Mark A. Garland, Managing Editor
NOVEMBER-DECEMBER 2002
Wayne N. Dixon, Ph. D., Editor
| Botany Section | Entomology Section | Nematology Section | Plant Pathology Section |
BOTANY SECTION
Compiled by Carlos R. Artaud 1
For this period, 76 specimens were submitted for identification, and 603 were received from other Sections for identification and/or name verification (total 679). Some of the samples are described below:
Euphorbia leucocephala Lotsy (genus of about 2,000 species, cosmopolitan), Euphorbiaceae, pascuita: Slender shrub to small tree, 1.5-3.5 m tall. Lower leaves lanceolate-ovate, in whorls of 3, to 8 cm long and 3.5 cm broad, apex obtuse, apiculate, base rounded; upper leaves oblanceolate, to 1.5 cm long, pink to white. Cyathia 2 mm in diameter, fragrant, in terminal umbels; glands 2-5 with white petaloid appendages, involucral bracts spatulate, white. Native from southern Mexico to El Salvador. Extensively cultivated in Jamaica. (Broward County; B2002-664; Amy C. Simington; 3 December 2002). (Bailey 1976; Huxley 1992).
Gloxinia perennis (L.) Druce (genus of 15 species, tropical America), Gesneriaceae, Canterbury bells: Perennial herb, dormant in winter, with creeping, scaly rhizomes. Stems glabrous. Leaves opposite, connected by transverse ridges, to 20 cm long, and 15 cm broad, ovate-cordate, apex acute, green and hispid above, pale red and glabrous beneath; margins serrate-crenate. Lower flowers solitary in leaf axils, upper flowers in many-flowered racemes; pedicels glabrous, to 2.5 cm long; calyx tube to 1 cm long, 10-ribbed, glabrous, sepals to 1.5 cm long; corolla to 4 cm long, pubescent, pale purple or lavender with dark violet spot at the strongly pouched base, lobes obtuse; style to 1.5 cm long; filaments densely glandular-hairy. Native from Colombia to Peru. (Lake County; B2002-628; Thomas L. Phillips, 7 November 2002). (Bailey 1976; Huxley 1992).
Kalanchoe gastonis-bonnieri Hamet & Perrier (genus of 125 species, Old World tropics, especially Africa, and Madagascar; 1 species, South America), Crassulaceae, Palm Beach bells: Perennial herb to 1 m tall. Leaves lanceolate to spatulate, glabrous, white-mealy, base attenuate to a broad petiole, the lower nearly in a rosette, 15-30 cm long; margins sinuate to coarsely crenate. Inflorescence corymbose, 2-40-flowered, flowers pendent; calyx nearly urceolate, strongly inflated, to 2.5 cm long, lobes shorter than tube; corolla yellowish or reddish, glandular-pubescent at least towards the apex, to 3.8 cm long, lobes acute, shorter than tube; stamens exserted. Cultivated plants, here described, differ from the type in their larger and more variable leaves, larger calyx, and less pubescent corolla. Native of Madagascar. (Miami-Dade County; B2002-644; Edward T. Putland; 22 November 2002). (Bailey 1976; Huxley 1992).
Leonotis leonurus (L.) R. Br. (genus of 15 species, in tropical Africa with 1 species extending to America and Asia), Labiatae/Lamiaceae, lion's-ear: Aromatic shrub to 2 m tall; stems tetragonal. Leaves opposite, lanceolate to oblanceolate, to 11 cm long; margins entire or crenate. Inflorescence in dense axillary whorls; calyx tubular-campanulate, 2 cm long, 10-veined, 8-10-toothed, lobes acuminate; corolla to 6 cm long, orange-red to scarlet, ciliate within, bilabiate, upper lip much longer than lower, fringed with long orange hairs; fertile stamens 4, hooded by upper lip of corolla, lower pair shorter than upper. Fruit 4 nutlets. Grown for its vividly colored flowers produced in autumn and early winter. Native of South Africa. (Lake County; B2002-644; Thomas L. Phillips; 18 November 2002). (Huxley 1992).
