{"id":5261,"date":"2018-04-24T13:54:01","date_gmt":"2018-04-24T20:54:01","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5261"},"modified":"2018-06-12T09:43:54","modified_gmt":"2018-06-12T16:43:54","slug":"granulate-ambrosia-beetle-xylosandrus-crassiusculus-motschulsky","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5261","title":{"rendered":"Granulate Ambrosia Beetle | Xylosandrus crassiusculus Motschulsky"},"content":{"rendered":"
California Pest Rating for<\/strong><\/h5>\n
Granulate Ambrosia Beetle\u00a0 |\u00a0\u00a0Xylosandrus crassiusculus<\/em> Motschulsky<\/h5>\n
Coleoptera: Curculionidae: Scolytinae<\/strong><\/h5>\n
Pest Rating: A<\/strong><\/h5>\n

 <\/p>\n

\n

\n

PEST RATING PROFILE<\/h3>\n

Initiating Event: <\/strong><\/h5>\n

Xylosandrus crassiusculus <\/em>is currently Q-rated.\u00a0 A permanent pest rating proposal is required to support an official pest rating.<\/p>\n

History & Status: <\/strong><\/h5>\n

Background:<\/u><\/strong>\u00a0\u00a0Xylosandrus crassiusculus<\/em> is a moderate-sized (adult females are 2-2.9 mm in length) ambrosia beetle that feeds on over 200 species of plants in 41 families, including alder, azalea, beech, cottonwood, elm, hickory, oaks, pines, maples, and carob (Sargent et al., 2008).\u00a0 It attacks both stressed and apparently healthy trees, including seedlings, and is considered a pest of ornamental trees in the United States.\u00a0 The beetle also utilizes freshly-cut wood (Sargent et al., 2008).\u00a0 Like other ambrosia beetles, the adults and larvae feed on a symbiotic fungus rather than the wood itself.\u00a0 Adult females mate with males before leaving their gallery, and they can also reproduce via arrhenotokous parthenogenesis (An unmated female lays unfertilized eggs that develop into males. The female mates with her male progeny and then deposits fertilized eggs, which develop into females) (Wood, 1982).<\/p>\n

Worldwide Distribution<\/u><\/strong>:<\/u><\/strong>\u00a0\u00a0Xylosandrus crassiusculus<\/em> is thought to be native to Southeast Asia.\u00a0 The species has been introduced to Europe, sub-Saharan Africa, Central America, South America, Hawaii, and the eastern United States (Flechtmann and Atkinson, 2016; United Kingdom Department for Environment Food & Rural Affairs, 2015).\u00a0 Specimens were collected in 1999, 2000, and (in larger numbers) 2004 at a location in Oregon.\u00a0 The source was apparently wood from the southeastern United States imported for use in railroad ties.\u00a0 This led to an eradication effort that was reported to be successful in 2010.\u00a0 In 2015 and 2016, however, more X. crassiusculus<\/em> were found in the same area, which led to another eradication effort.\u00a0 This beetle appears to have been successfully eradicated from the area by the end of 2016 (LaBonte, 2010; LaBonte, 2016; LaBonte et al., 2005).<\/p>\n

Official Control:<\/u><\/strong>\u00a0\u00a0Xylosandrus crassiusculus <\/em>does not appear to be under official control anywhere, although it is on the EPPO Alert List, and it was the subject of eradication efforts in Oregon.<\/p>\n

California Distribution:<\/u><\/strong>\u00a0\u00a0Xylosandrus crassiusculus<\/em> is not known to occur in California (Bright and Stark, 1973; Symbiota Collections of Arthropods Network).<\/p>\n

California Interceptions:<\/u><\/strong>\u00a0\u00a0Xylosandrus crassiusculus <\/em>has been intercepted on plant material (including cut flowers and foliage) from Florida and Hawaii (PDR # 023370, 1396560, 1256568, 1251403, 1252446, 053195, and 150P06086553).\u00a0 One interception was made from incense cedar boards that possibly originated in Louisiana (PDR # 1312482).<\/p>\n

The risk Xylosandrus crassiusculus <\/em>would pose to California is evaluated below.<\/p>\n

