Adam H. Putnam, Commissioner - Richard D. Gaskalla, Director

TRI-OLOGY, Vol. 36, No. 4
Nancy C. Coile, Ph. D., Managing Editor
JULY-AUGUST 1997

Wayne N. Dixon, Ph. D., Editor

ENPP Home | Tri-ology Home

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 32 mounted specimens (total of 7,532). Anthony N. Capitano (R1A2) submitted two specimens; Steven H. Cook (R3A2), Alan R. Haynes (R2A3), and Maria E. Peacock (R1A1) each submitted one specimen which were added to the herbarium. For this period, 119 specimens were submitted to Botany for identification, and 439 were received from other Sections for identification and/or name verification (for a total of 558). Some of the samples are described below:

Apios americana Medik, Leguminosae, groundnut, potato bean: Herbaceous, high-climbing vine to 3 m long or longer. Rhizomes bear chains of small, white tubers. Leaves pinnately compound, 12-15 cm long, leaflets stipellate; stipules setaceous; leaflets 5 to 7, lanceolate or ovate. Racemes densely flowered; flowers fragrant, red-brown or dull purple; standard broad, hooded, keel and wing petals reddish-brown. Legumes compressed, 6-12 cm long. An important food crop of the Amerindians, some authorities suggest that this was the 'potato' that Sir Walter Raleigh brought to England. It was vitally important to the Pilgrim Fathers during their first hard winter in New England. The tubers have a sweet and agreeable flavor. Although they were grown in France in the 19th century as a crop plant, their use as a garden vegetable is limited since it may take 2-3 years before the tubers reach edible size, and the plant can be invasive once established. Its natural habitat is alluvial woodlands, low meadows and thicket fringes from Quebec and Minnesota to Florida and Texas. (Duval County; B97-318; James H. Aldrich, University of Florida's North Florida Research and Education Center; 6 August 1997). (Huxley 1992; Long and Lakela 1971; Isely 1990).

Aristolochia fimbriata Cham., Aristolochiaceae, fringed Dutchman's pipe: Stems climbing or prostrate to 2 m long. Leaves suborbicular, cordate to reniform, to 9 cm across. Flowers lack petals, but have a strongly curved ascending tubular calyx; tube green; limb erect, 2.5 cm across, ciliate with long hairs, exterior green-brown, interior purple-brown veined yellow. The flower forms an intricate insect trap for pollination. The "slide zone" on the limb and retrorse hairs in the tube guide flies (attracted by the carrion-like scent) to the stigmas, where pollination occurs. Trapped insects are allowed to escape when the hairs wither after pollination. Native of Argentina, Paraguay, and southern Brazil. (Orange County; B97-229; Anthony N. Capitano; 7 July 1997). (Bailey 1976; Huxley 1992; Zomlefer 1994).

Asclepias lanceolata Walter, Asclepiadaceae, few-flowered milkweed: Perennial herb with milky sap, stems slender to 1 m tall or more, singular, glabrous, from fusiform tuberous roots. Leaves opposite, distant, narrowly lanceolate or linear, long acuminate and separated by internodes 1-2 dm long. Umbels terminal, extending far above the nearest leaves, one to four, few-flowered (usually 3-8 per umbel); corolla flame red-orange, drying reddish-purple, 9-12 mm long; hoods ovate, 5-6 mm long and lacking a pair of apical lobes; the lateral margin with a small tooth near the middle, horns subulate, somewhat incurved. Follicles erect on deflexed pedicels, narrowly fusiform, 8-10 cm long. Coastal Plain glades and swamps; Florida to Texas and New Jersey. (Jefferson County; B97-288; James H. Aldrich, University of Florida's North Florida Research and Education Center; 8 August 1997). (Long and Lakela 1971; Godfrey and Wooten 1981).

Calliandra haematocephala Hassk., Leguminosae, red powderpuff: Shrub or small tree to 6 m tall, usually shorter in cultivation. Branches divaricate, terete, somewhat gray and pubescent; young shoots glabrous or softly brown-hirsute. Leaves bipinnate to 45 cm long; pinnae to 20 cm long; leaflets to 8 cm long, in 5-10 pairs, lanceolate-falcate to semi-elliptic, apex blunt, mucronate, base subcordate to rounded, lustrous deep green above, somewhat paler beneath with some pubescence on veins; petioles 10-25 mm long, downy; stipules furrowed. Flowers in heads 20-70 mm in diameter, on downy peduncles 10-35 mm long; calyx 2.5-4 mm long, campanulate; corolla tube 3.5-5 mm long, red tinted, infundibuliform, lobes ca. 3 mm long, 5 in number, green to creamy white; stamens up to 25, 30 mm long, white at base, vivid red toward apex. Legume 6-10 cm long, and 1.5 cm wide, narrowly lanceolate, glabrous. Suited to drier conditions in subtropical and tropical gardens. Valued for its fine foliage, attractive spreading habit and beautiful inflorescences. Native of Bolivia. (Pinellas County; B97-333; M. 'Janie' Echols; 14 August 1997). (Bailey 1976; Huxley 1992).