Malpighia coccigera L. (genus of about 40 species, tropical America, especially Caribbean), Malpighiaceae, miniature holly, dwarf holly, Singapore holly: Shrub to 1 m tall, branches elongate, often prostrate. Leaves coriaceous, glabrous, 0.6-2.5 cm long and 0.4-2.4 cm broad, orbicular or broadly elliptic to obovate, base rounded, apex rounded; margins deeply sinuate, with lobes aristate-dentate. Flowers axillary, solitary or in pairs; calyx 5-lobed, sepals with glands on exterior; corolla pink or lilac, petals unequal, unguiculate; stamens 10, filaments glabrous, free; ovary glabrous, 3-lobed; styles 3. Fruit subglobose, red, 5-15 mm in diameter. Valued for its compact habit and holly-like leaves. Native to the West Indies. (Yamhill County, OR; B2002-672; Sandy Mannella, homeowner; 10 December 2002). (Huxley 1992).
Porana paniculata Roxb. (genus of 20 species, tropical Asia to Australia), Convolvulaceae, bridal-bouquet, snow creeper, snow-in-the-jungle, white corallita: Liane to 9 m long. Leaves alternate, cordate, 15 cm long and 4 cm broad, acuminate, glabrous above, white-pubescent beneath; margins entire. Flowers in terminal, large, many-flowered, pendulous panicles; calyx 5-parted, falling with the fruit, sepals prominently veined, 3 sepals enlarged; corolla to 8 mm long, white, tubular-campanulate, obscurely lobed. Cultivated for its dense masses of white flowers. Native of India and Burma/Myanmar. (Highlands County; B2002-678; James E. Bennett; 2 December 2002). (Bailey 1976; Huxley 1992).
GLOSSARY: acuminate: tapering gradually towards the apex; apiculate: having a small acute projection; aristate: having an arista, a bristle-like appendage; cyathium (cyathia pl.): an inflorescence reduced to look like a single flower, peculiar to the genus Euphorbia and its close relatives; hispid: having stiff bristly hairs; tetragonal: four-angled; urceolate: like a pitcher or contracted at the mouth; unguiculate: clawed, a petal which is contracted at the base into a stalk-like structure.
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.
- Huxley, A. J. (ed.) 1992. New Royal Horticultural Society dictionary of gardening. 4 vols. Macmillan Press, London. 3,240 p.
- Mabberley, D. J. 1997. The plant-book, 2nd ed. Cambridge University Press. 858 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 were 449 samples, consisting of ca. 30,260 specimens. In December, there were 400 samples, consisting of ca. 26,724 specimens. Some of the samples are listed below:
ORNAMENTALS, WOODY PLANTS AND PALMS: Dypsis lutescens (areca palm, yellow butterfly palm, golden cane palm, Madagascar palm)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found at a nursery in Miami (Miami-Dade County; E2002-5620; Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD.
Phoenix canariensis (Canary Island date palm, pineapple palm)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found at a nursery in Miami (Miami-Dade County; E2002-5621; Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD.
Phoenix roebelenii (pigmy date palm)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation involving 1,860 plants was found at a nursery in Miami (Miami-Dade County; E2002-5844; Lynda F. Davis; 2 December 2002). NEW DPI HOST RECORD.
Ceroplastes dugesii Lichtenstein, duges wax scale: A slight to moderate infestation was found at a nursery in Florida City (Miami-Dade County; E2002-5209; Lynn D. Howerton; 24 October 2002). NEW DPI HOST RECORD, NEW DPI COUNTY RECORD.
Roystonea regia (Cuban royal palm, Florida royal palm)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found at a nursery in Miami (Miami-Dade County; E2002-5628 Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD.
Syagrus romanzoffiana (queen palm)-- Aleurocerus palmae Russell, a whitefly: A slight infesation on about 5,000 plants was found at a nursery in Clewiston (Hendry County; E2002-5616; Lori A. Richards; 18 November 2002). NEW DPI COUNTY RECORD, NEW DPI HOST RECORD.
Vinsonia stellifera (Westwood), stellate scale: A slight infestation on 300 plants was found at a nursery in Miami (Miami-Dade County; E2002-5942; Lynda F. Davis; 9 December 2002). NEW DPI HOST RECORD.
