{"id":5142,"date":"2018-04-10T11:24:05","date_gmt":"2018-04-10T18:24:05","guid":{"rendered":"http:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5142"},"modified":"2018-05-29T14:44:11","modified_gmt":"2018-05-29T21:44:11","slug":"false-trochanter-mealybug-pseudococcus-dolichomelos","status":"publish","type":"post","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=5142","title":{"rendered":"False Trochanter Mealybug | Pseudococcus dolichomelos"},"content":{"rendered":"
California Pest Rating\u00a0 for<\/h5>\n
False Trochanter Mealybug | Pseudococcus dolichomelos <\/em>Gimpel and Miller<\/h5>\n
Hemiptera: Pseudococcidae<\/h5>\n
Pest Rating: A<\/h5>\n

\u00a0<\/strong><\/p>\n

\n

\n

PEST RATING PROFILE<\/h3>\n

Initiating Event:<\/h5>\n

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

History & Status:<\/h5>\n

Background:<\/u><\/strong> \u00a0<\/em>This mealybug is found underground on the roots and crown of its host plants (Gimpel and Miller, 1996).\u00a0 It presumably feeds on roots.\u00a0 It has been associated with plants in at least 12 families: Amaryllidaceae, Asteraceae, Euphorbiaceae, Fabaceae, Hypericaceae, Onagraceae, Poaceae, Polygonaceae, Rosaceae, Solanaceae, Urticaceae, and Zingiberaceae (Garc\u00eda Morales et al., 2016).\u00a0 The biology of this recently-described (1996) species is poorly known.<\/p>\n

Worldwide Distribution<\/u><\/strong>:<\/u><\/strong>\u00a0 Pseudococcus dolichomelos <\/em>occurs in the eastern United States (Florida, Louisiana, Maryland, Michigan, New York, North Carolina, South Carolina, Texas, Utah, Washington, D.C., and West Virginia) and Hawaii (Garc\u00eda Morales et al., 2016; Gimpel and Miller, 1996; von Ellenrieder and Watson, 2016).<\/p>\n

Official Control:<\/u><\/strong> Pseudococcus dolichomelos <\/em>does not appear to be under official control anywhere.<\/p>\n

California Distribution: <\/u><\/strong>\u00a0Pseudococcus dolichomelos <\/em>is not known to occur in California (Symbiota Collections of Arthropods Network).<\/p>\n

California Interceptions:<\/u><\/strong>\u00a0 Pseudococcus dolichomelos <\/em>has been intercepted in California associated with cut flowers of Alpinia purpurata<\/em>, Oncidium<\/em> sp., and Zingiber <\/em>sp. from Hawaii (PDR # 1367825, 1367535, 070P06137999, and 100P06282530), peaches from Utah (PDR # TR0P06024371), and primrose plants from Florida (PDR # 370P06678226).<\/p>\n

The risk Pseudococcus dolichomelos wo<\/em>uld pose to California is evaluated below.<\/p>\n

Consequences of Introduction:<\/h5>\n

1) Climate\/Host Interaction:<\/strong> Pseudococcus dolichomelos <\/em>occurs over a wide portion of the United States, including areas with temperate (e.g., Michigan) as well as tropical\/subtropical (e.g., Hawaii, south Texas) climates. This suggests that this species is capable of becoming established over a wide portion of California. It has been associated with a wide variety of plants in 12 families, so it is not expected to be limited by distribution of potential host plants.\u00a0 Therefore, Pseudococcus dolichomelos <\/em>receives a High (3)<\/strong><\/span> 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) <\/strong>likely to establish a widespread distribution in California.<\/span><\/p>\n

2) Known Pest Host Range: <\/strong>Pseudococcus dolichomelos <\/em>has been associated with, and presumably feeds on at least 12 families of plants. Therefore, it receives a High (3)<\/strong> <\/span>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) <\/strong>has a wide host range.<\/span><\/p>\n

3) Pest Dispersal Potential:<\/strong> Pseudococcus dolichomelos<\/em> has been intercepted multiple times on cut flowers and other commodities, so it is evidently capable of being spread artificially on infested plants.\u00a0 Therefore, it receives a Medium (2)<\/strong> <\/span>in this category.<\/p>\n

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

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

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

4) Economic Impact:<\/strong> Root-feeding mealybugs include species that are pests of food and ornamental plants.\u00a0 However, dolichomelos<\/em> is not known to be an economic pest anywhere it is known to occur, even though it occurs over a wide area.\u00a0 Therefore, it receives a Low (1)<\/span> <\/strong>in this category.<\/p>\n

Economic Impact:<\/p>\n

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

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

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

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

Economic Impact Score: 1<\/span><\/strong><\/p>\n

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

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

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

5) Environmental Impact:<\/strong> Root-feeding mealybugs have the potential to impact the health of plants, as demonstrated by the fact that some are economically-significant pests. If Psuedococcus dolichomelos<\/em> became established in California, it would encounter species of native plants, including many rare ones, that it has not previously been exposed to.\u00a0 It is possible that it could have an impact of some of these plants.\u00a0 Therefore, it receives a Medium (2)<\/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<\/span><\/strong><\/p>\n

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

Environmental Impact Score: 2<\/span><\/strong><\/p>\n

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

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

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

Consequences of Introduction to California for Pseudococcus dolichomelos<\/em>: Medium (11)<\/span><\/strong><\/p>\n

