","modified_gmt":"2024-04-26T18:15:10","slug":"freesia-sneak-virus-fresv","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1588","title":{"rendered":"Freesia Sneak Virus (FreSV)"},"content":{"rendered":"<h5 style=\"text-align: center;\"><strong>California Pest Rating for<a href=\"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?attachment_id=2227\" rel=\"attachment wp-att-2227\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2227\" data-permalink=\"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?attachment_id=2227\" data-orig-file=\"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?fit=3072%2C2304&amp;ssl=1\" data-orig-size=\"3072,2304\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood\" data-image-description=\"&lt;p&gt;Image Number: 5408664&lt;br \/&gt;\nFreesia sneak virus (Ophiovirus FreSV)&lt;br \/&gt;\nSource URL: &lt;a href=&quot;http:\/\/www.forestryimages.org\/browse\/detail.cfm?imgnum=5408664&quot; target=&quot;_blank&quot; rel=&quot;noopener noreferrer&quot;&gt;http:\/\/www.forestryimages.org\/browse\/detail.cfm?imgnum=5408664&lt;\/a&gt;&lt;\/p&gt;\n&lt;p&gt;Photographer: Mary Ann Hansen&lt;br \/&gt;\nOrganization: Virginia Polytechnic Institute and State University&lt;br \/&gt;\nDescriptor: Symptoms&lt;br \/&gt;\nDescription: Host: Freesia hybrida cultivar Santana Leaf flecking, leaf discoloration&lt;br \/&gt;\nImage type:Laboratory&lt;br \/&gt;\nHost: freesia (&lt;em&gt;Freesia&lt;\/em&gt; spp.)&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?fit=474%2C356&amp;ssl=1\" class=\"aligncenter size-full wp-image-2227\" src=\"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?resize=474%2C356\" alt=\"Freesia Sneak Virus\" width=\"474\" height=\"356\" srcset=\"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?w=3072&amp;ssl=1 3072w, https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?w=948&amp;ssl=1 948w, https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/06\/5408664-WEB_FreesiaSneakVirus-byMaryAnnHansen-bugwood.jpg?w=1422&amp;ssl=1 1422w\" sizes=\"auto, (max-width: 474px) 100vw, 474px\" \/><\/a><\/strong><\/h5>\n<h5 style=\"text-align: center;\"><strong>Freesia Sneak Virus<\/strong><\/h5>\n<h5 style=\"text-align: center;\">Pest Rating: B<\/h5>\n<hr \/>\n<h5 style=\"text-align: center;\"><strong>PEST RATING PROFILE<\/strong><\/h5>\n<h5><strong>Initiating Event: <\/strong><\/h5>\n<p>None.\u00a0\u00a0 \u00a0<strong>\u00a0<\/strong><\/p>\n<h5><strong>History &amp; Status:<\/strong><\/h5>\n<p><strong><u>Background<\/u><\/strong>:\u00a0 <em>Freesia sneak virus<\/em> (FreSV) is associated with freesia leaf necrosis disease. The disease has been reported in Europe since the 1970s.\u00a0 Although FreSV has been most closely correlated with freesia leaf necrosis symptoms in freesia plants, other species within the same genus may also be correlated (e.g., <em>Freesia mosaic virus<\/em> FreMV) and, therefore, the causal agent(s) is\/are still being determined (Bouwen, 1994; Meekes &amp; Verbeek, 2011).<\/p>\n<p><em>Freesia sneak virus<\/em> is a plant virus belonging to the genus <em>Ophiovirus<\/em> in the family Ophioviridae.\u00a0 <em>Freesia sneak virus<\/em> is soil-borne and vectored by the soil-borne fungus, <em>Olpidium brassicae.<\/em> Initially, the virus was provisionally called Freesia Ophiovirus, but is now known as <em>Freesia sneak virus <\/em>(Vaira <em>et al<\/em>., 2006).<\/p>\n<p>In the USA, <em>Freesia sneak virus<\/em> was first reported from infected <em>Freesia<\/em> spp. in Virginia in 2009 (Vaira et al., 2009).\u00a0 The pathogen was detected in California, in symptomatic freesia plant samples collected during April 2014, from a nursery in San Luis Obispo County. The pathogen was identified by Tongyan Tian, CDFA plant pathologist.\u00a0 Subsequently, all infected plant material was destroyed.<\/p>\n<p style=\"padding-left: 30px;\"><strong>Hosts<\/strong>: <em>Freesia<\/em> spp. (Iradaceae) and <em>Lachenalia<\/em> spp. (Hyacinthaceae) (Jeong, <em>et al<\/em>., 2014; Meekes &amp; Verbeek, 2011; Vaira <em>et al<\/em>., 2007, 2009).\u00a0 Both hosts are monocots native to South Africa.<\/p>\n<p style=\"padding-left: 30px;\"><strong>Symptoms<\/strong>: Symptoms may be affected by environmental conditions (Vaira et al., 2006).