Triology Vol. 38, No. 3, DPI

TRI-OLOGY, Vol. 38, No. 3
Nancy C. Coile, Ph. D., Managing Editor
MAY-JUNE 1999

Wayne N. Dixon, Ph. D., Editor

BOTANY SECTION
Compiled by Carlos R. Artaud

Added to the herbarium collection during this period were 19 mounted specimens (total of 7,658). Mark L. Runnals (R2A6) submitted one specimen which was added to the herbarium. For this period, 152 specimens were submitted to Botany for identification, and 509 were received from other Sections for identification and/or name verification (for a total of 661). Some of the samples are described below:

Acalypha hispida Burm. f., Euphorbiaceae, chenile plant, red-hot cattail: Dioeciousshrub 3-4.5 m tall. Leaves 12.5-14 cm long, and 7.5-9 cm wide, broadly ovate, acute or shortly acuminate, bright green, slightly pubescent above; margins crenate. Female flower spikes axillary, dense, pendent, tassel-like, 3-50 cm long, and over 2.5 cm wide, flowers bright red. Cultivar `Alba' with flowers creamy-white. Probably native to the Malay Archipelago. (Lee County; B99-203; Sheila J. Foe; 27 May 1999). (Bailey 1976; Huxley 1972).

Alpinia calcarata (Haw.) Roscoe, Zingiberaceae, Indian ginger: Perennial herb, with ginger-scented rhizomes. Leafy stems slender, to 1 m tall. Leaves 30 cm long, and 2.5-5 cm wide, narrowly-lanceolate, sessile, green and glossy on both surfaces, softly and sparsely ciliate. Inflorescence a panicle to 10 cm long; rachis pubescent; flowers usually paired; bracts absent or small; short-lived; lip to 3 cm long, yellow, veined red or maroon; lateral staminodes small; anther cells minutely margined; ovules many in a cell. Capsule globose, red. Widely cultivated. Native to China, and India. (Pinellas County; B99-129; Alan R. Haynes; 21 April 1999). (Hooker 1893; Huxley 1992).

Calotropis gigantea (Ait.) Ait. f., Asclepiadaceae, mudar, giant milkweed: Shrub or small tree to 5 m tall, multi-branched. Leaves opposite, subsessile, obovate-oblong to broadly elliptic or suborbicular, cordate at base, white felted when young, to 30 cm long, and 18 cm wide. Flowers in umbelliform axillary cymes, peduncles 4-8 cm long; pedicels 1-3 cm long; calyx purplish within, lobes ovate, 4-6 mm long; corolla 2-2.5 cm across, greenish-white on outside, purplish within; follicles swollen, to about 8 cm long. Introduced and naturalized in the American tropics. Native from India to Iran and Africa. (Polk County; B99-186; Sharon B. Garrett; 19 May 1999). (Bailey 1976; Correll and Correll 1992).

Ixora hookeri (Oudem.) Bremek., Rubiaceae, white ixora: Shrub or small tree. Leaves 11-15.5 cm long, oblong-elliptic, with acuminate apex, and obtuse base, petioles 5-18 mm long. Inflorescence a corymbose cyme, sessile or pedunculate, many-flowered, lax; calyx teeth 1-1.5 mm long, slightly longer than tube, acute; corolla white tinged pink or red, tube 6-8 cm long, lobes 1-1.6 cm long, obtuse. Native of Madagascar. (Orange County; B99-231; Terrence D. Williams; 3 June 1999). (Huxley 1992).

Ixora pavetta Andrews (=I. parviflora Vahl), Rubiaceae, torch tree: Small tree, branched. Leaves subsessile, 7-15 cm long, and 3.5-6.5 cm wide, elliptic or oblong-elliptic with obtuse or shortly acuminate apex, base obtuse to rounded. Inflorescence subsessile to shortly pedunculate, crowded, longer than wide; calyx teeth minute, shorter than tube; corolla fragrant, white, small, tube ca. 8 mm long, lobes ca. 3 mm long, oblong-elliptic. From India, Bangladesh, Pakistan, and Sri Lanka. (Palm Beach County; B99-144; Barbara J. Wilder; 2 May 1999). (Bailey 1976; Huxley 1992).