Consequences of Introduction:<\/strong><\/h5>\n

1) Climate\/Host Interaction:<\/strong> Xylosandrus crassiusculus <\/em>has become established in many areas of the world representing a wide variety of climates. The species may be limited to forests, as it feeds on wood and because the symbiotic fungus probably requires a certain range of humidity.\u00a0 The range expansion in the eastern United States has been limited to approximately the distribution of the eastern deciduous forests, but the species apparently became established at a location in Oregon before it was eradicated there, which suggests that more humid areas on the west coast would be suitable for this species (Flechtmann and Atkinson, 2016).\u00a0 The beetle feeds on many species of trees, including pines and oaks.\u00a0 All of this suggests that it could become established over a wide portion of California.\u00a0 Therefore, it receives a High (3)<\/span> <\/strong>in this category.<\/p>\n

\u2013 Low (1) Not likely to establish in California; or likely to establish in very limited areas.<\/p>\n

\u2013 Medium (2) may be able to establish in a larger but limited part of California.<\/p>\n

\u2013 High (3) likely to establish a widespread distribution in California.<\/strong><\/span><\/p>\n

2) Known Pest Host Range: <\/strong>Xylosandrus crassiusculus <\/em>is known to feed on over 200 species of plants in 41 families. A wide host range is not unusual for an ambrosia beetle, probably because the fungal symbiosis releases the beetle from some of the constraints of a more typical bark beetle lifestyle (i.e., phloem feeding).\u00a0 <\/em>Therefore, it receives a High (3)<\/span> <\/strong>in this category.<\/p>\n

\u2013 Low (1) has a very limited host range.<\/p>\n

\u2013 Medium (2) has a moderate host range.<\/p>\n

\u2013 High (3) has a wide host range.<\/strong><\/span><\/p>\n

3) Pest Dispersal Potential:<\/strong> Adult female Xylosandrus crassiusculus <\/em> Sibling mating and arrhenotokous parthenogenesis mean a single female can found a population.\u00a0 This species is evidently capable of being moved with wood shipments.\u00a0 Therefore, it receives a High (3)<\/span> <\/strong>in this category.<\/p>\n

\u2013 Low (1) does not have high reproductive or dispersal potential.<\/p>\n

\u2013 Medium (2) has either high reproductive or dispersal potential.<\/p>\n

\u2013 High (3) has both high reproduction and dispersal potential.<\/strong><\/span><\/p>\n

4) Economic Impact:<\/strong> Xylosandrus crassiusculus<\/em> is a pest of ornamental and fruit trees in the United States.\u00a0 The species causes wilting and death, especially in young trees.\u00a0 In addition, as an ambrosia beetle, crassiusculus<\/em> inoculates its galleries with a fungus that serves as food for adults and larvae.\u00a0 This fungus may not be pathogenic, but other fungi are also carried by the beetles, including known plant pathogens.\u00a0 In addition, beetle damage can allow other, opportunistic (and sometimes pathogenic) fungi to infect the tree.\u00a0 This beetle also uses cut logs for development, and is known to damage them and lower their value. \u00a0Therefore, it receives a High (3)<\/span> <\/strong>in this category.<\/p>\n

Economic Impact: A, B, E<\/span><\/strong><\/p>\n

A. The pest could lower crop yield.<\/strong><\/span><\/p>\n

B. The pest could lower crop value (includes increasing crop production costs).<\/strong><\/span><\/p>\n

C. The pest could trigger the loss of markets (includes quarantines).<\/p>\n

D. The pest could negatively change normal cultural practices.<\/p>\n

E. The pest can vector, or is vectored, by another pestiferous organism.<\/strong><\/span><\/p>\n

F. The organism is injurious or poisonous to agriculturally important animals.<\/p>\n

The organism can interfere with the delivery or supply of water for agricultural uses.<\/p>\n

Economic Impact Score: 3<\/span><\/strong><\/p>\n

\u2013 Low (1) causes 0 or 1 of these impacts.<\/p>\n

\u2013 Medium (2) causes 2 of these impacts.<\/p>\n

\u2013 High (3) causes 3 or more of these impacts.<\/strong><\/span><\/p>\n

Environmental Impact:<\/strong> Xylosandrus crassiusculus<\/em> has not been reported to have a significant impact on the environment anywhere it has been introduced. However, in tests, crassiusculus<\/em> was attracted to California bay laurel (Umbellularia californica<\/em>) and was apparently able to develop on this tree (Mayfield et al., 2013).\u00a0 Therefore, it is possible that Xyleborus crassiusculus<\/em> could pose a threat to California forests.\u00a0 In addition, this beetle is known to cause damage to ornamental trees.\u00a0 Therefore, it receives a High (3)<\/span> <\/strong>in this category.<\/p>\n

Evaluate the environmental impact of the pest on California using the criteria below.<\/p>\n

