TRI-OLOGY, Vol. 38, No. 6
Nancy C. Coile, Ph. D., Managing Editor
NOVEMBER-DECEMBER 1999
Wayne N. Dixon, Ph. D., Editor
| Botany Section | Entomology Section | Nematology Section | Plant Pathology Section |
BOTANY SECTION
Compiled by Carlos R. Artaud
Added to the herbarium collection during this period were 33 mounted specimens (total of 7,691). Terrence D. Williams (R2A2) submitted two specimens; Stephen A. Bohnstedt (R2A2), Dennis C. Clinton & Rita J. Carpenter (R3A2), David M. Mooney (R2A3), Flewellyn W. Podris (R1A1), and Barbara J. Wilder (R2A1) each submitted one specimen which were added to the herbarium. For this period, 64 specimens were submitted to Botany for identification, and 504 were received from other Sections for identification and/or name verification (for a total of 568). Some of the samples are described below:
Acacia aciphylla Benth., (1,200 tropical and warm climates species, 900 of these are Australian "wattles"), Leguminosae, needle-leaved wattle: A dense shrub to 1.5 m tall, and up to 2 m wide; bark gray; branches terete, glabrous. Phyllodes 0.6-1.7 cm long, 0.1 cm wide, needle-like, ascending, pungent, light green to gray green. Flower heads oblong, to 0.7 cm long, 1-4 per axil, yellow; peduncles very short. Legume 6 cm long, 0.2 cm wide, linear, more or less leathery, slightly constricted between seeds. Not well known in cultivation. Requires well-drained soils, and tolerates partial to full sun. Withstands dry periods and light frosts. Native to western Australia. (Orange County; B1999-467; Tom L. Phillips; 26 October 1999). (Elliott and Jones 1982).
Aster carolinianus Walt., (ca. 250 species in America; 32 species in Eurasia; 33 species in the Himalayas, and 17 species in Africa), Compositae, climbing aster: Climbing or decumbent perennial, diffusely branching and vinelike, to 4 m long. Leaves 5-11 cm long, margins entire, acute or tapered at apex, sagittate or clasping at base. Heads one to many on leafy branches; outer phyllaries spatulate, inner ones linear, all with dark green tips, recurved or spreading; ray flowers pale-purplish or pink, 1.5-2 cm long. Achenes smooth. Swamps and hammocks, on the coastal plain from Florida to North Carolina. Planted as a nectar plant for butterfly gardens. (St. Johns County; B1999-464; Terrence D. Williams; 4 November 1999). (Long and Lakela 1971; Wunderlin 1998).
Bucida spinosa Jenn., (8 species, south Florida, West Indies, and Central America), Combretaceae, spiny black-olive: Shrub or flat-topped tree, 4-8 m tall; branches spreading; twigs divaricate; spines slender, 3-7 mm long, mostly in 3's at end of twigs. Leaves fascicled, subsessile, oblanceolate to spatulate, 1-2.5 cm long, 4-6 mm wide, firm, margins entire, obtuse or retuse at apex, narrowed at base. Flowers greenish, in short axillary subcapitate spikes, peduncles short; calyx campanulate, to 3 mm long, subtruncate, villous within; stamens 8 or 9, to 3 mm long. Fruit a drupe, ovoid, 3-4 mm long, calyx early deciduous. Used as an indoor ornamental in large planters, and also a popular bonsai subject. Native to Cuba, the Bahamas, and rare in Miami-Dade County, Florida. (Miami-Dade County; B1999-522; Duraid I. Hanna; 22 December 1999). (Correll and Correll 1982; Leon and Alain 1953; Wunderlin 1998).
Ficus lyrata Warb., (Tropical and warm climates; ca. 500 species from Indomalaysia to Australia, 105 species from Africa, and ca. 150 species from America), Moraceae, fiddle-leaf fig: Tree to 12 m tall, sometimes starting as an epiphyte and strangling the host; buttresses and aerial roots lacking. Twigs to 1.1 cm thick; stipules brown, boat-shaped, persistent for several nodes, about 5 cm long. Leaves glossy green, margins entire, initially finely hairy, later glabrous, to 45 cm long, 30.5 cm wide, coriaceous and brittle, broadly obovate to lyrate-pandurate with the upper part distinctly wider than the lower, apex wide, broadly rounded, tip indented, base cordate (=fiddle-shaped); venation pinnate but with 1 of the 3 basal veins fairly prominent, extending into the lower one-fifth of the blade, and only 3-5 ascending, branching lateral veins on each side; petiole stout, to 7.5 cm long. Figs axillary near twig ends, solitary or in pairs, globose, sometimes oblique, sessile, finely hairy, green with white flecks, 2.5-3 cm or more in diameter. Juvenile stage popular indoors. Used as a yard tree, or for street planting in warm climates. Native to tropical west and central Africa. (Lee County: B1999-480; Sheila J. Foe; 11 December 1999). (Bailey 1976; Huxley 1992).