Ledebouria socialis (Bak.) Jessop (=Scilla socialis Bak.; S. violacea Hutch.), Liliaceae (Hycinthaceae), silver squill: Bulbous perennial, bulbs to 2 cm long, ovoid, often purple, produced into a neck. Leaves to 10 cm long, and 2 cm wide, erect-spreading or spreading, few to many, slightly fleshy, lanceolate, narrowed into a petiole-like base, upper surface with a silver sheen and some dark green blotches, green or deep pink-purple beneath. Racemes sub-erect, to 25-flowered, tepals pale purple with green keels. From South Africa. (Orange County; B99-172; Tom L. Phillips; 17 May 1999). (Bailey 1976; Huxley 1992).

Manfreda maculosa (Hook.) Rose [=Agave maculosa Hook.; Polianthes maculosa (Hook.) Shinners], Liliaceae (Agavaceae), American aloe, huaco: Basal leaves 6-10, narrowly lanceolate, recurved, blotched with brown, sometimes green, margins serrulate. Inflorescence a spike-like raceme, flowers as many as 25, nearly sessile, to 5 cm long; tube narrowly funnel-shaped, longer than the purplish or greenish white lobes; filaments shorter than the lobes; anther cells exerted, brownish; stigma 3-lobed. capsule globose-oval to globose-subquadrate, 20-25 mm long, slightly pointed. From Texas, and northern Mexico. (Orange County; B99-192; T. Mark Thurmond, USDA/APHIS/PPQ; 24 May 1999). (Bailey 1976; Correll and Johnston 1970; Huxley 1992).

Ochna serrulata (Hochst.) Walp., Ochnaceae, Mickey-mouse plant: Shrub or small tree to 2.25 m tall. Branches lenticellate, golden-brown to bronze. Leaves to 6 cm long, narrowly elliptic, margins serrulate, surface glossy. Flowers solitary or in clusters, on lateral branchlets; calyx lobes yellow-green becoming enlarged, reflexed and bright red in fruit; petals obovate, yellow, caducous. Drupes to 5, 1 cm in diameter each, ripening glossy black, on a large red receptacle. Native of South Africa. (Orange County; B99-151; Terrence D. Williams; 6 May 1999). (Huxley 1992).

Tabebuia rosea (Bertol.) DC., Bignoniaceae, pink poui: Tree to 27 m tall. Trunk columnar, smooth, twisted or longitudinally striate, base sometimes buttressed. Leaves palmately 5-foliate; petioles 5-30 cm long, terminal petiolules 2-10 cm long, others 0.2-2.4 cm long, scaly; leaflets 3.5-33 cm long, and 1.5-18 cm wide, oblong to ovate-elliptic, apex acute or acuminate, base cuneate to obtuse, margins entire, leathery, scaly. Inflorescence lax, flowers paired; peduncle and pedicel scaly; calyx 11-21 mm long, glandular-scaly; corolla 5-10 cm long, funnelform, white, pink, or lilac, throat yellow becoming white; disc cupular. Fruit terete, 38 cm long, and 1.5 cm in diameter, glandular scaly; seeds with 2 membranous wings. Abundantly used as a street planting in south Florida, and elsewhere. Native from Mexico to Colombia and northern Venezuela. (Broward County; B99-214; Stephen H. Brown, University of Florida, Lee County Extension Service; 25 April 1999). (Bailey 1976; Huxley 1992).

Ternstroemia japonica Thunb. [=T. gymnnathera (Wright & Arn.) T. Sprague], Theaceae, ternstroemia: Glabrous shrub or small tree to 3.5 m tall; crown much-branched, branches thick, rusty-gray. Leaves 4-7 cm long, and 1.5-2.5 cm wide, alternate, crowded at end of shoots, narrowly cuneate-obovate, apex rounded to very obtuse, base cuneate to acuminate, margins entire. Flowers white, axillary, deflexed, on pedicels to 2 cm long; sepals 5, orbicular, irregularly-dentate; petals obovate-cuneate; stamens many, anthers longer than filaments. Fruit globose, 10-12 mm in diameter, calyx persistent at base. Native to Japan. (Orange County; B99-259; Barbara J. Wilder; 24 June 199). (Huxley 1992; Li 1976).

GLOSSARY: caducous: deciduous, lasting for a short time; dioecious: having the staminate () and pistillate () flowers on separate plants; staminode: an abortive stamen, may be showy and petal-like (Canna); tepals: perianth, sepals and petals of similar form.