Chamaecrista nictitans (L.) Moench ssp. nictitans var. aspera (Muhl. ex Ell.) Irwin & Barneby, Leguminosae, partridge pea, or wild sensitive plant: Annual herb becoming woody at base, to about 5 dm tall. Stem (and leaf rachis) long-pilose with spreading yellowish hairs and short curved hairs; branches erect or prostrate. Leaves alternate, evenly pinnate; petioles villous, mostly shorter than the stipules, bearing a solitary cylindric to clavate gland. [The more wide distributed var. nictitans has a stalked cupuliform petiolar gland and fewer, shorter hairs on the petiole.) Leaflets in 6-25 pairs, linear, inequilateral, aristate, 6-12 mm long and about 1.5 mm broad, without or with very short marginal cilia; stipules linear-lanceolate, 4-10 mm long, persistent. Pedicels solitary, to about 5 mm long. Flowers less than 1.5 cm across; sepals lanceolate, loosely villous, 4.5-5 mm long; petals yellow, four are shorter than calyx, but one is 6-8 mm long. Pod linear, 1.5-4 cm long, 3.5-4.5 mm broad, brushlike with white hairs when young, spreading hirsute in age. The name nictitans means "winking" and refers to the sensitive leaves which fold when touched. Synonyms include Cassia nictitans L. var. aspera (Elliott) Torr. & A. Gray and Cassia aspera Muhl.. Coastal Plain of Florida, Georgia and South Carolina; the West Indies, and Honduras. (Suwannee County; B97-305; Virginia Johns, homeowner; 13 August 1997). (Correll and Correll 1982; Long and Lakela 1971; Isely 1990).

Clematis virginiana L., Ranunculaceae, virgin's-bower, devil's darning needle, woodbine: Sprawling or climbing vine, stems pubescent to glabrate, the woody portion to ca. 1 cm diameter. Leaves pinnately compound, petioles to 10 cm long; leaflets 3, membranous, glabrate, ovate, 2-10 cm long, 1-6 cm wide, acuminate, coarsely serrate to lobed, base truncate to cordate; distinctly petiolulate. Inflorescence axillary, cymose; peduncles 2-8 cm long. No petals. Sepals whitish, spreading, obovate, sericeous, 6-10 mm long; stamens glabrous, anthers 0.5-1 mm long. Achenes derived from a single flower and in a "spidery" cluster, each obovoid, pubescent, 3-4.5 mm long, 1.5-2 mm broad; persistent styles 1-3 cm long, plumose. River banks, flood plain woodlands and their clearings, adjacent richly wooded slopes, thickets. Nova Scotia and east Quebec to Manitoba, generally southward to central peninsular Florida, Florida Panhandle, and Louisiana. (Columbia County; B97-269; Hubert W. Collins, Jr., retired DPI employee; 5 August 1997). (Godfrey 1988; Radford et al. 1968).

Ficus aspera G. Forst. 'Parcellii', Moraceae, clown fig: Deciduous or evergreen tree to 20 m tall. Twigs white-villous, to 3 cm in diameter. Leaves marbled, speckled or dotted ivory white on dark green [these variegations present in the cultivar ], distichous, rather coarsely dentate to crenate or entire, slightly rough to the touch above, hairy beneath, to 32 cm long and 15.5 cm broad, thin, strongly asymmetric, ovate to oblong-ovate to elliptic, obtusely subacuminate, base very oblique; venation palmipinnate, reticulation coarse, basal veins 2, lateral veins prominent, distinctly raised beneath, with 6-7 pairs; petiole to 2 cm long. Sapling leaves pinnately dentate to pinnately lobed, acuminate tip to 4 cm. Figs axillary, usually rami- or cauliflorous and on warty tubercles, spherical, stalked, pubescent, to 25 mm in diameter, yellow to orange, ripening red ('Parcellii' has pink to purple fruits). Native to South Pacific Islands. (Hillsborough County; B97-232; Christine M. Murphy; 8 July 1997). (Bailey 1976; Huxley 1992).