<\/p>\n<p style=\"padding-left: 30px;\">Freesia leaf necrosis disease mainly affects the leaves exhibiting chlorotic spots and stripes that start at the leaf tip and usually spread over the entire leaf.\u00a0 Later these chlorotic spots turn grey-brown and become necrotic.\u00a0 Mildly infected plants show light chlorotic symptoms only on the lower leaves.\u00a0 Flowers and corms do not seem to be affected by the disease (Van Dorst, 1973; Bouwen, 1994; Meekes &amp; Verbeek, 2011).<\/p>\n<p style=\"padding-left: 30px;\"><strong>Damage Potential:<\/strong> In detection surveys conducted in Korea, <em>Freesia sneak virus<\/em> was detected from 71.7% of 138 plants tested (Jeong <em>et al.,<\/em> 2014).\u00a0 Infection rates of 10-25% percent of plants shipped to the USA have been reported (Hansen, 2008; Vaira <em>et al<\/em>., 2009).\u00a0 In California, nursery and private productions of freesia and lachenalia plants, in particular, may be impacted if infected with <em>Freesia sneak virus<\/em>.<\/p>\n<p style=\"padding-left: 30px;\"><strong>Transmission<\/strong>: in nature, <em>Freesia sneak virus<\/em> is vectored by the soil-borne fungus, <em>Olpidium brassicae<\/em>, and not by mechanical transmission.\u00a0 Resting spores of <em>O. brassicae<\/em> are very persistent and can survive for more than twenty years in soil without losing the capacity to transmit the disease (Meekes &amp; Verbeek, 2011). \u00a0\u00a0Therefore, spread of FreSV is also through movement of contaminated soils and plants.<\/p>\n<p><strong><u>Worldwide Distribution<\/u>:<\/strong>\u00a0 Asia: Korea; Africa: South Africa; Europe: Northern Europe including the Netherlands, Italy; North America: USA (Virginia) (Jeong <em>et al<\/em>., 2014; Meekes &amp; Verbeek, 2011; Vaira, <em>et al<\/em>., 2007, 2009).<\/p>\n<p><strong><u>Official Control<\/u>:<\/strong> None reported.<\/p>\n<p><strong><u>California Distribution<\/u>:<\/strong> San Luis Obispo (nursery).<\/p>\n<p><strong><u>California Interceptions<\/u>:<\/strong> There have not been any interceptions of Freesia sneak virus-infected plants entering California.<\/p>\n<p>The risk <em>Freesia sneak<\/em> <em>virus<\/em> would pose to California is evaluated below.<\/p>\n<h5><strong>Consequences of Introduction:\u00a0 <\/strong><\/h5>\n<p><strong>1) <span style=\"text-decoration: underline;\">Climate\/Host Interaction<\/span>:<\/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.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211; <strong>Medium (2)<\/strong> may be able to establish in a larger but limited part of California.<\/span><\/p>\n<p style=\"padding-left: 30px;\">&#8211; High (3) likely to establish a widespread distribution in California.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong><em>Risk is Medium (2) <\/em><\/strong><\/span><em>\u2013 <\/em>Freesia sneak virus<em> is likely to establish wherever freesia and lachenalia plants are grown in limited areas of California. Freesia has limited production in state and is naturalized mostly in the north coast region, as well as cultivated in nursery and private production sites \u2013 including home gardens.\u00a0\u00a0 \u00a0Lachenalia is grown mainly in nurseries and in private productions as a hobbyist\u2019s plant. \u00a0\u00a0<\/em><\/p>\n<p><strong>2) <span style=\"text-decoration: underline;\">Known Pest Host Range<\/span>:<\/strong> Evaluate the host range of the pest. Score:<\/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 style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong><em>Risk is Low (1) <\/em><\/strong><\/span>\u2013 Freesia sneak virus <em>is limited to<\/em> Freesia <em>spp<\/em>. <em>(Iradaceae) and<\/em> Lachnenalia <em>spp<\/em>. <em>(Hyacinthaceae).<\/em><\/p>\n<p><strong>3)\u00a0<span style=\"text-decoration: underline;\">Pest Dispersal Potential<\/span>:<\/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.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211; <strong>Medium (2)<\/strong> has either high reproductive or dispersal potential.<\/span><\/p>\n<p style=\"padding-left: 30px;\">&#8211; High (3) has both high reproduction and dispersal potential.<\/p>\n<p style=\"padding-left: 30px;\"><strong><em><span style=\"color: #008000;\">Risk is Medium (2)<\/span> <\/em><\/strong><em>\u2013 <\/em>Freesia sneak virus <em>has high reproductive potential.