Veitchia merrillii (Manila palm, Christmas palm, Adonidia palm, miniature royal palm)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found at a nursery in Miami (Miami-Dade County; E2002-5622; Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD.
Washingtonia robusta (Washingtonia palm, skyduster)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found at a nursery in Miami (Miami-Dade County; E2002-5625; Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD.
ORNAMENTALS, FOLIAGE PLANTS: Osmunda regalis (royal fern, flowering fern, snake fern, king's fern)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found on one of ten plants in an empty lot in Miami (Miami-Dade County; E2002-5661; Edward T. Putland; 18 November 2002). NEW DPI HOST RECORD.
ORNAMENTALS, FLOWERING PLANTS: Abutilon x hybridum (flowering-maple)-- Paracoccus marginatus Williams & Granara de Willink, papaya mealybug: A moderate infestation involving 40% of one plant was found at a residence in Apollo Beach (Hillsborough County; E2002-5676; Howard L. Wallace; 21 November 2002). NEW DPI HOST RECORD.Cestrum diurnum (day-blooming jasmine)-- Paratachardina lobata (Chamberlin), lobate lac scale: A severe infestation on all of three plants was found at a discount store in Miami (Miami-Dade County; E2002-5742; Edward T. Putland; 22 November 2002). NEW DPI HOST RECORD.
Clerodendrum sp. (glory bower)-- Paracoccus marginatus Williams & Granara de Willink, papaya mealybug: A severe infestation was found on a plant at a residence in Miami (Miami-Dade County; E2002-5513; Lynda F. Davis; 8 November 2002). NEW DPI HOST RECORD.
FOOD AND CROP PLANTS: Averrhoa carambola (carambola, starfruit)-- Xenogryllus sp., a cricket: A specimen was found on fruit at a residence in Homestead (Miami-Dade County; E2002-5996; Steve Biondo, homeowner; 10 December 2002). This is an exotic cricket that has been known from South Florida only since 1993. It has been a pest on lychees (Dr. Michael C. Thomas).Manilkara zapota (sapodilla)-- Metaleurodicus cardini (Back), cardin's whitefly: A severe infestation was found at a residence in Miami (Miami-Dade County; E2002-5505; Haydee L. Jova; 7 November 2002). NEW DPI HOST RECORD.
Phaseolus vulgaris (snapbean, stringbean, pole bean, foot-long bean)-- Aleurodicus dugesii Cockerell, giant whitefly: A moderate infestation was found on a farm in Gainesville (Alachua County; E2002-5579; Ulla K. Benny, U.F. Plant Pathology; 10 November 2002). NEW DPI HOST RECORD.
CITRUS AND CITRUS RELATIVES: Citrus sp. (citrus)-- Diaphorina citri Kuwayama, Asian citrus psyllid: A slight infestation was found on three plants at a retail outlet in Chiefland (Levy County; E2002-5567; W. Wayne Bailey; 15 November 2002). NEW DPI COUNTY RECORD.Zanthoxylum fagara (wild lime)-- Diaphorina citri Kuwayama, Asian citrus psyllid: Adults and eggs of Asian citrus psyllid were found on the new flush of the wild lime plant at the DPI Citrus Arboretum in Winter Haven (Polk County; E2002-6123; Julieta Brambila and Dr. Susan E. Halbert; 23 December 2002). This is the first report of possible reproduction of Asian citrus psyllid on Zanthoxylum, which was thought to be a non-host. NEW DPI HOST RECORD (Dr. Susan E. Halbert).
WEEDS AND GRASSES: Baccharis sp. (saltbush)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation on 20 plants was found at the Division of Plant Industry office in Miami (Miami-Dade County; E2002-5946; Edward T. Putland; 9 December 2002). NEW DPI HOST RECORD.Casuarina equisetifolia (Australian-pine, beefwood, she-oak, horsetail tree, beach sheoak)-- Paratachardina lobata (Chamberlin), lobate lac scale: A moderate infestation on 30 plants was found in an empty lot in Hialeah (Miami-Dade County; E2002-5503; Edward T. Putland; 7 November 2002). NEW DPI HOST RECORD.
