FDACS DPI Tri-Ology Volume 51, Number 3, May - June 2012

FDACS DPI Tri-ology Volume 51, Number 3, May - June 2012

DACS-P-00124 Volume 51, Number 3, May - June 2012 Printer-Friendly PDF Version

DPI's Bureau of Entomology, Nematology and Plant Pathology (the botany section is included in this bureau) produces TRI-OLOGY six times a year, covering two months of activity in each issue. The report includes detection activities from nursery plant inspections, routine and emergency program surveys, and requests for identification of plants and pests from the public. Samples are also occasionally sent from other states or countries for identification or diagnosis.

Highlights Following are a few of the notable entries from this volume of TRI-OLOGY. These entries Section Reports are reports of interesting plants or unusual pests, some of which may be problematic. See Section Reports for complete information. Botany

Megacopta cribraria, bean plataspid, a new Entomology Florida State Record. This species represents a new Nematology family of stink bugs in North America, the Plataspidae. The species was reported for the first time in the Plant Pathology Western Hemisphere in 2009 when a population was found feeding on kudzu (Pueraria montana) in Our Mission…getting it done northern Georgia. Please see our Pest Alert on this species: http://www.freshfromflorida.com/pi/pest- The mission of the Division of alerts/megacopta-cribraria.html. Plant Industry is to protect Florida’s native and Xyleborus similis, a Megacopta cribraria, commercially grown plants and scolytid beetle, a bean plataspid the State’s apiary industry new Florida State Photograph courtesy of Bradley A. Danner, from harmful pests and Record. This species is DPI/CAPS diseases. The Division employs an ambrosia beetle in a team of scientists to help the sub-tribe carry out this mission by Xyleborina. Xyleborus similis has been Xyleborus similis, a scolytid identifying pests that appear on beetle associated with the phytopathogen Fusarium Florida’s plants. Because there Photograph courtesy of Katherine solani and implicated in the spread of a canker- E. Okins, DPI/CAPS are so many pathways for producing disease among teak trees in India. pests to arrive in Florida, from storm winds to the baggage of Stictocephala diceros, a treehopper, a new international travelers as well Florida State Record. This is a relatively common as imported plants, our non-pest species in the northeastern and scientists are often asked to midwestern United States. Although found on many travel to other countries, to plant species, its primary host appears to be train, learn from, and Sambucus canadensis. collaborate with other Xiphinema specialists.

americanum sensu Stictocephala diceros, a DPI Nematologist Jason lato Cobb, 1913, treehopper Photograph courtesy of Mark Stanley, was recently invited to American dagger J. Rothschild, FSCA Research England by regulatory and nematode, was Associate consulting nematologists from found damaging the FERA (The Food and roots of Ulmus parvifolia (Chinese elm or lacebark Environment Research Agency) elm) an ornamental tree. http://dpi-test/enpp/triology/5103/triology_5103_index.html[10/25/2012 11:05:42 AM] FDACS DPI Tri-ology Volume 51, Number 3, May - June 2012

in York. His purpose in visiting Xiphinema americanum sensu lato (American dagger Clerodendrum was to collaborate with other nematode) quadriloculare nematologists and to learn Photograph courtesy of Jason D. Stanley, DPI (Blanco) Merr. their approaches to regulation (starburst and control of the potato cyst flower, shooting nematode (Globodera spp.). star). This species is native to the Philippines While Jason was there, he and can be found as a striking ornamental in visited the FERA site where the South Florida gardens. administration for the England Potexvirus Clerodendrum quadriloculare and Wales plant health service (starburst flower) resides. He also visited the Alternanthera Photograph courtesy of Wendy mosaic virus Cutler, Wikipedia FERA Nematology team to (Alternanthera observe techniques used for mosaic virus), a new Host Record. This nematode extraction and mechanically transmitted virus had not been identification for all regulated found on Phlox previously. nematode pests including potato cyst nematodes. In Phlox drummondii (annual addition, he met Plant Health phlox) and Seeds Inspectors to Photograph courtesy of Bob Acknowledgements: Bierman, Atlas of Florida Vascular discuss and observe the Plants The editors would like to acknowledge the work European Union PCN Directive, of all those who contributed information and seed potato certification explanations by providing data, photographs or program, and seed potato text and by carefully reading early drafts. We also thank Scott Weinberg for his classification and grading skillful use of web authoring tools to produce this report. scheme.