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.
Correll, D. S. and M. C. Johnston. 1970. Manual of the vascular plants of Texas. Texas Research Foundation, Renner. 1,881 p.
Gibson, D. N. 1974. Flora of Guatemala. Solanaceae. Fieldiana. 24 (V): 260-261.
Hooker, J. D. 1893. The Flora of British India. Orchidaceae to Cyperaceae. VI: 254.
Huxley, A. J. (ed.) 1992. New Royal Horticultural Society dictionary of gardening. 4 vols. Macmillan Press, London. 3,240 p.
Li, Hui-Lin. 1976. Flora of Taiwan. Theaceae. II: 616-619.

ENTOMOLOGY SECTION
Compiled by Susan E. Halbert, Ph.D.

For the month of May, there were 744 samples consisting of 11,203+ specimens. In June, there were 547 samples consisting of 7,432+ specimens. Some of the samples processed are listed below:

ORNAMENTALS, WOODY PLANTS AND PALMS: Clausena lansium (wampi)-- Diaphorina citri Kuwayama, Asian citrus psyllid: A slight infestation was found on a plant at a residence in Delray Beach (Palm Beach County; E99-1211; Ellen J. Tannehill; 28 April 1999). NEW DPI HOST RECORD.

Murraya paniculata (orange-jessamine, Chinese-box, orange-jasmine, Florida Exotic Pest Plant Council's category II species)-- Diaphorina citri Kuwayama, Asian citrus psyllid: Moderate infestations were found at nursery stock dealerships in Kissimmee (Osceola County; E99-1251; Terrence D. Williams; 5 May 1999) and Orlando (Orange County; E99-1715; Terrence D. Williams; ). Both finds are NEW DPI COUNTY RECORDS. It is evident from these and other recent new DPI records that Asian citrus psyllids are being moved around the state of Florida on nursery stock, particularly orange-jessamine (Dr. Susan E. Halbert).

ORNAMENTALS, FOLIAGE PLANTS: Aglaonema sp. (aglaonema)-- Ceroplastes rubens Maskell, red wax scale: A slight infestation was found at a nursery in Naples (Collier County; E99-1426; Scott D. Krueger; 21 May 1999).

Gramineae (a bamboo)-- Kuwanaspis pseudoleucaspis (Kuwana), bamboo diaspidid scale: A moderate infestation was found at a hardware store in Naples (Collier County; E99-1615; Scott D. Krueger; 4 June 1999). NEW DPI COUNTY RECORD.

ORNAMENTALS, FLOWERING PLANTS: Gardenia augusta (gardenia) -- Minutaleyrodes minutus (Singh), minute whitefly and Protopulvinaria pyriformis (Cockerell), pyriform scale: A severe mixed infestation was found at a residence in St. Petersburg (Pinellas County; E99-530; K. Lea Etchels; 28 February 1999). The minute whitefly collection is a NEW DPI COUNTY RECORD.

-- Minutaleyrodes minutus (Singh), minute whitefly: A moderate infestation was found at a nursery in Orlando (Orange County; E99-600; Terrence D. Williams; 10 March 1999). NEW DPI COUNTY RECORD.

Ixora coccinea (ixora)-- Colaspis pseudofavosa Riley, a leaf beetle: A moderate to severe infestation was found on all of 100 plants at a nursery in Orlando (Orange County; E99-1619; Terrence D. Williams; 7 June 1999).

Oncidium sp. (an orchid)-- Pinnaspis buxi (Bouché), screwpine scale: A moderate to severe infestation was found at a nursery in Delray Beach (Palm Beach County; E99-614; Laura L. Ooms and Dennis C. Clinton; 10 March 1999). NEW DPI HOST RECORD.

Passiflora sp. (a passion flower)-- Thrips palmi Kamy, melon thrips: infestation on 500 plants was found at a nursery in Miami (Miami-Dade County; E99-986; Edward T. Putland; 15 April 1999).

Spathiphyllum sp. (a peace lily)-- Jikradia melanota (Spångberg), a coelidiine leafhopper: A moderate infestation with both nymphs and adults was found at a nursery in Windermere (Orange County; E99-1634; Barbara J. Wilder and Anthony N. Capitano; 8 June 1999). This very unusual leafhopper is not well known biologically, and it is rare to find more than one or two specimens (Dr. Susan E. Halbert and Dr. Paul H. Freytag, University of Kentucky). NEW DPI HOST RECORD.