Euphorbia leucocephala (pascuita)-- Paratachardina lobata (Chamberlin), lobate lac scale: A slight infestation was found on a plant at a residence in Miami (Miami-Dade County; E2002-5731; Edward T. Putland; 22 November 2002). NEW DPI HOST RECORD.
Gramineae (bamboo)-- Trionymus lumpurensis Takahashi, a bamboo mealybug: A slight infestation was found at a nursery in Oviedo (Seminole County; E2002-5595; Amanda D. Melco and Luis A. Arocho; 13 November 2002). NEW DPI COUNTY RECORD.
Melaleuca quinquenervia (melaleuca, cajeput, punktree, paperbark, white bottlebrush tree)-- Vinsonia stellifera (Westwood), stellate scale: A moderate infestation on over 100 plants was found in an empty lot in Hialeah (Miami-Dade County; E2002-5501; Edward T. Putland; 6 November 2002). NEW DPI HOST RECORD.
Oplismenus hirtellus (woodgrass, basketgrass)-- Pseudoregma panicola (Takahashi), an aphid: A moderate infestation was found on plants in Titusville (Brevard County; E2002-5687; Gregory A. Brown; 20 November 2002). This is an east Asian exotic that is rarely collected. Often the colony includes fortified soldier morphs (Dr. Susan E. Halbert).
Osmunda regalis (royal fern, flowering fern, snake fern, king's fern)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found on one of ten plants in a vacant lot in Miami (Miami-Dade County; E2002-5661; Edward T. Putland; 18 November 2002). NEW DPI HOST RECORD.
Paspalum notatum (Bahia grass)-- Duplachionaspis divergens Green, an armor scale: A slight infestation was found at a residence in Arcadia (De Soto County; E2002-6020; James F. Selph, Jr., University of Florida Agricultural Extension, De Soto County; 19 December 2002). NEW DPI COUNTY RECORD.
Sagittaria lancifolia (bulltongue arrowhead)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation on scattered plants was found in a wooded lot in Hialeah (Miami-Dade County; E2002-5836; Lynda F. Davis; 2 October 2002). NEW DPI HOST RECORD.
Sagittaria sp. (arrowhead)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found on four of five plants in an empty lot in Hialeah (Miami-Dade County; E2002-5665; Edward T. Putland; 18 November 2002). NEW DPI HOST RECORD.
Schinus terebinthifolius (brazilian peppertree)-- Maconellicoccus hirsutus (Green), pink hibiscus mealybug: A severe infestation was found near a generating station in Pembroke Pines (Broward County; E2002-5641; Thomas Sallese, USDA/APHIS/PPQ; 21 November 2002). NEW DPI HOST RECORD.
Vinsonia stellifera (Westwood), stellate scale; A slight infestation was found in a wooded lot in Hialeah (Miami-Dade County; E2002-5627; Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD.
Toxicodendron radicans (poison ivy)-- Hemicheyletia anarbora De Leon, a cheyletid mite: Specimens were found in Hugh Taylor Birch State Park near Ft. Lauderdale (Broward County; E2002-5729; Julieta Brambila; 22 November 2002). NEW DPI STATE RECORD. This mite is found on Caribbean islands and is a predator (Dr. W.C. 'Cal' Welbourn).
Wedelia trilobata (creeping seaoxeye, wedelia)-- Ceroplastes cirripediformis Comstock, barnacle scale: A moderate infestation was found in a vacant lot in Hialeah (Miami-Dade County; E2002-5629; Lynda F. Davis; 20 November 2002). NEW DPI HOST RECORD.
Vinsonia stellifera (Westwood), stellate scale: A slight infestation was found on a vacant lot in Hialeah (Miami-Dade County; E2002-5630; Lynda F. Davis; 20 November 2002). NEW DPI HOST RECORD.