International collaboration is a significant component of controlling invasive pests and diseases and safeguarding agriculture. Therefore, Jason concluded his trip by visiting the Plant Health Imports Inspector at the Manchester International Airport to see inspection of agricultural imports from around the world. Detection of invasive pests and diseases occurs most often through inspection at airports and seaports, making it critical for scientists throughout the world to collaborate and improve techniques for identifying and regulating plant pests.

We welcome your suggestions for improvement of TRI- OLOGY. Please feel free to contact me or Dr. Patti Anderson with your comments.

Dr. Wayne N. Dixon, editor

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Assistant Director, DPI

http://dpi-test/enpp/triology/5103/triology_5103_index.html[10/25/2012 11:05:42 AM] FDACS DPI Tri-ology May - June 2012: Botany Section

DACS-P-00124 Volume 51, Number 3, May - June 2012 Printer-Friendly PDF Version

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Botany Section Compiled by Patti J. Anderson, Ph.D. Sample Submissions This section identifies plants for the Division of Plant Industry, as well as for other May/ Year to governmental agencies and private individuals. The Botany Section maintains a Jun Date reference herbarium with over 11,000 plants and nearly 1,400 vials of seeds. Some of Samples 1,524 4,247 the samples received for identification are discussed below: submitted by other DPI Clerodendrum quadriloculare (Blanco) Merr. (starburst flower, sections shooting star), from a genus of approximately 250 tropical and warm temperate species, especially concentrated in Africa and Asia. Verbenaceae Samples 130 334 (but treated as Lamiaceae in recent taxonomic revisions). This species is submitted for native to the Philippines and can be found as a striking ornamental in South botanical Florida gardens. The young stems of this tall (to 4 m) shrub are four- identification only angled, as is typical with many Verbenaceae and Lamiaceae. The simple, Total Samples 1,654 4,581 opposite, lanceolate leaves, up to 25 cm long, are of ornamental value, Submitted having dark green upper surfaces and deep purple undersides. The terminal inflorescences are cymose, with large showy clusters of tubular flowers. The Specimens added 42 139 calyx is campanulate with five lobes. The five-lobed, pink corolla has a to the herbarium slender reddish tube. The fruit is a drupe with four pyrenes (stones), each containing a single seed. This plant produces abundant suckers from roots and can become a pest if not carefully managed. The species has been identified as a potential ecological risk in Hawaii, but not in Florida. The spectacular flower clusters are attractive to butterflies. (Orange County; B2012-247; Stacey S. Simmons; 21 May 2012 and Miami-Dade County; B2012-318; Juan Garcia Lopez; 20 June 2012.) (Llamas 2003; Mabberley 2008; Staples and Herbst 2005; http://www.efloras.org/ accessed 11 July 2012; ftp://ftp- fc.sc.egov.usda.gov/HI/pub/technotes/Range_%26_Pasture/RP_TechNote _3/20_TechNote3_FactSheet-20_Clerodendrum_quadriloculare.pdf accessed 13 August 2012.)