Manilkara zapota (L.) Van Royen, (65 tropical species: Asia to Pacific with 12, Africa and Madagascar with 20, and America with 30), Sapotaceae, sapodilla, nispero, chicle: Tree to 30 m or more tall. Leaves 6.6-14.4 cm long, 2.1-5.2 cm wide, on petioles 1-3 cm long, clustered at twig apices, glabrous, elliptic to oblong-elliptic, ovate-elliptic or elliptic lanceolate, stiff, subglabrous, vein pairs 15-23. Flowers solitary; sepals 7-9.5 mm long, ovate to lanceolate; corolla 8-11 mm long, lobes 6(-7); stamens and staminodes 6, the latter 2-5 mm long, oblong, elliptic or lanceolate, somewhat petaloid. Fruit 3.5-8 cm long, 6 cm broad, broadly ovoid or ellipsoid, rough and brown, pulp sweet, juicy, translucent, somewhat granular, pale yellow-brown; seeds 2-10, glossy black. Widely cultivated in the tropics for its sweet fruit and as street trees withstanding hurricanes very well. Trees, when tapped, yield a milky latex which forms chicle, the chewing gum of the Aztecs. Native from Mexico to Costa Rica. (Lee County; B1999-507; Sheila J. Foe; 13 December 1999). (Bailey 1976; Huxley 1992).
Ruscus hypoglossum L., (6 species: from Madeira, the Azores, northern Africa, western Europe to Iran), Liliaceae, butcher's broom, mouse-thorn: Evergreen perennial herb, stems to 40 cm long, usually shorter, simple, arching to procumbent. Cladophylls 3-10 cm long, 1-3.3 cm wide, to 22 per stem, obovate-rhombic to broadly ovate, mucronate to pungent. True leaves minute, reduced to membranous scales. flowers unisexual, borne successively on the midrib of the cladophyll and arising from the scale- or bract-like true leaf found on the cladophyll surface; pedicel 5-8 mm long, perianth segments spreading, the outer 3-4 mm long; staminal tube violet. Easily recognized by its low-growing habit and broad cladophylls. Frequently used as foliage by florists, since it does not wilt easily. Native from Italy, and Czechoslovakia to northern Turkey. (Manatee County: B1999-481; Hicham Ouhirra; 19 November 1999). (Bailey 1976; Huxley 1992).
Senna surattensis (Burm. f.) Irwin & Barneby, (ca. 350 species, tropical and warm temperate), Leguminosae, glossy shower: Tall shrub or small tree. Leaves with 6-10 pairs of leaflets, each 3 cm long, obovate. Flowers large, yellow, in umbel-like racemes. Legume compressed. Rare in Monroe and Miami-Dade counties as an escapee from cultivation. Native to tropical Asia, Australia and Polynesia. (Lee County; B1999-490; Stephen H. Brown, University of Florida's Lee County Extension Office; 30 November 1999). (Huxley 1992; Wunderlin 1998).
Tabebuia impetiginosa (Mart. ex DC.) Standl., (100 species from tropical America), Bignoniaceae, magenta trumpet tree: Tree to 20 m tall; bark gray, smooth. Leaves digitate, 5-7-foliate; leaflets 2.2-19 cm long, 1.5-8.3 cm wide, ovate to oblong-ovate, apex acuminate, base cuneate to subcordate, margin entire or finely dentate, papery, scaly, pubescent at least on venation beneath. Inflorescence compact, pubescent; calyx scaly-lepidote; corolla 4-7.5 cm long, 1.2-5 cm broad, rose to deep purple or magenta, throat yellow becoming purple, tube 2.5-5 cm long, lobes 0.9-2 cm long, puberulent outside. Fruit 12-56 cm long, 1.3-2.5 cm in wide, glabrous, terete. Used for street planting in warm climates. Native from northern Mexico to Argentina. (Lee County; B1999-503; Stephen H. Brown, University of Florida's Lee County Extension Office; 1 December 1999). (Bailey 1976; Huxley 1992).