\u00a0 In nature, its spread to non-infected plants is dependent on the presence of the soil-borne fungus vector, <\/em>Olpidium brassicae<em>.\u00a0 Resting spores of <\/em>O. brassicae<em> are very persistent and can survive for more than twenty years in soil without losing their viability. Therefore, FreSV is also spread through movement of contaminated soils and plants.\u00a0 The pathogen is not mechanically transmitted.<\/em><\/p>\n<p><strong>4) <span style=\"text-decoration: underline;\">Economic Impact<\/span>:<\/strong> Evaluate the economic impact of the pest to California using the criteria below. Score:<\/p>\n<p style=\"padding-left: 30px;\"><strong>A<\/strong>. The pest could lower crop yield.<\/p>\n<p style=\"padding-left: 30px;\"><strong>B<\/strong>. The pest could lower crop value (includes increasing crop production costs).<\/p>\n<p style=\"padding-left: 30px;\"><strong>C<\/strong>. The pest could trigger the loss of markets (includes quarantines).<\/p>\n<p style=\"padding-left: 30px;\"><strong>D<\/strong>. The pest could negatively change normal cultural practices.<\/p>\n<p style=\"padding-left: 30px;\"><strong>E<\/strong>. The pest can vector, or is vectored, by another pestiferous organism.<\/p>\n<p style=\"padding-left: 30px;\"><strong>F<\/strong>. The organism is injurious or poisonous to agriculturally important animals.<\/p>\n<p style=\"padding-left: 30px;\"><strong>G<\/strong>. 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.<\/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 style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong><em>Risk is High (3) <\/em><\/strong><\/span><em>\u2013 Incidents of <\/em>Freesia sneak virus<em> infections could lower plant value resulting in loss in market sales of nursery-grown freesia and lachenalia plants.\u00a0 The pathogen is vectored by the soil fungus, <\/em>Olpidium brassicae.<em>\u00a0 \u00a0\u00a0<\/em><\/p>\n<p><strong>5) <span style=\"text-decoration: underline;\">Environmental Impact<\/span>:<\/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.<\/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;\">D. The pest could trigger additional official or private treatment programs.<\/p>\n<p style=\"padding-left: 30px;\">E. 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;\"><span style=\"color: #008000;\">&#8211;<strong> Low (1)<\/strong> causes none of the above to occur.<\/span><\/p>\n<p style=\"padding-left: 30px;\">&#8211; Medium (2) causes one of the above to occur.<\/p>\n<p style=\"padding-left: 30px;\">&#8211; High (3) causes two or more of the above to occur.<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong><em>Risk is <\/em><\/strong><strong><em>Low (1)<\/em><\/strong> <\/span><em>\u2013 Plant infections caused by <\/em>Freesia sneak virus<em> are likely to have a minimal impact on the overall environment but may significantly impact home gardening and ornamental plantings. <\/em><\/p>\n<h5><strong>Consequences of Introduction to California for <em>Freesia sneak virus<\/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<\/p>\n<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\">&#8211;<strong>Medium = 9-12 points<\/strong><\/span><\/p>\n<p style=\"padding-left: 30px;\">-High = 13-15 points<\/p>\n<p>Total points obtained on evaluation of consequences of introduction of <em>Freesia sneak virus<\/em> to California <strong><span style=\"color: #008000;\">= 9<\/span><\/strong>.<\/p>\n<p><strong>6) <span style=\"text-decoration: underline;\">Post Entry Distribution and Survey Information<\/span>:<\/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;\"><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<p style=\"padding-left: 30px;\"><span style=\"color: #008000;\"><strong><em>Evaluation is not established.\u00a0 <\/em><\/strong><\/span>Freesia sneak virus-<em>infected freesia plants have only been detected in a contained nursery environment in California.\u00a0 Those plants were subsequently destroyed and therefore, the pathogen is not considered established in the State.<\/em><\/p>\n<h5>Final Score:<\/h5>\n<p><strong>7) <span style=\"text-decoration: underline;\">The final score is<\/span><\/strong> the consequences of introduction score minus the post entry distribution and survey information score: (Score)<\/p>\n<p><strong><em><span style=\"color: #008000;\">Final Score:<\/span> <\/em><\/strong><em>\u00a0Score of Consequences of Introduction \u2013 Score of Post Entry Distribution and Survey Information <span style=\"color: #008000;\"><strong>= 9<\/strong><\/span><\/em><\/p>\n<h5><strong>Uncertainty: <\/strong><\/h5>\n<p>None.