Strelitzia nicolai (white bird of paradise)-- Parasaissetia nigra (Nietner), nigra scale: A slight infestation was found on a plant at a nursery in Orlando (Orange County; E99-1320; Terrence D. Williams; 13 May 1999). NEW DPI HOST RECORD.

Tagetes sp. (a marigold)-- Tetranychus gloveri Banks, a mite: A severe infestation was found on 20 plants at a hardware store in South Daytona (Volusia County; E99-1200; Raymond C. Jarrett, Jr.; 3 May 1999).

FOOD AND CROP PLANTS: Capsicum annuum (pepper)-- Anthonomus eugenii Cano, pepper weevil: A severe infestation on 40 acres was found in Homestead (Miami-Dade County; E99-1330; Edward T. Putland; 12 May 1999).

-- Diabrotica balteata LeConte, banded cucumber beetle and Diabrotica undecimpunctata howardi Barber, southern corn rootworm beetle/spotted cucumber beetle: A severe mixed infestation on 10,000 plants was found at a nursery in Apopka (Orange County; E99-1515; Tom L. Phillips; 27 May 1999).

--Nysius raphanus Howard, false chinch bug: A severe infestation was found on 40 acres in Homestead (Miami-Dade County; E99-1325; Edward T. Putland; 12 May 1999).

unknown host--Nysius raphanus Howard, false chinch bug: A moderate infestation on 10,000 of 50,000 plants at a nursery was found in Apopka (Orange County; E99-1697; Leslie J. Wilber; 16 June 1999).

Lycopersicon esculentum (tomato)-- Tetranychus evansi Baker & Pritchard, a mite: A severe infestation was found at a residence in Rockledge (Brevard County; E99-1456; Gregory A. Brown and Les Manns, volunteer master gardener, Brevard County Extension; 24 May 1999). This mite can be a serious pest of tomato (Dr. Warren C. 'Cal' Welbourn).

Mangifera indica (mango)-- Milviscutulus (= Protopulvinaria) mangiferae (Green), mango shield scale: A severe infestation was found on a plant at a residence in Homestead (Miami-Dade County; E99-1032; Edward T. Putland; 16 April 1999).

Saccharum officinarum (sugarcane)-- Saccharicoccus sacchari (Cockerell), pink sugarcane mealybug: An infestation was found in production fields near Clewiston (Hendry County; E99-542; Michael Simms, sugar company entomologist; 26 February 1999). NEW DPI COUNTY RECORD.

Zea mays (sweet corn)-- Agromyza parvicornis Loew, corn leafminer: A moderate infestation was found in a field near Jay (Santa Rosa County; E99-1256; Daniel E. Mullins, Santa Rosa County Extension Agent; 22 April 1999). NEW DPI COUNTY RECORD.

CITRUS: Citrus aurantifolia (lime)-- Ceroplastes cirripediformis Comstock, barnacle scale: An infestation was found at a discount store in Oakland Park (Broward County; E99-1246; James 'Keith' Harris; 7 May 1999).

-- Diaphorina citri Kuwayama, Asian citrus psyllid: A moderate infestation was found at a residence in Key West (Monroe County; E99-1722; Robert R. Pelosi, University of Florida's Indian River Research and Extension Center; 14 June 1999). NEW DPI COUNTY RECORD.

Citrus jambhiri (rough lemon) and Murraya paniculata (orange-jessamine, Florida Exotic Pest Plant Council category II species)-- Diaphorina citri Kuwayama, Asian citrus psyllid and Toxoptera citricida (Kirkaldy), brown citrus aphid: A moderate infestation was found at a residence on Grand Bahama Island, Bahamas (E99-1775; Robert R. Pelosi and Dr. Robert C. Bullock, University of Florida's Indian River Research and Extension Center; 19 June 1999).

Citrus sinensis (sweet orange)-- Diaphorina citri Kuwayama, Asian citrus psyllid: A slight infestation was found in a commercial grove near Indiantown (Martin County; E99-1268; Dr. Robert C. Bullock, University of Florida's Indian River Research and Education Center; 5 May 1999).