GLOSSARY: cladophyll: a stem having the appearance and function of a leaf (see: phyllode); divaricate: widely spreading at an obtuse angle; lepidote: covered with small scurfy scales; phyllaries: the involucral bracts which are at the base of the flower head in Compositae; phyllode: an expanded petiole having the appearance and function of a leaf (see: cladophyll).
REFERENCES
- L. H. Bailey Hortorium Staff. 1976. Hortus third, a concise dictionary of plants cultivated in the United States and Canada. Macmillan Publishing Company, New York. 1,290 p.
- Correll, D. S. and H. B. Correll. 1982. Flora of the Bahama Archipelago. J. Cramer, Hirschberg, Germany. 1,692 p.
- Elliott, W. R. and D. L. Jones. 1982. Encyclopedia of Australian plants. Lothian Publishing Company PTY. LTD., Melbourne, Sydney, Auckland. 2: 12.
- Gibson, D.N. 1974. Flora of Guatemala. Solanaceae. Fieldiana. 24 (V): 260-261.
- Huxley, A.J. (ed.) 1992. New Royal Horticultural Society dictionary of gardening. 4 vols. Macmillan Press, London. 3,240 p.
- Leon H. and H. Alain. 1953. Flora de Cuba. Imp. P. Fernandez y Cia., La Habana. 13 (III): 403-404.
- Long, R.W. and O. Lakela. 1971. A flora of tropical Florida. University of Miami Press, Coral Gables. 962 p.
- Wunderlin, R.P. 1998. Guide to the vascular plants of Florida. University Press of Florida, Gainesville. 806 p.
ENTOMOLOGY SECTION
Compiled by Susan E. Halbert, Ph.D.
For the month of November, there were124 samples consisting of 3217+ specimens. In December, there were 205 samples consisting of 4879+ specimens. Some of the samples processed are listed below:
ORNAMENTALS, WOODY PLANTS AND PALMS: Abies fraseri (Fraser fir)-- Cinara sp., an aphid: Infestations were found on cut Christmas trees purchased in discount stores in Davie (Broward County; E99-3194; Rita J. Carpenter; 3 December 1999) and Pompano Beach (Broward County; E99-3204; James 'Keith' Harris; 6 December 1999). Several incidences of aphid-infested Christmas trees have come to our attention this holiday season. All the numerous species of Cinara live on coniferous plants. These large rotund-bodied aphids superficially resemble engorged ticks. However, Cinara spp. feed only on coniferous plants and, thus, cannot transmit any human or animal pathogens. There is no need to treat the trees with insecticide. Please see http://www.freshfromflorida.com/pi/enpp/ento/christmas-tree-aphids.html for more information (Dr. Susan E. Halbert).
Bucida spinosa (spiny black olive)-- Philephedra tuberculosa Nakahara & Gill, a soft scale: A severe infestation involved 425 plants at a nursery in Parrish (Manatee County; E99-2998; Mark L. Runnals; 5 November 1999).
Cycas revoluta (king sago)-- Aulacaspis yasumatsui Takagi, cycad aulacaspis scale: A severe infestation involved 38 plants at a discount store in Naples (Collier County; E99-2982; Scott D. Krueger; 2 November 1999).
Ilex vomitoria (yaupon holly)-- Phytomyza vomitoriae Kulp, leaf miner: A moderate infestation involved 100 plants at a nursery in Sebring (Highlands County; E99-3244; James 'Jim' E. Bennett; 9 December 1999).
Murraya paniculata (orange-jessamine; orange-jasmine)-- Aleuroclava jasmini (Takahashi), jasmine whitefly: Moderate infestations were found at nurseries in Ft. Lauderdale (Broward County; E99-2606; Maria S. Quintanilla; 24 September 1999) and Orlando (Orange County; E99-2799; Terrence D. Williams; 12 October 1999). Both are NEW DPI COUNTY RECORDS.
-- Diaphorina citri Kuwayama, Asian citrus psyllid: A slight infestation was found at a discount store in Pinellas Park (Pinellas County; David M. Mooney; E99-3109; 22 November 1999). NEW DPI COUNTY RECORD.
-- Diaphorina citri Kuwayama, Asian citrus psyllid: A severe infestation was found at a residence in Buckhead Ridge (Glades County; Dana L. White and Matthew 'Matt' W. Brodie; E99-3375; 20 December 1999). NEW DPI COUNTY RECORD.