<\/p>\n<h5><strong>Conclusion and Rating Justification: <\/strong><\/h5>\n<p>Based on the evidence provided above <strong>the proposed rating for <em>Freesia sneak virus<\/em> is <span style=\"color: #008000;\">B<\/span>.<\/strong><\/p>\n<h5><strong>References:<\/strong><\/h5>\n<p><strong>B<\/strong>ouwen, I.\u00a0 1994. \u00a0Freesia leaf necrosis: some of its mysteries revealed.\u00a0 Virus Diseases of Ornamental Plants VIII, Acta Horticulturae 377: 311-318.<\/p>\n<p><strong>H<\/strong>ansen, M. A.\u00a0\u00a0 2008.\u00a0 <em>Freesia sneak virus<\/em> \u2013 a new find for the United States.\u00a0 Virginia Cooperative Extension, Virginia Tech Plant Disease Clinic: <a href=\"https:\/\/www.cals.ncsu.edu\/plantpath\/activities\/societies\/ornamental\/2008_talks\/freesia_sneak_virus_4.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.cals.ncsu.edu\/plantpath\/activities\/societies\/ornamental\/2008_talks\/freesia_sneak_virus_4.pdf<\/a>.<\/p>\n<p><strong>J<\/strong>eong, M. I., Y. J. Choi, J. H. Joa, K. S. Choi, and B. N. Chung.\u00a0 2014.\u00a0 First report of <em>Freesia sneak virus<\/em> in commercial <em>Freesia hybrida<\/em> cultivars in Korea.\u00a0 Plant Disease 95:162. <a href=\"http:\/\/dx.doi.org\/10.1094\/PDIS-05-13-0484-PDN\">http:\/\/dx.doi.org\/10.1094\/PDIS-05-13-0484-PDN<\/a>.<\/p>\n<p><strong>M<\/strong>eekes, E. T. M., and M. Verbeek.\u00a0 2011.\u00a0 New insights in Freesia leaf necrosis disease.\u00a0 Proceedings XII<sup>th<\/sup> IS on Virus Diseases of Ornamental Plants; Editors A. F. L. M. Derks <em>et al<\/em>.\u00a0 Acta Horticulturae\u00a0 901, ISHA 2011.<\/p>\n<p><strong>V<\/strong>aira, A. M., V. Lisa, A. Costantini, V. Masenga, S. Rapetti, and R. G. Milne.\u00a0 2006.\u00a0 Ophioviruses infecting ornamentals and a probable new species associated with a severe disease in Freesia.\u00a0 Proceeding XI<sup>th<\/sup> IS on Virus Diseases in Ornamentals, Ed. C. A. Chang.\u00a0 Acta Horticulturae 722, ISHA 2006.<\/p>\n<p><strong>V<\/strong>aira, A. M., R. Kleynhans, and J. Hammond.\u00a0 2007.\u00a0 First report of <em>Freesia sneak virus<\/em> infecting <em>Lachenalia<\/em> cultivars in South Africa.\u00a0 Plant Disease 91:770.\u00a0 <a href=\"http:\/\/dx.doi.org\/10.1094\/PDIS-91-6-0770A\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/dx.doi.org\/10.1094\/PDIS-91-6-0770A<\/a>.<\/p>\n<p><strong>V<\/strong>aira, A. M. , M. A. Hansen, C. Murphy, M. D. Reinsel, and J. Hammond.\u00a0 2009.\u00a0 First report of <em>Freesia sneak virus<\/em> in <em>Freesia<\/em> sp. in Virginia.\u00a0 Plant disease, 93:965. <a href=\"http:\/\/dx.doi.org\/10.1094\/PDIS-93-9-0965B\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/dx.doi.org\/10.1094\/PDIS-93-9-0965B<\/a>.<\/p>\n<p><strong>V<\/strong>an Dorst, H. J. M.\u00a0 1973. Two new disorders in freesias.\u00a0 Netherland Journal of Plant Pathology 79:130-137.<\/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: 916-262-1110, plant.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:\u00a0<\/strong><\/p>\n<p style=\"padding-left: 30px;\">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>Pest Rating: B<\/h3>\n<hr \/>\n<p><em>Posted by ls<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>California Pest Rating for Freesia Sneak Virus Pest Rating: B PEST RATING PROFILE Initiating Event: None.\u00a0\u00a0 \u00a0\u00a0 History &amp; Status: Background:\u00a0 Freesia sneak virus (FreSV) is associated with freesia leaf necrosis disease. The disease has been reported in Europe since the 1970s.