Citrus spp. (several citrus species)-- Diaphorina citri Kuwayama, Asian citrus psyllid: A moderate infestation was found at residences in Sandy Point, Abaco Island, Bahamas (E99-1776; Robert R. Pelosi and Dr. Robert C. Bullock, University of Florida's Indian River Research and Education Center; 19 June 1999). BAHAMIAN NATIONAL RECORD.

WEEDS AND GRASSES: Morrenia odorata (latex plant)-- Oncopeltus cingulifer Stål, a milkweed bug: A moderate to severe infestation was found in a citrus grove in Orlo Vista (Orange County; E99-1384; Lynn E. Zellers; 17 May 1999). NEW DPI HOST RECORD and NEW DPI COUNTY RECORD.

Schinus terebinthifolius (Brazilian pepper tree, Florida Prohibited Plant)-- Ceroplastes floridensis Comstock, Florida wax scale and Parasaissetia nigra (Nietner), nigra scale: A severe mixed infestation was found at a residence in Homestead (Miami-Dade County; E99-1625; Edward T. Putland; 4 June 1999).

NATIVE AND NATURALIZED PLANTS: Crinum americanum (string lily)-- Xanthopastis timais (Cramer), Spanish moth: A severe infestation on over 100 plants was found at a roadside in High Springs (Alachua County; E99-1637; Joseph S. Beckwith; 2 May 1999). NEW DPI HOST RECORD.

Ilex ambigua (Carolina holly, or sand holly)-- Asterolecanium puteanum Russell, holly pit scale: A slight infestation was found in a nature preserve near Port St. Lucie (St. Lucie County; E99-1434; Kenneth L. Hibbard; 19 May 1999). NEW DPI HOST RECORD.

Tillandsia fasciculata (common wildpine, cardinal airplant, Florida endangered plant species due to Metamasius weevil)-- Sibinia vagabunda Champion, a weevil: A slight infestation was found on a plant at a nursery in Sarasota (Sarasota County; E99-1062; Mark L. Runnals; 22 April 1999). This weevil is found from its native southern Mexico to northern South America. Although found on a bromeliad here, the native hosts are acacias and similar trees (Dr. Michael C. Thomas). NEW USA CONTINENTAL RECORD.

BENEFICIAL INSECTS: Diaprepes abbreviatus (diaprepes weevil, citrus root weevil)-- Anystis sp., a whirligig mite: A specimen was found feeding on citrus root weevil eggs in Homestead (Miami-Dade County; E99-994; Dr. Jorge E. Peña, University of Florida's Tropical Research and Education Center; February 1999). This mite is a common general predator (Dr. W. C. 'Cal' Welbourn).

FEDERAL/STATE PLANT PROTECTION AND QUARANTINE PROGRAMS: X Citrofortunella microcarpa (calamondin)-- Bactrocera dorsalis (Hendel) complex, oriental fruit fly: Two wild male flies were detected in a Jackson trap baited with methyl eugenol (ME) in south Tampa (Hillsborough County; E99-1344; Richard H. Degan, DPI fruit fly trapper; 17 May 1999). Large numbers of ME-baited Jackson traps and McPhail detection traps were placed in a grid surrounding the find according to protocol guidelines. A total of 12 flies (8 males, 4 females) was trapped through 11 June 1999, all confined to a small area of three residential blocks. The oriental fruit fly complex comprises over 50 species, including several highly damaging fruit pests, mainly from southeast Asia, and all very similar in appearance. Since males respond so strongly to ME, eradication is achieved through "male annihilation." Large numbers of ME/insecticide bait stations were established throughout 7.3 square miles surrounding the fly finds. Six bait applications at 2-week intervals were planned to remove wild males from the population, thus preventing females from mating, and forcing the population to extinction (Dr. Gary J. Steck).

INSECTS OF MEDICAL AND VETERINARY IMPORTANCE: Ornithonyssus bursa (Berlese), tropical fowl mite: Infestations were found in homes in Ft. Lauderdale (Broward County; E99-1112; Dr. Forrest W. 'Bill' Howard, University of Florida's Ft. Lauderdale Research and Education Center; 27 April 1999) and Ft. Pierce (St. Lucie County; E99-1563, E99-1567; homeowner; 1 June 1999). These mites are parasites of birds, but they will also bite people. Infestations in homes usually are associated with bird nests. Thus, the best control is to find and remove the source, usually a bird nest or chicken house (Dr. W. C. 'Cal' Welbourn).