Myrica cerifera (wax myrtle, a native species)-- Calepitrimerus ceriferaphagus Cromroy, eriophyid mite: A severe infestation involved 1000 plants at a residence in Tavares (Lake County; E99-3229; Harry L. Morrison; 6 December 1999). This mite is reported to cause leaf distortion, reduction in size, and a yellow-green mosaic pattern (Dr. W.C. 'Cal' Welbourn).
Nolina recurvata (ponytail)-- Pseudococcus odermatti Miller & Williams, a mealybug: A severe infestation was found at a residence in Bradenton (Manatee County; E99-2849; Mark L. Runnals; 23 October 1999). NEW DPI COUNTY RECORD.
Rhaphiolepis umbellata (Yedda hawthorn)-- Ceroplastes floridensis Comstock, Florida wax scale: A severe infestation was found at a nursery in Winter Haven (Polk County; E99-2855; James E. 'Pete' Lindsay and W. Jack Shirley; 19 October 1999).
Schefflera arboricola (dwarf schefflera)-- Dialeurodes sp., a whitefly: A severe infestation by this undescribed species was found on 300 plants at a nursery in Plymouth (Orange County; E99-2872; Leslie J. Wilber; 21 October 1999).
ORNAMENTALS, FLOWERING PLANTS: Hemerocallis sp. (daylily)-- Myzus hemerocallis Takahashi, daylily aphid: A severe infestation involved 50 plants at a nursery in DeLand (Volusia County; E99-3122; Stacey S. Simmons; 24 November 1999). Daylily aphid seems to be a winter pest (Dr. Susan E. Halbert).
Ludwigia peruviana (Peruvian primrose-willow)-- Desmia ploralis (Guen Te), a pyralid moth: A severe infestation involved 70% of 300 plants at a nursery in Wesley Chapel (Pasco County; E99-2568; Howard L. Wallace; 22 September 1999). NEW DPI HOST RECORD.
FOREST AND SHADE TREES: Juniperus virginiana (eastern red cedar, a native species )-- Sanbornia juniperi Pergande, a juniper aphid: A slight to moderate infestation involved 20 of 500 plants at a nursery in Brandon (Hillsborough County; E99-3094 and E99-3292; Stacy A. Tyrala;18 November and 9 December 1999).
Schaefferia frutescens (Florida-boxwood, yellow wood)-- Toxoptera citricida (Kirkaldy), brown citrus aphid: A slight infestation was found at a state park in Key Largo (Monroe County; E99-3172; Dr. Susan E. Halbert, Dr. Paul E. Skelley, and James 'Jim' G. Duquesnel, Florida Park Service Biologist, Florida Department of Environmental Protection; 1 December 1999). NEW DPI HOST RECORD.
FOOD AND CROP PLANTS: Eriobotrya japonica (loquat, Japanese plum)-- Toxoptera citricida (Kirkaldy), brown citrus aphid: A slight infestation was found at a nursery in Pierson (Volusia County; E99-2997; Stacey S. Simmons; 2 November 1999). NEW DPI HOST RECORD.
CITRUS: Citrus aurantifolia (key lime)-- Diaphorina citri (Kuwayama), Asian citrus psyllid: A severe infestation was found in a remnant grove in a state park in Key Largo (Monroe County; E99-3168; Dr. Susan E. Halbert and Dr. Paul E. Skelley; 1 December 1999). The population was heavy even though there was no new growth on the limes. Zanthoxylum fagara (wild lime) plants growing near the infested limes were negative for D. citri, suggesting that wild lime may not be a "good" host of Asian citrus psyllids (Dr. Susan E. Halbert and Dr. Paul E. Skelley).
Citrus x paradisi (grapefruit)-- Paracoccus marginatus Williams & Granara de Willink, papaya mealybug: A slight infestation was found in a discount store in Brandon (Hillsborough County; E99-2736; Stacy A. Tyrala; 7 October 1999).
Citrus reticulata (tangerine)-- Panocychus citri McGregor, citrus red mite: An infestation involved 29 of 40 plants at a discount store in Tampa (Hillsborough County; E99-2730; James R. Martin; 8 October 1999).
NATIVE AND NATURALIZED PLANTS: Conocarpus erectus var. sericeus (silver buttonwood)-- Cryptocephalus ?tristiculus Weise, a leaf beetle: A severe infestation was found at a residence in Ft. Lauderdale (Broward County; E99-3106, 3181; William A. 'Bill' Thiel, Jr.; 19 November, 1 December 1999). NEW USA NATIONAL RECORD.