NATIVE AND NATURALIZED PLANTS: Dicerandra frutescens (scrub balm, Lloyd's mint)-- Asterolecanium arabidis (Signoret), a pit scale: A slight infestation was found at the Historic Bok Sanctuary in Lake Wales (Polk County; E2002-5247; Nick Baker, Employee; 16 October 2002). NEW DPI HOST RECORD.Euthamia caroliniana (slender goldenrod)-- Alydus pilosulus Herrich Schaeffer, an alydid plant bug: A slight infestation was found on a roadside near Ft. Pierce (St. Lucie County; E2002-5695; Kenneth L. Hibbard; 18 November 2002). NEW DPI COUNTY RECORD.
Antillocoris discretus Barber, a lygaeid plant bug: A slight infestation was found on a roadside near Yeehaw Junction (Osceola County; E2002-6050; Kenneth L. Hibbard; 16 December 2002). NEW DPI COUNTY RECORD.
Nysius raphanus Howard, false chinch bug: A slight infestation was found on a roadside in Vero Beach (Indian River County; E2002-5790; Kenneth L. Hibbard; 25 November 2002). NEW DPI COUNTY RECORD.
Nysius tenellus Barber, a seed bug: A slight infestation was found on a roadside in Palm Bay (Brevard County; E2002-5849; Kenneth L. Hibbard; 3 December 2002). NEW DPI COUNTY RECORD.
Sophora tomentosa (yellow necklace pod, silverbush)-- Phenacoccus madeirensis Green, Madeira mealybug: A moderate infestation was found at a residence in New Smyrna (Volusia County; E2002-5891; Raymond C. Jarrett; 5 December 2002). NEW DPI HOST RECORD.
BENEFICIAL INSECTS: Colopha graminis (a woolly grass aphid)-- Aphelinus prociphili Carver, an aphid parasite: A specimen emerged from a severe infestation of C. graminis on grass at a nursery in Miami (Miami-Dade County; E2002-5626; Lynda F. Davis; 15 November 2002). NEW DPI HOST RECORD for parasite.
FEDERAL/STATE PLANT PROTECTION & QUARANTINE PROGRAMS: Bactrocera dorsalis (Hendel), Oriental fruit fly complex: A single male was collected in a Jackson trap in Syzygium in Pompano Beach (Broward County; E2002-5453; Mark C. Williams; 5 November 2002). Intensified trapping will continue in the surrounding area for an estimated three life cycles. No additional flies had been detected through December. Oriental fruit fly was detected two times previously during 2002, both in the Orlando area (Dr. Gary J. Steck). APIARY PESTS: Aethina tumida Murray, small hive beetle: Larvae were collected from a 3-story complex where they have been crawling from the baseboard of an exterior wall on the 2nd floor. Dozens have been found since early November in Tamarac (Broward County; E2002-5994; homeowner; December 2002). There is evidently a bee hive in the wall (Dr. Michael C. Thomas). INSECT DETECTION: Dieuches armatipes Walker, a seed bug: A specimen was collected at a mercury vapor light in Delray Beach (Palm Beach County; E2002-5964; Vince Golia, DPI Research Associate; 9 August 1994). NEW DPI USA CONTINENTAL RECORD FOR THE GENUS. This bug is native to Africa, where literature records D. armatipes as a moderately serious peanut pest. No damage to peanuts has been observed so far in Florida (Julieta Brambila).
A specimen was collected in a Jackson trap in a citrus grove in Winter Haven (Polk County; E2002-5918; Martha A. 'Ginger' Simpson, USDA/APHIS/PPQ; 5 December 2002). NEW DPI COUNTY RECORD.
Eremocoris depressus Barber, a seed bug: A specimen was found indoors at a residence in Gainesville (Alachua County; E2002-5867; Julieta Brambila; 24 November 2002). This bug is known from New Jersey to Louisiana and Florida. It is an arboreal pine cone feeder. NEW DPI COUNTY RECORD (Julieta Brambila).
Greenidea sp., an aphid: A single damaged specimen was collected in a suction trap in Kendall (Miami-Dade County; E2002-5901; Gwen H. Myres; 27 November 2002). Greenidea spp. belong to an Asian subfamily of aphids. One species of Greenidea has become established in California in recent years. More specimens are needed to determine whether the species in Florida is the same as the one in California. NEW DPI STATE RECORD (Dr. Susan E. Halbert).