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

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

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

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

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

\u2013Not established (0) <\/strong>Pest never detected in California, or known only from incursions.<\/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:<\/h5>\n

7) The final score is<\/strong> the consequences of introduction score minus the post entry distribution and survey information score: Medium (11)<\/span><\/strong><\/p>\n

Uncertainty:<\/h5>\n

The most important uncertainty regarding this species is its ability to significantly impact the health of plants; this has not been shown to be the case anywhere it currently occurs.<\/p>\n

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

Pseudococcus dolichomelos<\/em> is a root-feeding mealybug with a broad host range.\u00a0 It is not known to occur in California, but it is likely capable of becoming established over a large portion of the state.\u00a0 If this was to occur, it is not likely to become an economic pest, but there is a chance that it could impact the environment.\u00a0 For these reasons, an \u201cA\u201d rating is justified.<\/p>\n

\n
References:<\/h5>\n

Garc\u00eda Morales, M., Denno, B.D., Miller, D.R., Miller, G.L., Ben-Dov, Y., and Hardy, N.B. 2016. ScaleNet: A literature-based model of scale insect biology and systematics.\u00a0 Accessed November 7, 2017.\u00a0\u00a0http:\/\/scalenet.info<\/a>.<\/p>\n

Gimpel, W. F. and Miller, D.R. 1996. Systematic analysis of the mealybugs in the Pseudococcus maritimus<\/em> complex (Homoptera: Pseudococcidae). In (B.K. Gupta, ed.) Contributions on Entomology, International (pp. 38-42).\u00a0 Associated Publishers.\u00a0 Gainesville, Florida.\u00a0 163 pp.<\/p>\n

Symbiota Collections of Arthropods Network.\u00a0 Accessed March 7, 2018.\u00a0http:\/\/scan1.acis.ufl.edu<\/a><\/p>\n

von Ellenrieder, N., and Watson, G.\u00a0 2016.\u00a0 A new mealybug in the genus Pseudococcus<\/em> Westwood (Hemiptera: Coccomorpha: Pseudococcidae) from North America, with a key to species of Pseudococcus<\/em> from the New World.\u00a0 Zootaxa.\u00a0 4105: 65-87.<\/p>\n

\n
Author:<\/h5>\n

Kyle Beucke, 1220 N Street, Room 221, Sacramento, CA, 95814, 916-403-6741,\u00a0plant.health[@]cdfa.ca.gov<\/p>\n

\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\/10\/18 \u2013 5\/25\/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<\/h3>\n
\n

Posted by ls\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

California Pest Rating\u00a0 for False Trochanter Mealybug | Pseudococcus dolichomelos Gimpel and Miller Hemiptera: Pseudococcidae Pest Rating: A \u00a0 PEST RATING PROFILE Initiating Event: Pseudococcus dolichomelos is currently Q-rated.\u00a0 A permanent pest rating proposal is required to support an official pest rating. History & Status: Background: \u00a0This mealybug is found underground on the roots and … Continue reading False Trochanter Mealybug | Pseudococcus dolichomelos<\/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":[669,18,5],"tags":[],"class_list":["post-5142","post","type-post","status-publish","format-standard","hentry","category-a-rated","category-hemiptera","category-entomology"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5l8vQ-1kW","jetpack-related-posts":[{"id":2312,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=2312","url_meta":{"origin":5142,"position":0},"title":"Pseudococcus jackbeardsleyi Gimpel and Miller: Jack Beardsley mealybug","author":"Jason Leathers","date":"July 26, 2016","format":false,"excerpt":"California Pest Rating for Pseudococcus jackbeardsleyi Gimpel and Miller:\u00a0 Jack Beardsley mealybug Hemiptera:\u00a0 Pseudococcidae Pest Rating: \u00a0A PEST RATING PROFILE Initiating Event: Since 1999 Pseudococcus jackbeardsleyi has been regularly intercepted by CDFA\u2019s border stations and dog teams.\u00a0 This mealybug presently has a temporary rating of \u201cQ\u201d.\u00a0 A pest rating proposal\u2026","rel":"","context":"In "Hemiptera"","block_context":{"text":"Hemiptera","link":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?cat=18"},"img":{"alt_text":"jackbeardsleymealybug-idtools-gallery","src":"https:\/\/i0.wp.com\/blogs.cdfa.ca.gov\/Section3162\/wp-content\/uploads\/2016\/07\/jackbeardsleymealybug-idtools-gallery2.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":8628,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=8628","url_meta":{"origin":5142,"position":1},"title":"Pseudococcus landoi (Balachowsky): Lando mealybug","author":"Kyle Beucke","date":"July 1, 2021","format":false,"excerpt":"California Pest Rating Profile for Pseudococcus landoi (Balachowsky): Lando mealybugPest Rating: A download pest rating profile *NOTE You must be registered and logged in to post a comment. 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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":724,"url":"https:\/\/blogs.cdfa.ca.gov\/Section3162\/?p=724","url_meta":{"origin":5142,"position":3},"title":"Pseudococcus elisae Borchsenius: Banana Mealybug","author":"Jason Leathers","date":"April 7, 2015","format":false,"excerpt":"California Pest Rating for Pseudococcus elisae Borchsenius: Banana Mealybug Hemiptera: Pseudococcidae Pest\u00a0Rating: \u00a0A PEST RATING PROFILE Initiating Event: Pseudococcus elisae is frequently intercepted by CDFA and requires a pest rating proposal to support its pest rating. 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