Cyperus virens (green flatsedge)-- Carolinaia caricis Wilson, a native sedge aphid, and Hysteroneura setariae (Thomas), rusty plum aphid: A slight infestation was found on plants by a roadside in Ft. Pierce (St. Lucie County; E99-3255; Kenneth L. Hibbard; 8 December 1999). Both are NEW DPI HOST RECORDS.
Euthamia caroliniana (slender goldenrod)-- Asteromyia euthamiae Gagne ?, a cecidomyiid fly: A severe infestation was found at a nursery in Jacksonville (Duval County; E98-4178; Flewellyn W. Podris; 23 November 1998). Asteromyia euthamiae is known from several other Euthamia species (Dr. Gary J. Steck). NEW HOST RECORD.
Helianthus debilis (beach sunflower, dune sunflower)-- Amauromyza maculosa (Malloch), a leaf miner: A slight infestation was found at a residence in Ft. Pierce (St. Lucie County; E99-3183; Kenneth L. Hibbard; 10 November 1999). NEW DPI COUNTY RECORD.
FEDERAL AND STATE PLANT PROTECTION AND QUARANTINE PROGRAMS: Helix aspersa Müller, brown garden snail: A moderate to severe infestation was found at Plymouth in a shipment of Crassula ovata (jade plant) from California (Orange County; E99-3308; Leslie J. Wilber and Tom L. Phillips; 17 December 1999).
Phloeosinus sp., a scolytid beetle: Beetles were found in artificial Christmas trees made in China for sale at a craft store in Valrico (Hillsborough County; E99-2974; Stacy A. Tyrala; 1 November 1999). Holes were found in approximately 25-30% of trunks.
Ceratitis capitata (Wiedemann), Mediterranean fruit fly: One undyed and gravid female was captured in a multi-lure trap in Sarasota (Sarasota County; E99-3108; Bonnie L. Swanson, fruit fly trapper, and Gail L. Nebel, Fruit Fly Identification Laboratory;18 November 1999). The medfly had mated but apparently only with sterile male(s) from the Preventative Release Program. DNA testing confirmed that this fly could not have been a wild fly derived from the populations found in Florida in 1997-1998 because its DNA is consistent with that of either laboratory-reared or wild populations from Central America, which, at this time, cannot be differentiated. As a precaution, trap densities throughout the area were increased and surveys for larva-infested fruit were undertaken. No additional suspect flies or larvae were detected (Dr. Gary J. Steck).
INSECT DETECTION: Coccinella californica Mannerheim, a ladybird beetle: A specimen was intercepted in Orlando (Orange County; E99-2968; Terrence D. Williams; 1 November 1999) in a box of cut sunflowers from Lompoc California. The beetle is native to the west coast of the U.S. and has been intercepted in other eastern states (Dr. Paul E. Skelley and Dr. Michael C. Thomas).
? Freya sp., a jumping spider: A specimen was found in a field of Ipomoea aquatica (Chinese water-spinach, Prohibited Plant) in Parrish (Manatee County; E99-2811; K. Lea Etchells; 7 October 1999). NEW USA NATIONAL RECORD. The group of jumping spider to which this specimen belongs is known from the Neotropics (Dr. G. B. Edwards).
Holocnemus pluchei (Scopoli), a longlegged spider: A specimen was found in Parrish (Manatee County; E99-3060; Mark L. Runnals; 16 November 1999) in a shipment of large Phoenix palms. NEW DPI STATE RECORD. This European species is established in California (Dr. G.B. Edwards).
Takecallis arundicolens (Clarke), a bamboo aphid: A specimen was collected in a suction trap in Quincy (Gadsden County; E99-3207-220; Dr. Richard K. Sprenkel, University of Florida's North Florida Research and Extension Center, and Dr. Susan E. Halbert; 29 November 1999). NEW DPI COUNTY RECORD.
Trachelas pacificus Chamberlin & Ivie, a corinnid spider: An adult male specimen was found in a food market in Clewiston (Hendry County; E99-2886; Randall N. Mescher; 21 October 1999) on grapes imported from Chile. The species is from California, which implies that the grapes were shipped to California prior to being shipped to Florida, since this species is not known from Chile (Dr. G. B. Edwards).
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NEMATOLOGY SECTION
Compiled by Paul S. Lehman, Ph.D.