APIARY PESTS: Aethina tumida Murray, small hive beetle: Infestations were found in De Soto County (E99-1447; John L. Bastianelli; 7 May 1999) and St. Augustine (St. Johns County; E99-1611; Tomas Mozer; 1 June 1999). Both finds are NEW DPI COUNTY RECORDS.

INSECT DETECTION: Charaphloeus bituberculatus (Reittler), a laemophloeid beetle: A single specimen was collected at a black light in Sarasota (Manatee County; E99-1367; Mark L. Runnals; 17 May 1999). NEW DPI COUNTY RECORD.

Sandalus sp., a rhipicerid beetle: A specimen was found on the side of a building in Ft. Pierce (St. Lucie County; E99-1485; Kenneth L. Hibbard; 23 May 1999). The larvae of this rare beetle are parasites on dead cicada nymphs (Dr. Michael C. Thomas).

unknown host--Dendracoris fruiticicola Bergrath, a stinkbug: A specimen was collected in a nature preserve at Boulogne (Nassau County; E99-1677; Dr. Glavis B. 'G.B.' Edwards; 16 June 1999). NEW DPI COUNTY RECORD.

Botany Section

Entomology Section

Nematology Section

Plant Pathology Section

NEMATOLOGY SECTION
Compiled by Paul S. Lehman, Ph.D.

A total of 2,981 samples were processed in May and June of 1999. Details are shown below:

Certification and Regulatory Samples:
Multistate Certification for National and International Export 1,876
California Certification 614
Burrowing Nematode (Citrus Regulatory Survey) 54
Premovement (Citrus Nursery Certification) 127
Site or Pit Approval (Citrus Nursery Certification) 49

Other Samples:
Plant Problems 66
Out of State Survey, via Florida Identifications 3
Intrastate Survey, Random 192

NEMATODES NEW TO FLORIDA (January-June 1999): The following list summarizes the nematodes which are reported as new to Florida from January 1 to June 30, 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) .

Bambusa sp. (a bamboo)-- Dolichodorus pulvinus Khan, Seshadri, Weischer & Mathen, 1971, an awl nematode:(Alachua County; N99-00145; Christine A. Zamora and Dr. Robert P. Esser; 29 January 1999).

Bambusa sp. (a bamboo)-- Caloosia luci (Dhanachand & Jairajpuri, 1980) Raski & Luc, 1987, a sheath nematode: Alachua County; N99-00145; Christine A. Zamora and Dr. Robert P. Esser; 29 January 1999).

Dichanthelium laxiflorum (=Panicum laxiflorum) (openflower witchgrass, a native species)--Longidorous cylindricaudatus Kozlowska & Seinhorst, 1979, a needle nematode: (Alachua County; N99-00406; Christine A. Zamora and Dr. Robert P. Esser; 23 March 1999).

Dryopteris ludoviciana (southern wood fern, a native species)-- Criconema nemalense E. Khan, M. Singh & M. Lai, 1998, a spine nematode: (Alachua County; N98-01389; Christine A. Zamora and Dr. Robert P. Esser; 29 December 1999).

Imperata cylindrica (cogongrass, Federal Noxious Weed)--Mesocriconema calvatum (Eroshenko, 1981) Loof & de Grisse, 1989, a ring nematode: (Alachua County; N99-001396; Dr. Marc C. Minno, St. Johns River Water Management District, and Maria Minno; 29 November 1999).

Licania michauxii (gopher-apple, a native species)--Mesocriconema pseudosolivagum (de Grisse, 1964) Andrassy, 1965, a ring nematode: (Brevard County; N99-00841; Gregory A. Brown; 8 June 1999).

Smilax auriculata (earleaf greenbrier)--Dolichodorus cobbi Sagitov, 1973, an awl nematode: (Alachua County; N99-00268; Christine A. Zamora and Dr. Robert P. Esser; 4 May 1999).

Taxodium distichum (bald-cypress, a native species)--Ogma taylori (Jairajpuri, 1964) Siddiqi, 1985, a spine nematode: (Alachua County; N99-00145; Christine A. Zamora and Dr. Robert P. Esser; 20 January 1999).