Ipomoea macrorhiza Michaux., Convolvulaceae, largeroot morning glory: Pubescent or tomentose, trailing perennial. Leaves tomentose beneath, entire or weakly 3-lobed, ovate or triangular, 5-15 cm long or wide. Peduncles 1-flowered, flowers nocturnal; pedicel puberulent, stout; sepals coriaceous, densely sericeous-pubescent, lobes widely oblong-elliptic, 16-18 mm long; corolla 5-8 cm long or broad, campanulate, white in bud, limb whitish when first opening fading to rose-purple with age, throat rose-purple; anthers 8 mm long, stamens and stigma included. Capsule ovoid, ca. 1.5 cm long, 1 cm broad; seeds villous. Sandy clearings, beaches, and middens; Carolinas, south to Florida, and west to Mississippi, possibly introduced. (Duval County; B97-294; Flewellyn W. Podris; 6 August 1997). (Radford et al. 1968; Taylor 1992).

Passiflora subpeltata Ortega, Passifloraceae, granadina: Stems vining, cylindric, striate, glabrous. Leaves to 9 cm long and 12 cm broad, trilobed, lobes oblong, apex rounded or obtuse, base often subpeltate or subcordate, glabrous; stipules to 4 cm long and 2 cm broad, oblong, mucronate; petioles to 6 cm long, slender, 2-4 glandular. Flowers to 5 cm in diameter; pedicels to 6 cm long; calyx glabrous, sepals to 1 cm in diameter, green beneath, green-white above, oblong, obtuse; petals white, linear-oblong; corona filaments 5-seriate, white. Fruit to 4 cm in diameter, ovoid or subglobose, glabrous, somewhat green; seeds 5 mm long and 3 mm wide, obovate, fine-reticulate. From central Mexico through Central America to Colombia, and Venezuela. (Orange County; B97-299; Anthony N. Capitano; 10 August 1997). (Huxley 1992).

Zigadenus glaberrimus Michaux, Liliaceae, sandbog death-camas: Plant coarse, rhizomatous, clumped. Rhizomes coated with fibers from old leaf bases. Stems 5-8 dm tall, obscurely 3-angled, leafy, the leaves gradually reduced upward. Leaves keeled on the back, 1.5-4 dm long, 0.5-2 cm wide, acute. Inflorescence pyramidal in outline, a panicle of racemes, 1.5-4 dm long, racemes ascending, flowering portions 4-15 cm long, the central sometimes slightly longer; bracts subtending pedicels 4-10 mm long, obtuse to caudate; pedicels 0.4-1.5 cm long. Perianth segments lanceolate to elliptic-lanceolate, 1-1.6 cm long, 3-5 mm wide, acute to acuminate; sepals clawed or clawless; petals distinctly clawed; petal glands very prominent (even when dry) as two distinct spots on upper surface near the base. Capsule ovate, 10-13 mm long. Seeds 3-5 mm long. This is our only Zigadenus species with rhizomes. Common in bogs and savannahs; Carolinas, Georgia, Florida, Alabama, and Mississippi. The species has many poisonous alkaloids and has caused poisoning of people and livestock. (Jefferson County; B97-282; James H. Aldrich, University of Florida's North Florida Research and Education Center; 4 August 1997). (Radford et al. 1968; Godfrey and Wooten 1979; Perkins and Payne 1978).

GLOSSARY: aristate; with an arista, a short bristly awn: cauliflorous; flowering on the trunk or on specialized spurs from it or (ramiflorous) from the larger branches; distichous; in two vertical ranks, producing leaves or flowers in two opposite rows; infundibuliform; funnel-shaped; stipellate; bearing stipels (the stipule of a leaflet).