Environmental Impact: A, E<\/span><\/strong><\/p>\n

A. The pest could have a significant environmental impact such as lowering biodiversity, disrupting natural communities, or changing ecosystem processes.<\/strong><\/span><\/p>\n

B. The pest could directly affect threatened or endangered species.<\/p>\n

C. The pest could impact threatened or endangered species by disrupting critical habitats.<\/p>\n

D. The pest could trigger additional official or private treatment programs.<\/p>\n

E. The pest significantly impacts cultural practices, home\/urban gardening or ornamental plantings.<\/strong><\/span><\/p>\n

Environmental Impact Score: 3<\/span><\/strong><\/p>\n

\u2013 Low (1) causes none of the above to occur.<\/p>\n

\u2013 Medium (2) causes one of the above to occur.<\/p>\n

\u2013 High (3) causes two or more of the above to occur.<\/strong><\/span><\/p>\n

Consequences of Introduction to California for Xylosandrus crassiusculus<\/em>: High (15)<\/span><\/strong><\/h5>\n

Add up the total score and include it here.<\/p>\n

\u2013Low = 5-8 points<\/p>\n

\u2013Medium = 9-12 points<\/p>\n

\u2013High = 13-15 points<\/strong><\/span><\/p>\n

6) Post Entry Distribution and Survey Information:<\/strong> Xylosandrus crassiusculus<\/em> is not known to occur in California (Symbiota Collections of Arthropods Network).\u00a0 It receives a Not established (0)<\/span><\/strong> in this category.<\/p>\n

\u2013Not established (0) Pest never detected in California, or known only from incursions.<\/strong><\/span><\/p>\n

\u2013Low (-1) Pest has a localized distribution in California, or is established in one suitable climate\/host area (region).<\/p>\n

\u2013Medium (-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

\u2013High (-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

Final Score:<\/strong><\/h5>\n

7) The final score is<\/strong> the consequences of introduction score minus the post entry distribution and survey information score: High (15)<\/span><\/strong><\/p>\n

Uncertainty:<\/strong><\/h5>\n

Lack of evidence for environmental impact may only reflect environmental impact receiving less attention and research than economic impact, so it is possible that this species has an impact on the environment in areas to which it has been introduced.<\/p>\n

Conclusion and Rating Justification:<\/strong><\/h5>\n

Xylosandrus crassiusculus <\/em>is a highly polyphagous pest that has demonstrated an ability to become established over a wide area and has become a pest of ornamental trees.\u00a0 The species is not known to be present in California, and its potential introduction to this state poses a risk of economic and environmental damage.\u00a0 For these reasons, an \u201cA<\/strong>\u201d rating is justified.<\/p>\n

\n
References: <\/strong><\/h5>\n

Bright Jr., D.E. and R.W. Stark.\u00a0 1973.\u00a0 The Bark and Ambrosia Beetles of California.\u00a0 University of California Press.\u00a0 169 pp.<\/p>\n

European and Mediterranean Plant Protection Organization.\u00a0 2015.\u00a0 EPPO Alert List.\u00a0 Accessed February 14, 2018. http:\/\/www.eppo.int\/DATABASES\/pqr\/pqr.htm<\/a><\/p>\n

Flechtmann, C.A.H. and T.H. Atkinson.\u00a0 2016.\u00a0 First records of Xylosandrus crassiusculus<\/em> (Motschulsky) (Coleoptera: Curculionidae: Scolytinae) from South America, with notes on its distribution and spread in the New World.\u00a0 The Coleopterists Bulletin.\u00a0 70(1): 79-83.<\/p>\n

LaBonte, J.R.\u00a0 2010.\u00a0 Eradication of an ambrosia beetle, Xylosandrus crassiusculus<\/em> (Motschulsky), in Oregon.\u00a0 In (K. McManus and K.W. Gottschalk, eds.) 2010 Research Forum on Invasive Species (pp. 41-43).<\/p>\n

LaBonte, J.R.\u00a0 2016.\u00a0 Exotic wood boring insects program.\u00a0 Oregon Department of Agriculture, Plant Protection & Conservation Programs, Annual Report.\u00a0 2016: 24-25.<\/p>\n

LaBonte, J.R., Mudge, A.D., and K.J.R. Johnson.\u00a0 2005.\u00a0 Nonindigenous woodboring Coleoptera (Cerambycidae, Curculionidae: Scolytinae) new to Oregon and Washington, 1999-2002: Consequences of the intracontinental movement of raw wood products and solid wood packing materials.\u00a0 Proceedings of the Entomological Society of Washington.\u00a0 107(3): 554-564.<\/p>\n