A total of 3,124 samples were processed in November and December of 1999. Details are shown below:
Certification and Regulatory Samples:
Multistate Certification for National and International Export 1,840
California Certification 865
Burrowing Nematode (Citrus Regulatory Survey) 134
Premovement (Citrus Nursery Certification) 46
Site or Pit Approval (Citrus Nursery Certification) 44
Other Samples:
Plant Problems 44
Out of State Survey, via Florida
Identifications 4
Intrastate Survey, Random 147
NEMATODES NEW TO FLORIDA (June - December 1999): The following list summarizes the nematodes which are reported as new to Florida from July 1 to December 31, 1999. All the plants listed are those that were sampled, but were not verified as hosts. This list is based on DPI records, and the nomenclature principally follows Ebsary (1991) and Hunt (1993) .
Carex alata (broadwing sedge)-Helicotylenchus pisi Swarup and Sethi, 1968, a spiral nematode: (Alachua County; N99-00555; Dr. Robert P. Esser, Christine A. Zamora and Gay M.Fortier; 20 April 1999).
Quercus nigra (water oak)-- Ogma dryum, (Minagawa, 1979) Raski & Luc, 1987, a spine nematode: Alachua County; N99-00645; Dr. Robert P. Esser; 4 May 1999).
Serenoa repens (saw palmetto)-- Hemicycliophora koreana Choi & Geraert, 1971, a sheath nematode: (Alachua County; N99-00592; Dr. Robert P. Esser, Christine A. Zamora and Dr. Susan E. Halbert; 27 April 1999).
COLLECTORS SUBMITTING FIVE OR MORE SAMPLES THAT WERE PROCESSED FOR NEMATOLOGICAL ANALYSIS DURING NOVEMBER AND DECEMBER 1999:
Branch, Kenneth D. 32
Clifton, L. Wayne. 6
Emery, Tyson R. 36
Fuller, Samuel A. 339
Harris, Jessie M. 67
Inguanzo, Yolanda I. 11
LeBoutillier, Karen W. 373
Pate, JoAnn 85
Robinson, William L. 'Robbie' 158
Salisbury, Thomas L. 235
Smith, W. Wayne 158
Wigelsworth, Jimmie R. 50
- Ebsary, B.A. 1991. Catalog of the Order Tylenchidae (Nematoda). Publication 1869/B. Research Program Branch, Agriculture Canada, Ottawa. 196 p.
- Hunt, D. J. 1993. Aphelenchida, Longidoridae and Trichodoridae, their systematics and bionomics. C A B International, University Press, Cambridge, United Kingdom. 352 p.
PLANT PATHOLOGY
Compiled by Robert M. Leahy
For this period, the Plant Pathology Section received and processed 12,239 specimens. These included 457 pathology, 13 miscellaneous, 27 soil, 11,666 suspected canker sample in Dade County, 39 suspected canker samples in Manatee County, and 28 suspect canker samples from Collier County. Some of the samples are listed below:
ORNAMENTALS, WOODY PLANTS AND PALMS: Serenoa repens (saw palmetto)-- Cylindrocladium pteridis F. A. Wolf, leaf spot: Collected at a nursery in Tavares (Lake County; P99-2680; Stephen P. Beidler; 17 November 1999). NEW HOST RECORD.
Viburnum macrocephalum (Chinese snowball)-- Kutilakesa pironii Alifieri, stem gall: Collected at a nursery in Jasper (Hamilton County; P99-2964; Osmond O. Baron; 20 December 1999). NEW HOST RECORD.
ORNAMENTALS, FLOWERING PLANTS: Brugmansia x candida (an angels' trumpet)-- Alternaria crassa (Sacc.) Rands, a leaf spot: Collected at a nursery in Okeechobee (Okeechobee County; P99-2525; James 'Jim' E. Bennett; 26 October 1999). NEW HOST RECORD.
FOOD OR CROP PLANTS: Fortunella margarita 'Nagami' (nagami kumquat)-- Ceratocystis adiposa (E. J. Butler) C. Moreau, a root rot: Collected at a nursery in Lithia (Hillsborough County; P99-2841; Stacy A. Tyrala and James R. Martin; 8 December 1999). NEW HOST RECORD.
OTHER DETECTIONS OF SPECIAL INTEREST: Dracaena surculosa (gold dust dracaena)-- Dendryphiella sp., a secondary pathogen: Collected at a nursery in Pierson (Volusia County; P00-2618; Stacey S. Simmons; 5 November 1999). NEW HOST RECORD.