Neortholomus jamaicensis (Dallas), a seed bug: A specimen was found in a sweep sample taken near a boat ramp in Tampa (Hillsborough County; E2002-5875; James R. Martin and Amy R. Simington; 5 December 2002). This bug occurs in the Neotropics and Florida. NEW DPI COUNTY RECORD (Julieta Brambila).
Sepedomerus macropus (Walker), a marsh fly: A specimen was collected in a multi-lure trap in Opa-Locka (Miami-Dade County; E2002-5438; Carlos M. Pelegrin; 31 October 2002). NEW DPI STATE RECORD. Larvae are aquatic predators of snails. This species also occurs in the Greater Antilles, Texas, Mexico, and Central and South America (Dr. Gary J. Steck).
Sinoxylon anale Lesne, a bostrichid beetle: Seven specimens were intercepted in a wooden crate shipped from China to Tallahassee (Leon County; E2002-5540-702; Rosemary Long, employee of shipping company; 13 November 2002).
Sinoxylon conigerum Gerstaeker, a bostrichid beetle: Seven specimens were intercepted in a wooden crate shipped from China to Tallahassee (Leon County; E2002-5540-701; Rosemary Long, employee of shipping company; 13 November 2002).
Trogoderma fasciferum Blatchley, a beetle; A specimen was collected in a scolytid trap in Miami (Miami-Dade County; E2002-5750; Gwen H. Myres; 20 November 2002). This is a very rare Florida endemic beetle (Dr. Michael C. Thomas).
| Botany Section | Entomology Section | Nematology Section | Plant Pathology Section | Back to Top |
NEMATOLOGY
SECTION
Compiled by Janete A. Brito, Ph.D. and Paul S. Lehman, Ph.D.
A total of 4,229 soil and root samples was processed in November and December 2002. Details are shown below:
| Certification and Regulatory Samples: | Other Samples: |
| Multistate
Certification for National and International Export
2,760
California Certification 1042 Burrowing Nematodes 74 Premovement (Citrus Nursery Certification) 96 Site or Pit Approval (Citrus Nursery Certification) 28 |
Plant
Problems 65
Intrastate Survey Random 164 |
Summary of the total number of samples from January 1 to December 31, 2002
Molecular diagnostic samples January 1 to
June 30, 2002 2,796
Molecular diagnostic samples
July 1 to December 31, 2002 2,218
Total molecular diagnostic samples for calendar
year 2002 5,014
Total soil and root samples
for morphological diagnoses 18,262
Total number of sample analyses for calendar year 2002 23,279 Note: In the calendar year 2002, the Nematology Section has complemented the morphological nematode diagnostic work with molecular analyses. Dr. Janete Brito and Jason Stanley will be conducting the molecular work performed by the Section. This Triology issue reports a total of 5,014 molecular diagnoses for the 2002 calendar year, but beginning in 2003 samples analyzed with molecular procedures will be listed bimonthly in Triology.
Nematodes of Special Interest
Houttuynia sp. (houttuynia) - Aphelenchoides besseyi Christie 1942, the rice white-tip nematode, was found infecting the leaves of this perennial herb (Alachua County; N02-1590; Robert M. Leahy; 25 October 2002). Reddening of the foliar tissues was the most common symptom observed on nematode-infected plants.
Rudbeckia sp. (coneflower) - Aphelenchoides besseyi Christie 1942, the rice white-tip nematode, was found infecting the leaves of this perennial herb (Alachua County; N02-1589; Robert M. Leahy; 25 October 2002). Angular chlorotic areas were common symptoms exhibited by nematode infected leaves.