Dioscorea floridana Bartlett (Florida yam), from a genus of over 600 Clerodendrum quadriloculare (starburst flower) tropical and warm temperate species. Dioscoreaceae. This vine, native to Photograph courtesy of Wendy Cutler, South Carolina, Georgia and Florida, is in the family of the edible yam and Wikipedia the invasive air potato. Our native is a low-growing vine, seldom growing more than 3 m high, and does not produce bulbils (aerial tubers). These twining vines grow from yellowish rhizomes. The cordate to deltate leaves are alternate, with an entire margin and acuminate apex. Separate staminate and pistillate inflorescences are borne in the leaf axils. Tepals of male and female flowers are yellowish orange, 1-2 mm long. The fruits are more conspicuous, with three-winged, gold-colored capsules. This species grows in both wet and dry areas, including swamp edges, hammocks and sandy areas. The species was at one time considered a variety of D. villosa L. and is clearly closely related to that species. The two can be distinquished by orange dots that appear on the tepals of D. villosa, but not D. floridana. Both contain similar phytochemicals, including steroidal saponins, common to the genus and used medicinally. (Alachua County;

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B2012-323; Cheryl A. Jones; 22 June 2012.) (Austin 2004; Wunderlin and Hansen 2011; http://www.efloras.org/ accessed 11 July 2012.)

Nauclea orientalis (L.) L. (kanluang, Leichhardt tree, cheesewood; Canary cheesewood), from a genus of nine species in the Old World tropics. Rubiaceae. This species is a small tree to 12 m tall with whorled branchlets and furrowed bark. The wood of the tree has a yellow-orange Clerodendrum quadriloculare (leaf) Photograph courtesy of Forest and Kim Starr hue (hence the common name “cheesewood”) and is valued for carving and timber. The glossy green leaves grow to 25 cm long, 15 cm wide. They are glabrous, with undulate margins and prominent yellow veins on the undersides. The petioles are up to 4 cm long with persistent interpetiolar stipules 1-3.5 cm long. The inflorescence is a pedunculate globose head with a striking array of contrasting colors. The individual flowers have funnelform corollas, with a yellow to orange tube about 8 mm long, and white styles and stigmas. The fruits, which have a rough, wrinkled outer surface, are about 4-5 cm in diameter. The flowers resemble those of the Florida native Cephalanthus occidentalis or common buttonbush. This species is native to Australia, Indonesia, Malaysia and Thailand and is found in rainforests and swamps and in drier forests and shrublands. The plant Dioscorea floridana (Florida yam) has been used both medicinally and as a fish poison. (Palm Beach County; Photograph courtesy of Shirley Denton, Atlas B2012-293; Ellen J. Tannehill; 11 June 2012.) (Huxley 1992; of Florida Vascular Plants http://keys.trin.org.au/key-server/data/0e0f0504-0103-430d-8004- 060d07080d04/media/Html/taxon/ Nauclea_orientalis.htm accessed 16 August 2012; www.worldagroforestry.org accessed 16 August 2012.)

Vaccinium stamineum L. (deerberry), from a genus of about 140 species native to the Northern Hemisphere, mainly in temperate areas. Ericaceae. These shrubs are usually no more than 2 m tall, but have been reported to be as much as 5 m high. They can form suckers from the roots and produce colonies. The alternate leaves are variable and may be green to blue-green (glaucous) and glabrous or pubescent, with a somewhat serrate or entire margin. The inflorescence is usually a raceme, but single, axillary flowers occur. The flower is similar to other “blueberry-like” flowers, those in the genus Vaccinium, with white, campanulate (bell-shaped) corollas, but they differ in having stamens exerted. Each flower has 10 stamens that hang downward from the open, five-lobed corolla. The berries (7-18 mm wide) can be pale green, yellowish, to purple when mature and often have a white, waxy bloom on the surface. These native plants grow Dioscorea floridana (Florida yam) Photograph courtesy of Troy University from the Panhandle as far south as Lake Okeechobee in Florida, usually in Herbarium, Alabama Plant Atlas sandy, well-drained soils. They are also native to Ontario and the eastern United States from Maine south and west to Kansas, Oklahoma and Texas.