Mayfield, A.E., MacKenzie, M., Cannon, P.G., Oak, S.W., Horn, S., Hwang, J., and P.E. Kendra.\u00a0 2013.\u00a0 Suitability of California bay laurel and other species as hosts for the non-native redbay ambrosia beetle and granulate ambrosia beetle.\u00a0 Agricultural and Forest Entomology.\u00a0 15: 227-235.<\/p>\n

Sargent, C., Raupp, M., Sardanelli, S., Shrewsbury, P., Clement, D., and M.K. Malinoski.\u00a0 2008.\u00a0 Granulate ambrosia beetle; Xylosandrus crassiusculus<\/em> Motschulsky (Coleoptera: Curculionidae: Scolytinae).\u00a0 University of Maryland Entomology Bulletin.<\/p>\n

Symbiota Collections of Arthropods Network.\u00a0 Accessed February 14, 2018. http:\/\/scan1.acis.ufl.edu<\/a><\/p>\n

United Kingdom Department for Environment Food & Rural Affairs.\u00a0 2015.\u00a0 Rapid pest risk analysis (PRA) for Xylosandrus crassiusculus<\/em>. https:\/\/secure.fera.defra.gov.uk\/phiw\/riskRegister\/downloadExternalPra.cfm?id=3939<\/a><\/p>\n

Wood, S.L.\u00a0 1982.\u00a0 The bark and ambrosia beetles of North and Central America (Coleoptera: Scolytidae), a taxonomic monograph.\u00a0 Brigham Young University.\u00a0 1359 pp.<\/p>\n

\n
Author:<\/h5>\n

Kyle Beucke, 1220 N Street, Room 221, Sacramento, CA, 95814, 916-403-6741, plant.health[@]cdfa.ca.gov<\/p>\n

Responsible Party:<\/strong><\/h5>\n

Jason Leathers, 2800 Gateway Oaks, Sacramento CA 95833, (916) 654-1211, plant.health[@]cdfa.ca.gov<\/p>\n

\n
Comment Period:* CLOSED<\/span><\/h5>\n

4\/24\/18 \u2013 6\/8\/18<\/p>\n

\n
*NOTE:<\/span><\/h5>\n

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

\n
Comment Format:<\/h5>\n

\u2666 \u00a0Comments should refer to the appropriate California Pest Rating Proposal Form subsection(s)\u00a0being commented on, as shown below.<\/p>\n

Example Comment:
\n<\/strong>Consequences of Introduction: \u00a01. Climate\/Host Interaction:\u00a0[Your comment that relates to \u201cClimate\/Host Interaction\u201d here.<\/em>]<\/p>\n

\u2666 \u00a0Posted comments will not be able to be viewed immediately.<\/p>\n

\u2666 \u00a0Comments may not be posted if they:<\/p>\n

Contain inappropriate language which is not germane to\u00a0the pest rating proposal;<\/p>\n

Contains defamatory, false, inaccurate, abusive, obscene, pornographic,\u00a0sexually oriented, threatening, racially offensive, discriminatory or illegal\u00a0material;<\/p>\n

Violates agency regulations prohibiting sexual harassment or other forms\u00a0of discrimination;<\/p>\n

Violates agency regulations prohibiting workplace violence, including threats.<\/p>\n

\u2666 \u00a0Comments may be edited prior to posting to ensure they are entirely germane.<\/p>\n