Ulmus americana (American elm, a native species)--Xiphinema rivesi Dalmasso, 1969, a dagger nematode: (Alachua County; N99-00730; Christine A. Zamora and Dr. Robert P. Esser; 21 May 1999).

COLLECTORS SUBMITTING FIVE OR MORE SAMPLES THAT WERE PROCESSED FOR NEMATOLOGICAL ANALYSIS DURING MAY AND JUNE 1999:

Dees, Carrie A. 124
Esser, Dr. Robert P. 18
Fuller, Samuel A. 785
Harris, Jessie M. 55
LeBoutillier, Karen W. 151
Pate, JoAnn 63
Qiao, Ping . 290
Robinson, William L. 'Robbie' 171
Salisbury, Thomas L. 194
Smith, W. Wayne 111
Zamora, Christine A. 13

REFERENCES

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: J. J. 'Jack' McRitchie, Ph.D.

For this period, the Plant Pathology Section received and processed 1,637 specimens. These included 560 pathology, 10 miscellaneous, 11 soil, 3,008 suspected canker samples in Dade County, 11 in Manatee County, and 19 suspect canker samples from Collier County.

ORNAMENTALS, WOODY PLANT AND PALMS: Cycas taitungensis (emperor sago, named in 1994)-- Tubakia dryina (Sacc.) Sutton, leaf spot: Collected at a nursery in Lithia (Hillsborough County; P99-1119; Stacy A. Tyrala; 19 May 1999). NEW HOST RECORD.

Sabal causiarum (Puerto Rican hat palm)-- Stigmina palmivora (Sacc.) S.J. Hughes, leaf spot: Collected at a nursery in Freeport (Walton County; P99-1136; David Price; 21 May 1999). NEW HOST RECORD.

ORNAMENTALS, FOLIAGE PLANTS: Ornithogalum caudatum (sea-onion)-- Fusarium oxysporum Schlecht.:Fr., leaf spot: Collected at a nursery in Winter Garden (Orange County; P99-953; Barbara J. Wilder; 30 April 1999). NEW HOST RECORD.

Tabebuia chrysotricha (golden trumpet tree)-- Pseudomonas cichorii ((Swing.) Stapp, bacterial spot: Collected at a nursery in Lutz (Hillsborough County; P99-988; James R. Martin; 5 May 1999). NEW HOST RECORD.

Tillandsia sp. (a wildpine)-- Mycoleptodiscus terrestris (J. W. Gerdemann) Ostazeski, leaf spot: Collected at a nursery in Sarasota (Sarasota County; P99-1321; Mark L. Runnals; 11 June 1999). NEW HOST RECORD.

ORNAMENTALS, FLOWERING PLANTS: Impatiens hawkeri (New Guinea impatiens)-- Oidium sp., powdery mildew: Collected at a nursery in Deland (Volusia County; P99-966; John B. Taylor, consultant; 5 May 1999). NEW HOST RECORD.

FOOD OR CROP PLANTS: Malus sylvestris (apple)-- Spilocaea pomi Fr., apple scab: Collected at a nursery in Stuart (Martin County; P99-1235; Nury M. Marrone; 4 June 1999). NEW HOST RECORD.

NATIVE OR NATURALIZED: Melaleuca quinquenervia (melaleuca, Federal Noxious Weed)-- Pseudocercospora sp., leaf spot: Collected in USDA Biocontrol in Gainesville (Alachua County; P99-1132; Jason D. Stanley, USDA/University of Florida cooperator; 24 May 1999). NEW HOST RECORD.

OTHER DETECTIONS OF SPECIAL INTEREST: Parmentiera aculeata (guajilote)-- Cephaleuros virescens Kunze, an alga: Collected at a dooryard in Sarasota (Sarasota County; P99-991; Katherine A. Macias; 4 May 1999). NEW HOST RECORD.

Pinus elliottii (slash pine)-- Rhizina undulata Fries, post-fire regeneration root rot: Collected at a dooryard in Gainesville (Alachua County; P99-1391; Dr. James R. Meeker, FDACS/DOF, and Joe Wolf, Gainesville Regional Utilities; 18 June 1999). NEW STATE RECORD.

Charles H. Bronson, Commissioner - Richard Gaskalla, Director