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(Putnam County; B2012-309; Sol F. Looker; 20 June 2012.) (Luteyn et al. 1996; http://www.duke.edu/~cwcook/trees/vast.html accessed 11 July 2012; http://www.npwrc.usgs.gov/resource/ plants/floraso/species/5/vaccstam.htm accessed 11 July 2012.)

References Austin, D. F. 2004. Florida Ethnobotany. CRC Press, Boca Raton, Florida. 909 p. Huxley, A.J. (editor). 1992. The new Royal Horticultural Society Nauclea orientalis (Leichhardt tree) Photograph courtesy of Tony Rodd, Wikimedia dictionary of gardening. 4 volumes. Macmillan Press. London, England. 3,240 p. Llamas, K.A. 2003. Tropical flowering plants: a guide to identification and cultivation. Timber Press. Portland, Oregon. 423 p. Luteyn, J. L., W. S. Judd, S. P. Vander Kloet, L. J. Dorr, G. D.Wallace, K. A. Kron, P. F. Stevens and S. E. Clemants. 1996. Ericaceae of the southeastern United States. Castanea 61:101-144. Mabberley, D.J. 2008. Mabberley’s plant-book: a portable dictionary of plants, their classification and uses, 3rd edition. Cambridge University Press, New York, New York. 1,021 p. Staples, G.W. and D.R. Herbst. 2005. A tropical garden flora: plants cultivated in the Hawaiian Islands and other tropical places. Bishop Museum Press, Honolulu, Hawaii. 908 p. Vaccinium stamineum L. (deerberry) flowers Wunderlin, R. P. and B. F. Hansen. 2011. Guide to the vascular plants Photograph courtesy of Shirley Denton, Atlas of Florida, 3rd edition. University Press of Florida, Gainesville, Florida. of Florida Vascular Plants 783 p.

Vaccinium stamineum L. (deerberry) fruit Photograph courtesy of Will Cook, Duke University

http://dpi-test/enpp/triology/5103/triology_5103_botany.html[10/25/2012 11:05:44 AM] FDACS DPI Tri-ology May - June 2012: Entomology Section

DACS-P-00124 Volume 51, Number 3, May - June 2012 Printer-Friendly PDF Version

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Entomology Section Compiled by Susan E. Halbert, Ph.D. Sample/Specimen This section provides the division's plant protection specialists and other customers Submissions with accurate identifications of arthropods. The entomology section also builds and May maintains the arthropod reference and research collection (the Florida State Collection of Arthropods with over 9 million specimens), and investigates the biology, biological Samples Submitted 1,055 control and taxonomy of arthropods. Specimens Identified 14,921 Cosmobaris americana, a weevil, a new Florida State Record. This species, also known as the beet petiole borer, is widespread in the United June States and Canada. It feeds on betaceous crops and broad-leafed weeds Samples Submitted 785 such as sunflower (Helianthus annuus). It does not appear to be a Specimens Identified 9,410 significant pest. (Duval County; E2012-4062; Jacqueline Gobble, Customs and Border Patrol; 27 March 2012.) (Katherine E. Okins.) Year to Date

Megacopta cribraria, bean plataspid, a new Florida State Record. Samples Submitted 4,954 This species represents a new family of stink bugs in North America, the Specimens Identified 76,060 Plataspidae. The species was reported for the first time in the Western Hemisphere in 2009 when a population was found feeding on kudzu (Pueraria montana) in northern Georgia. The bugs are damaging to kudzu. Unfortunately, they also feed on important commercial legume crops, particularly soybean. Please see our Pest Alert on this species: http://www.freshfromflorida.com/pi/pest-alerts/megacopta-cribraria.html. (Leon County; E2012-3191; Nina Y. Zagvazdina; Dyrana N. Russell- Hughes, DPI/CAPS; Susan E. Halbert; M. Andrew Jansen; Ana C. C. Silva; Leroy A. Whilby, DPI/CAPS; and Bradley A. Danner, DPI/CAPS; 2 May 2012.) (Dr. Susan E. Halbert.)