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.
  • Godfrey, R. K. 1988. Trees, shrubs, and woody vines of northern Florida and adjacent Georgia and Alabama. The University of Georgia Press, Athens and London. 734 p.
  • Godfrey, R. K. and J. W. Wooten. 1979. Aquatic and wetland plants of southeastern United States. Monocotyledons. The University of Georgia Press, Athens. 712 p.
  • Huxley, A. J. (ed.) 1992. New Royal Horticultural Society dictionary of gardening. 4 vols. Macmillan Press, London. 3,240 p.
  • Isely, D. 1990. Vascular flora of the southeastern United States, Volume 3, part 2, Leguminosae (Fabaceae). The University of North Carolina Press, Chapel Hill and London. 258 p.
  • Long, R. W. and O. Lakela. 1971. A flora of tropical Florida. University of Miami Press, Coral Gables. 962 p.
  • Perkins, K. D. and W.W. Payne. 1978. Guide to the poisonous and irritant plants of Florida. University of Florida, Institute of Food and Agricultural Sciences, Gainesville, FL. Circular 441. 91 p.
  • Radford, A. E., H. E. Ahles and C. R. Bell. 1968. Manual of the vascular flora of the Carolinas. The University of North Carolina Press, Chapel Hill. 1,183 p.
  • Taylor, W. K. 1992. The guide to Florida wildflowers. Taylor Publishing Company, Dallas, TX. 320 p.
  • Zomlefer, W. B. 1994. Guide to flowering plant families. The University of North Carolina Press, Chapel Hill, NC. 430 p.

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

For the month of July, there were 1,233 samples consisting of 8,691+ specimens. In August, there were 800 samples consisting of 3,914+ specimens. There were fewer samples than usual this month due to the current emergency programs for medflies and citrus canker. Some of the samples processed are listed below:

ORNAMENTALS, WOODY PLANTS AND PALMS: Phoenix dactylifera (date palm)-- Cerataphis brasiliensis (Hempel), palm aphid: A severe infestation was found on a plant at University of Florida's Ft. Lauderdale Research and Education Center (Broward County; E97-2596; Rita J. Carpenter; 19 June 1997). NEW DPI HOST RECORD.

Washingtonia robusta (Washington palm)-- Palmicultor sp., a mealybug: A slight infestation was found at a business in South Florida (Broward County; E97-2152; William A. 'Bill' Thiel; 22 April 1997). This is the third find in Florida for this pest (Dr. Avas B. Hamon).

ORNAMENTALS, FOLIAGE PLANTS: Cycas revoluta (king sago)-- Aulacaspis yasumatsui Takagi, aulacaspis cycad scale: A severe infestation was found at a nursery in Hallandale (Broward County; E97-2910; Maria S. Quintanilla; 11 July 1997). NEW DPI COUNTY RECORD.

Gramineae species (a bamboo)-- Antonina pretiosa Ferris, noxious bamboo mealybug: A severe infestation was found in Orlando (Orange County; E97-3259; Furman Miles, homeowner; 5 August 1997).

ORNAMENTALS, FLOWERING PLANTS: Dendrobium sp. (an orchid)-- Planococcus citri (Risso), citrus mealybug: A moderate infestation was found on all ten plants at a nursery in Merritt Island (Brevard County; E97-2748; Karen L. Garrett-Kraus; 26 June 1997).

Plumeria sp. (a frangipani)-- Aleurodicus dugesii Cockerell, giant whitefly: A slight infestation was found on one of two plants at DPI Protocol headquarters in Fort Pierce (St. Lucie County; E97-2899; Kenneth L. Hibbard and Calie C. Jenkins; 9 July 1997). NEW DPI HOST RECORD.

Stephanotis floribunda (Madagascar jasmine)-- Planococcus citri (Risso), citrus mealybug: A severe infestation was found on a plant at a nursery in Merritt Island (Brevard County; E97-2747; Karen L. Garrett-Kraus; 26 June 1997).

FOREST AND SHADE TREES: Celtis laevigata (hackberry, a native species)-- Tetragonocephala flava Crawford, a nestmaking psyllid: An infestation of this newly introduced Mexican psyllid was found in Mayport

Park, Jacksonville (Duval County; E97-3281-002; Flewellyn W. Podris; 13 August 1997). NEW DPI COUNTY RECORD. This psyllid may be recognized by its oyster-shell appearing lerps (=nests) on undersides of leaves at the vein axils (Dr. Susan E. Halbert).

--Shivaphis celti Das, a hackberry woolly aphid: an infestation was found in Mayport Park, Jacksonville (Duval County; E97-3281-003; Flewellyn W. Podris; 13 August 1997). NEW TO THE WESTERN HEMISPHERE. This species is restricted to Celtis and can be recognized by the fuzzy wax secretions (Dr. Susan E. Halbert).

-- an infestation of the two insects above was found at a nursery in Lake Jem (Lake County; E97-3438; Christine 'Christy' M. Murphy; 28 August 1997). NEW DPI COUNTY RECORDS.