COLLECTORS SUBMITTING FIVE OR MORE SAMPLES THAT WERE PROCESSED FOR NEMATOLOGICAL ANALYSIS DURING NOVEMBER AND DECEMBER 2002:| Dale, S. Kaplan
11
Echols, M. Janie 15 Emery, Tyson R 18 Frere, Christine J. 9 Fuller, Samuel A. . 318 Harris, Jessie M. 37 Jarrett, Raymond C 44 LeBoutillier, Karen W. 331 |
Looker, Sol F 34
Ochoa, A. 392 Ooms, L. 110 Pate, J. 48 Qiao, Ping 131 Robinson, William L. 162 Salisbury, Thomas L. 266 Stone, C. 95 Wiglesworth, Jim R. 46 |
PLANT
PATHOLOGY SECTION
Compiled by Robert M. Leahy
For this period the Plant Pathology section received and processed 1,327 specimens. These included 501 pathology, 14 miscellaneous, and 4 soil samples. Eight hundred eight citrus canker diagnoses were performed, including full pathogenicity tests on 13 samples from southeast Florida, 1 from central gulf coastal Florida, 4 from southwest gulf coastal Florida, 3 from central Florida, and 11 from north Florida.
ORNAMENTALS, WOODY PLANTS AND PALMS: Clethra alnifolia 'Ruby Spice' (ruby spice summersweet)-- Pseudocercospora sp., leaf spot: Collected at a nursery in Citra (Marion County; P2002-6424; Floyd McHenry;15 October 2002). NEW HOST RECORD.
Senna bicapsularis (cassia)-- Nectria sp., stem canker: Collected at a nursery in Gainesville (Alachua County; P2002-5333; Alan Shapiro, owner; 10 October 2002). NEW HOST RECORD.
ORNAMENTALS, FLOWERING PLANTS: Adenium obesum (desert rose)-- Cucumber Mosaic Cucumovirus, virus: Collected at a nursery in Naples (Collier County; P2002-6752; Scott D. Krueger; 7 November 2002). NEW HOST RECORD.Helianthus annuus (sunflower)-- Alternaria helianthi (Hansf.) Tubaki & Nishihara, leaf spot: Collected at a nursery in Yalaha (Lake County, P2002-6685 Dr. James O. Strandberg, IFAS Mid-Florida Research and Education Center; 31 October 2002).
Salvia madrensis (forsythia sage)-- Kutilakesa pironii Alfieri, fungus: Collected at a nursery in Gainesville (Alachua County; P2002-6544; Robert M. Leahy; 25 October 2002). NEW HOST RECORD.
FOREST AND SHADE TREES: Rhizophora mangle (red mangrove)-- Pseudocercospora rhizophorae (Craeger) Castaneda & U. Braun, leaf spot: Collected at a nursery in Hollywood (Broward County; P2002-6531; Lori A. Richards; 17 October 2002).
Taxodium distichum (bald cypress)-- Meruliopsis taxicola (Pers.) Bondartsev in Parmasto, white rot: Collected at a nursery in Clermont (Lake County; P2002-6733; Dr. Edward Barnard; 7 November 2002). NEW STATE RECORD.
Ulmus alata (winged elm)-- Uncinula macrospora Peck, powdery mildew: Collected at a side of road in Gainesville (Alachua County; P2002-6785; Dr. Timothy S. Schubert; 14 November 2002). NEW HOST RECORD.
FOOD OR CROP PLANTS: Zea mays (corn)-- Pyricularia grisea Sacc., leaf spot: Collected at a feed store in Naples (Collier County; P2002-6641; Scott D. Krueger; 30 October 2002). NEW HOST RECORD. WEEDS AND GRASSES: Lygodium microphyllum (fern)-- Cordella sp., secondary fungus: Collected at a USDA laboratory in Gainesville (Alachua County; P2002-6955; Robert M. Leahy and Dr. Gary D. Buckingham; 6 December 2002). NEW HOST RECORD.Lygodium volubile (fern)-- Cordella sp., secondary fungus: Collected at a USDA laboratory in Gainesville (Alachua County; P2002-6949; Robert M. Leahy and Dr. Gary D. Buckingham; 6 December 2002). NEW HOST RECORD.
1. This is Carlos Artaud's final report for Tri-ology. He has reported the Botany Section's sample identifications since 1991, taking over from Dr. K. R. Langdon, the first head of the Office of Systematic Botany, and sharing reporting duties with Dr. Nancy C. Coile, the second head of the Office (later the Botany Section). Carlos is taking a well-earned retirement after nearly 37 years with the Division of Plant Industry.-Mark A. Garland, Managing Editor, and Dr. Wayne N. Dixon, Editor.