Stictocephala diceros, a treehopper, a new Florida State Record. This is a relatively common non-pest species in the northeastern and midwestern United States. Previous published records placed it no nearer to Florida than Cosmobaris americana, a weevil Tennessee, North Carolina and Texas. Although found on many plant Photograph courtesy of Katherine E. Okins, species, its primary host appears to be Sambucus canadensis. (Jefferson DPI/CAPS County; E2012-3272; Susan E. Halbert; Dyrana N. Russell-Hughes, DPI/CAPS; M. Andrew Jansen; Ana C. C. Silva; Nina Y. Zagvazdina; Leroy A. Whilby, DPI/CAPS; and Bradley A. Danner, DPI/CAPS; 2 May 2012.) (Mark J. Rothschild, FSCA Research Associate.)

Xyleborus similis, a scolytid beetle, a new Florida State Record. This species is an ambrosia beetle in the sub-tribe Xyleborina. It has been recorded from Africa, tropical Asia, Australia and Micronesia. It has been reported to be established in Texas since 2006. Xyleborus similis has been associated with the phytopathogen Fusarium solani and implicated in the spread of a canker-producing disease among teak trees in India. However,

it is not known to attack healthy trees. Its status as a significant pest is Megacopta cribraria, bean plataspid unconfirmed, but the risk of establishment should be considered serious. Photograph courtesy of Bradley A. Danner, DPI/CAPS (Hillsborough County; E2102-4060; F. Marcos Parilla, Customs and Border Patrol; 9 March 2012.) (Katherine E. Okins.) http://dpi-test/enpp/triology/5103/triology_5103_entomology.html[10/25/2012 11:05:45 AM] FDACS DPI Tri-ology May - June 2012: Entomology Section

Anastrepha ocresia, a fruit fly. This species has been collected very rarely in Florida. Earliest records were from the Florida Keys in the 1930s. The most recent previous record was in 1972 from Key West. Broader distribution records include Cuba, Dominican Republic, Jamaica and Puerto Rico. It has been reared from Manilkara zapota in the Greater Antilles. (Sarasota County; E2012-4671; Victor L. Reaume, USDA/APHIS/PPQ; 13 June 2012.)(Drs. Craig H. Welch and Gary J. Steck.)

Stictocephala diceros, a treehopper Photograph courtesy of Mark J. Rothschild, FSCA Research Associate

Xyleborus similis, a scolytid beetle Photograph courtesy of Katherine E. Okins, DPI/CAPS Entomology Specimen Report Following are tables with entries for records of new hosts or new geographical areas for samples identified in the current volume's time period as well as samples of special interest. An abbreviated table, with all the new records, but less detail about them, is presented in the body of this web page and another version with more complete data is downloadable as a PDF or an Excel spreadsheet.

The tables are organized alphabetically by plant host if the specimen has a plant host. Some arthropod specimens are not collected on plants and are not necessarily plant pests. In the table below, those entries that have no plant information included are organized by arthropod name.

Download full spreadsheet in PDF format

Download full spreadsheet in Microsoft Excel format

Anastrepha ocresia, a fruit fly Photograph courtesy of Gary J. Steck, DPI

Plant Species Plant Common Arthropod Species Arthropod Common Name Name Name Name County New Records

Abelia x grandiflora glossy abelia Lehmannia valentiana three-banded garden Seminole REGULATORY slug INCIDENT

Adonidia merrillii Christmas palm; Panonychus citri citrus red mite Duval HOST Manila palm

Albizia julibrissin mimosa Phyllomydas parvulus a mydid fly Highlands COUNTY

Alyogyne huegelii lilac hibiscus, blue Coccus hesperidum brown soft scale Collier HOST hibiscus, purple

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hibiscus

Alyogyne huegelii lilac hibiscus, blue Pinnaspis strachani lesser snow scale Collier HOST hibiscus, purple hibiscus

Apium graveolens celery Cavariella aegopodii carrot aphid Suwannee INTERDICTION INTERCEPTION