\u00a0 Although FreSV has been most closely correlated with freesia leaf necrosis symptoms in &hellip; <a href=\"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1588\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Freesia Sneak Virus (FreSV)<\/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_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},"jetpack_post_was_ever_published":false},"categories":[4,39],"tags":[269,45,154],"class_list":["post-1588","post","type-post","status-publish","format-standard","hentry","category-plant-pathology","category-viruses-and-viroids","tag-freesia-sneak-virus-fresv","tag-plant-pathogen","tag-virus"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5l8vQ-pC","jetpack-related-posts":[{"id":2226,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=2226","url_meta":{"origin":1588,"position":0},"title":"Freesia Mosaic Virus","author":"Admin","date":"June 29, 2016","format":false,"excerpt":"California Pest Rating for Freesia Mosaic Virus Pest Rating: B PEST RATING PROFILE Initiating Event: On March 21, 2016, two samples of diseased Lilium sp. (lily) plants exhibiting leaf spots, were collected from a nursery in San Luis Obispo County, during a regulatory nursery inspection by San Luis Obispo County\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":6452,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=6452","url_meta":{"origin":1588,"position":1},"title":"Plum bark necrosis stem pitting-associated virus","author":"Heather.Martin","date":"September 27, 2019","format":false,"excerpt":"California Pest Rating for Plum bark necrosis stem pitting-associated virus Pest 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 plant.health[@]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":5426,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5426","url_meta":{"origin":1588,"position":2},"title":"Grapevine Pinot gris Virus (GPGV)","author":"Admin","date":"May 22, 2018","format":false,"excerpt":"California Pest Rating\u00a0 for Grapevine Pinot gris Virus (GPGV) Pest Rating: B PEST RATING PROFILE Initiating Event: \u00a0\u00a0 A pest risk assessment and rating for Grapevine pinot gris virus (GPGV) was recently requested by Joshua Kress, CDFA Pest Exclusion Branch, in response to notification received on January 24, 2018, from\u2026","rel":"","context":"In &quot;B-Rated&quot;","block_context":{"text":"B-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=670"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1604,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1604","url_meta":{"origin":1588,"position":3},"title":"Squash Vein Yellowing Virus (SqVYV)","author":"Admin","date":"February 29, 2016","format":false,"excerpt":"California Pest Rating for Squash Vein Yellowing Virus (SqVYV) Pest Rating: \u00a0B PEST RATING PROFILE Initiating Event: None.\u00a0 The risk of introduction of Squash vein yellowing virus to California is assessed and a permanent rating for SqVYV is herein proposed. History & Status: Background:\u00a0\u00a0\u00a0 In 2003 in Hillsborough County, Florida,\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":14548,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=14548","url_meta":{"origin":1588,"position":4},"title":"Rice hoja blanca virus white leaf disease of rice","author":"Heather Martin","date":"April 16, 2026","format":false,"excerpt":"California Pest Rating Proposal for Rice hoja blanca virus white leaf disease of rice Current Pest Rating: None Proposed Pest Rating: A Comment Period:\u00a004\/16\/2026 through 05\/31\/2026 Download Pest Rating Proposal *NOTE You must be registered and logged in to post a comment. If you have registered and have not received\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":3992,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=3992","url_meta":{"origin":1588,"position":5},"title":"Uromyces transversalis","author":"Admin","date":"August 14, 2017","format":false,"excerpt":"California Pest Rating for Uromyces transversalis (Th\u00fcm.) G. Winter Pest Rating: C PEST RATING PROFILE Initiating Event: \u00a0 None.\u00a0 The status of Uromyces transversalis in California, is updated and the current rating is reviewed. History & Status: Background:\u00a0 Uromyces transversalis is an autoecious rust pathogen that causes rust disease, commonly\u2026","rel":"","context":"In &quot;Fungi&quot;","block_context":{"text":"Fungi","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=8"},"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\/1588","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=1588"}],"version-history":[{"count":10,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/1588\/revisions"}],"predecessor-version":[{"id":10488,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/1588\/revisions\/10488"}],"wp:attachment":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}