\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

\n

Pest Rating: A<\/strong><\/h3>\n

 <\/p>\n

\n

Posted by ls<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

California Pest Rating for Granulate Ambrosia Beetle\u00a0 |\u00a0\u00a0Xylosandrus crassiusculus Motschulsky Coleoptera: Curculionidae: Scolytinae Pest Rating: A   PEST RATING PROFILE Initiating Event: Xylosandrus crassiusculus is currently Q-rated.\u00a0 A permanent pest rating proposal is required to support an official pest rating. History & Status: Background:\u00a0\u00a0Xylosandrus crassiusculus is a moderate-sized (adult females are 2-2.9 mm in length) … Continue reading Granulate Ambrosia Beetle | Xylosandrus crassiusculus Motschulsky<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":325,"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":[669,15,5],"tags":[],"class_list":["post-5261","post","type-post","status-publish","format-standard","hentry","category-a-rated","category-coleoptera","category-entomology"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5l8vQ-1mR","jetpack-related-posts":[{"id":5263,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5263","url_meta":{"origin":5261,"position":0},"title":"Black Timber Bark Beetle | Xylosandrus germanus (Blandford)","author":"Kyle Beucke","date":"April 24, 2018","format":false,"excerpt":"California Pest Rating for Black Timber Bark Beetle | Xylosandrus germanus (Blandford) Coleoptera: Curculionidae: Scolytinae Pest Rating: A \u00a0 \u00a0 PEST RATING PROFILE Initiating Event: Xylosandrus germanus is currently Q-rated.\u00a0 A permanent pest rating proposal is required to support an official pest rating. History & Status: Background: Xylosandrus germanus is\u2026","rel":"","context":"In "A-Rated"","block_context":{"text":"A-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=669"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4396,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=4396","url_meta":{"origin":5261,"position":1},"title":"Ambrosia Beetle | Xylosandrus amputatus (Blandford)","author":"Jason Leathers","date":"January 11, 2018","format":false,"excerpt":"California Pest Rating for Ambrosia Beetle |\u00a0\u00a0Xylosandrus amputatus (Blandford) Coleoptera: Curculionidae Pest Rating: A \u00a0 PEST RATING PROFILE Initiating Event: The United States Department of Agriculture\u2019s Plant Epidemiology and Risk Analysis Lab has proposed changing the status of the ambrosia beetle Xylosandrus amputatus from actionable to nonactionable1.\u00a0 A pest rating\u2026","rel":"","context":"In "Coleoptera"","block_context":{"text":"Coleoptera","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=15"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5265,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5265","url_meta":{"origin":5261,"position":2},"title":"Black Twig Borer | Xylosandrus compactus (Eichhoff)","author":"Kyle Beucke","date":"April 24, 2018","format":false,"excerpt":"California Pest Rating for Black Twig Borer | Xylosandrus compactus (Eichhoff) Coleoptera: Curculionidae: Scolytinae Pest Rating: A \u00a0 PEST RATING PROFILE Initiating Event: Xylosandrus compactus is currently Q-rated.\u00a0 A permanent pest rating proposal is required to support an official pest rating. History & Status: Background: Xylosandrus compactus is a small\u2026","rel":"","context":"In "A-Rated"","block_context":{"text":"A-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=669"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1954,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=1954","url_meta":{"origin":5261,"position":3},"title":"Insects, Mites & Earthworms","author":"Admin","date":"May 13, 2016","format":false,"excerpt":"Insects and mites are related in that their skeletons are on the outside (Phyllum: Arthropoda), but differ in that adult insects have six legs and adult mites have eight.\u00a0 Both groups can be beneficial, neutral or destructive to their environment.\u00a0 Like nematodes, they can cause yearly losses in the billions\u2026","rel":"","context":"In "Ratings"","block_context":{"text":"Ratings","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=333"},"img":{"alt_text":"Insects and Mites Banner","src":"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/05\/insects-and-mites-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\/insects-and-mites-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\/insects-and-mites-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\/insects-and-mites-featured-image.jpg?fit=1038%2C588&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":8208,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=8208","url_meta":{"origin":5261,"position":4},"title":"Cyclorhipidion distinguendum (Eggers): an ambrosia beetle","author":"Kyle Beucke","date":"March 16, 2021","format":false,"excerpt":"California Pest Rating Profile for Cyclorhipidion distinguendum (Eggers): an ambrosia beetlePest Rating: C 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. Posted by tn","rel":"","context":"In "C-Rated"","block_context":{"text":"C-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=671"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5257,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5257","url_meta":{"origin":5261,"position":5},"title":"Trypodendron signatum (Fabricius)","author":"Kyle Beucke","date":"April 20, 2018","format":false,"excerpt":"California Pest Rating for\u00a0 Trypodendron signatum (Fabricius) Coleoptera: Curculionidae: Scolytinae Pest Rating: A \u00a0 PEST RATING PROFILE Initiating Event: Trypodendron signatum is currently Q-rated.\u00a0 A permanent pest rating proposal is required to support an official pest rating. History & Status: Background: Trypodendron signatum is an ambrosia beetle that ranges in\u2026","rel":"","context":"In "A-Rated"","block_context":{"text":"A-Rated","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=669"},"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\/5261","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\/325"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5261"}],"version-history":[{"count":4,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/5261\/revisions"}],"predecessor-version":[{"id":5475,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=\/wp\/v2\/posts\/5261\/revisions\/5475"}],"wp:attachment":[{"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}