Apium graveolens celery Deltocephalus a leafhopper Escambia INTERDICTION fuscinervosus INTERCEPTION

Bacopa caroliniana blue waterhyssop Trialeurodes abutiloneus bandedwinged whitefly Hillsborough HOST

Bougainvillea sp. bougainvillea Anastrepha ocresia N/A Sarasota ARTHROPOD OF INTEREST

Brassica juncea mustard greens; leaf Chlorochroa uhleri a stink bug Escambia INTERDICTION mustard; Indian INTERCEPTION mustard; brown mustard

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DACS-P-00124 Volume 51, Number 3, May - June 2012 Printer-Friendly PDF Version

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Nematology Section Compiled by Jason D. Stanley, M.S., Renato N. Inserra, Ph.D. and Janete A. Brito, Sample Submissions Ph.D. May/ Year to This section analyzes soil and plant samples for nematodes, conducts pest detection Jun Date surveys and provides diagnoses of plant problems, in addition to completing Morphological 2,302 6,355 identification of plant parasitic nematodes involved in regulatory and certification Identifications programs. State of Florida statutes and rules mandate the predominant regulatory activities of the section. Analyses of plant and soil samples include those from in-state Molecular 112 1,178 programs, plant shipments originating in Florida destined for other states and Identifications countries, as well as samples intercepted in Florida from outside the United States. Total Samples 2,414 7,533 Nematodes of Special Interest Submitted Certification and Regulatory Xiphinema americanum sensu lato Cobb, 1913, American dagger Samples nematode, was found damaging the roots of Ulmus parvifolia (Chinese elm or lacebark elm) an ornamental tree. (Marion County; N12-00472; Charles Multistate 1,670 4,662 L. Spriggs; 27 April 2012.) Certification for National and The American dagger nematode, Xiphinema americanum Cobb, 1913, is International widespread in the eastern United States. In Florida, X. americanum is Export commonly detected on many tree species, including laurel oak trees California 437 1,123 (Quercus laurifolia) (Christie 1959). This dagger nematode is a vector of Certification plant damaging viruses including cherry rasp leaf, peach rosette mosaic, tobacco and tomato ring spot. The American dagger nematode species use Pre-movement 34 110 their relatively long stylets to feed from the surface of the root tips causing (Citrus Nursery swellings and curly tips. Certification) Site or Pit 0 41 Taxonomic studies using both morphological and molecular analyses have Approval (Citrus shown that X. americanum consists of more than 10 separate species that Nursery and form a group indicated as X. americanum sensu lato. The identity of these Other dagger nematodes occurring in Florida is under study by DPI nematologists. Certifications) During a nematode survey conducted in tree farms in North Florida, X. americanum population levels of 20-30 specimens /100 cm3 of soil were Other Samples detected in the rhizosphere of elm and maple (Acer spp.) trees. Elm trees exposed to these populations showed swollen and stubby root tips. Identifications 2 20 (invertebrate) The species belonging to X. americanum group are regulated by many Plant Problems 32 92 countries as well as the European Union. These regulations are enacted in order to protect the fruit, tree nut and vineyard industries from the damage Intrastate Survey, 127 307 that these nematodes and the viruses they transmit may cause. Random

Molecular 112 1,178 Collectors submitting five or more samples that were processed Identifications* for nematological analysis in May - June 2012 *The majority of these analyses Anderson, James L. 31 involved root-knot nematode species

Bailey, W. Wayne 8

Bentley, Michael A. 59

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Brodie, Matthew W. 26

Burgos, Frank A. 251

Edenfield, Carrie S. 53

LeBoutillier, Karen W. 248

Ochoa, Ana L. 107

Qiao, Ping 213

Spriggs, Charles L. 84

Terrell, Mark R. 8 Xiphinema americanum sensu lato (American dagger nematode) female Toral, Angelina M. 8 Photograph courtesy of J.D. Stanley, DPI

References Christie, J. R. 1959. Plant Parasitic Nematodes: Their Bionomics and Control. Agricultural Experiment Station, University of Florida, Gainesville, Florida. 256 p.

Xihinema americanum sensu lato (American dagger nematode) Damaging effect induced on Ulmus parviflora roots. Note swollen and stubby root tips (arrows). Photograph courtesy of J.D. Stanley, DPI

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Plant Pathology Section Compiled by Timothy S. Schubert, Ph.D. and David A. Davison, M.S. Sample Submissions This section provides plant disease diagnostic services and conducts a citrus May/ Year to germplasm introduction program. The agency-wide goal of protecting Florida Jun Date agriculture very often begins with accurate diagnosis of plant problems. Disease Pathology 597 1,401 management recommendations are offered where appropriate and available. Our plant pathologists are dedicated to keeping informed about plant diseases outside Florida in Bee 1 4 order to be prepared for potential introductions of new pathogens. Black Spot 2 52

Potexvirus Alternanthera mosaic virus (Alternanthera mosaic virus), Box Blight 0 16 a new Host record. This mechanically transmitted virus had not been Citrus Canker 295 643 found on Phlox previously. First seen on Alternanthera in Australia, it is now known to infect ornamental plants in the northeastern United States, Italy, Citrus Greening 942 2,837 and relatively recently, Florida. Crops may also be infected by this virus. Interdictions 12 82 (Alachua County; P2012-62633; Cheryl A. Jones; 10 May 2012.) Laurel Wilt 23 62

Raffaelea lauricola (Laurel wilt) was found on Persea borbonia (red Soil 9 41 bay), a new County record. Laurel wilt has now reached the Florida Gulf Sweet Orange 4 12 Coast in the Big Bend area. The infected tree was growing at a residence. Scab-like Disease See DPI Pest Alert for additional information. (Dixie County; P2012-63615; Jeffrey M. Eickwort; 18 June 2012.) Water 3 25

References Miscellaneous 3 15 Baker, C. A., L. Breman and L. Jones. 2006. Alternanthera mosaic virus Total Samples 1,891 5,190 found in Scutellaria, Crossandra and Portulaca spp. in Florida. Plant Submitted Disease 90: 833. Laurel Wilt (Raffaelea lauricola) information page, National Agricultural Pest Information System, (accessed 1 August 2012).

Phlox drummondii (annual phlox) Photograph courtesy of Bob Bierman, Atlas of Florida Vascular Plants

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Persea borbonia (red bay) ambrosia beetle sawdust on redbay Photograph courtesy of Albert E. Mayfield III, Florida Forest Service

Plant Pathology Sample Report Following is a table with entries for records of new hosts or new geographical areas for samples identified in the current volume's time period as well as samples of special interest. The table is organized alphabetically Persea borbonia (red bay) suffering from by plant host. laurel wilt infection Photograph courtesy of Albert E. Mayfield III, Florida Forest Service

Plant Common Disease New Plant Species Name Causal Agent Name Location County Log # Collector Date Records

Arachis glabrata perennial Cucumovirus peanut Peanut stunt nursery 62520 Nassau Lisa M. 5/7/2012 County peanut stunt virus virus Hassell Impatiens impatiens Plasmopara Impatiens nursery 62610 Duval Lisa M. 5/9/2012 County walleriana obducens downy mildew Hassell Lobelia cardinalis cardinal flower Cucumovirus Cucumber nursery 62650 Alachua Cheryl A. 5/10/2012 Host cucumber mosaic mosaic virus Jones virus Persea borbonia red bay Raffaelea lauricola Laurel wilt residence 63615 Dixie Jeffrey 6/18/2012 County Eickwort Phlox drummondii annual phlox Potexvirus Alternanthera nursery 62633 Alachua Cheryl A. 5/10/2012 Host Alternanthera mosaic mosaic virus Jones virus

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