Pinus sp. (pine)-- Stephanopachys nr. substriatus (Paykull), a bostrichid beetle: A beetle was found boring in pine bark substrate material for bromeliads at a convenience store in Yeehaw Junction (Osceola County; E97-3294; Kenneth L. Hibbard; 14 August 1997). Apparently, the substrate was from Arizona or California. The beetle is not established in Florida (Dr. Michael C. Thomas).

Platanus occidentalis (sycamore, a native species)-- Erythroneura (Maculata) delongi Knull & Auten, a leafhopper: A moderate infestation involved 15 or 25 plants at a nursery in Jacksonville (Duval County; E97-3090; Flewellyn W. Podris; 27 July 1997). NEW DPI STATE RECORD.

These leafhoppers caused hopper burn (dry necrotic blotches). Dr. Paul H. Freytag, professor emeritus at University of Kentucky, states that this species will not be a problem since parasites probably will control the population in a year or two.

FOOD OR CROP PLANTS: Lycopersicon esculentum (tomato)-- Aleurodicus dugesii Cockerell, giant whitefly: A slight infestation was found at a farm in Fort Pierce (St. Lucie County; E97-3019; Paul Driscoll, grower; 22 July 1997). NEW DPI HOST RECORD.

CITRUS: Citrus aurantium (sour orange)-- Melormenis basalis Walker, a flatid planthopper: A moderate infestation was found on one of five plants at a nursery in Miami (Dade County; E97-2181; James 'Jim' R. Martin; 21 May 1997). NEW CONTINENTAL USA RECORD.

This planthopper is known from South America, the Virgin Islands and Hawaii. The species probably will thrive in Florida, but it is not likely to become a serious pest. It is not a known vector of plant pathogens (Dr. Susan E. Halbert and Dr. Lois B. O'Brien, Florida A&M University, Tallahassee).

WEEDS AND GRASSES: Ipomoea aquatica (Chinese water-spinach)-- Murgantia histrionica (Hahn), harlequin bug: A moderate infestation was found at an Asian market in Miami (Dade County; E97-2761; Larry W. Smith; 16 June 1997). This is a prohibited plant (Florida DEP Rule Chapter 62C-52).

NATIVE OR NATURALIZED PLANTS: Baptisia lactea (white wild indigo, synonym= B. alba)-- Uresiphita reversalis (Guenée), a pyralid moth: A severe infestation was found at a nursery in Melrose (Alachua County; E97-3285; Maria E. Peacock and Dr. Nancy C. Coile; 15 August 1997). NEW DPI HOST RECORD.

Erythrina herbacea (coral bean)-- Agathodes designalis Guenée, a pyralid moth: A severe infestation 70% of 400 plants was found at a nursery in Melrose (Alachua County; E97-3284; Maria E. Peacock and Dr. Nancy C. Coile; 15 August 1997).

Uniola paniculata (sea-oats)-- Blissus arenarius maritimus Leonard, a sea-oat bug: A moderate infestation of all plants (thousands) was found at Floridana Beach (Brevard County; E97-2364; David H. Faneuf; 3 June 1997).

The bug apparently is restricted to sea -oats (Dr. Susan E. Halbert). Chapter 370.041 is a miscellaneous plant law which protects sea-oats and sea-grapes on Florida beaches (Dr. Nancy C. Coile).

Zanthoxylum clava-herculis (Hercules' club)-- Coccus longulus (Douglas), long brown scale: A moderate infestation was found at a residence in Vero Beach (Indian River County; E97-2975; Kenneth L. Hibbard; 15 July 1997). NEW DPI HOST RECORD.

-- Toxoptera citricida (Kirkaldy), brown citrus aphid: A moderate infestation was found at a residence in Vero Beach (Indian River County; E97-2964; Kenneth L. Hibbard; 15 July 1997). NEW DPI HOST RECORD.

BENEFICIAL INSECTS: Toxoptera citricida (brown citrus aphid)-- Leucopis sp., a chamaemyiid fly: An adult was reared from a colony of brown citrus aphids on grapefruit found in Port St. Lucie (St. Lucie County; E97-2882; Robert S. Kuehn, Caribbean Fruit Fly Certification; 25 June 1997). NEW DPI PREDATOR RECORD.

FEDERAL/STATE PLANT PROTECTION AND QUARANTINE PROGRAMS: Ceratitis capitata (Wiedemann), Mediterranean fruit fly (medfly): The eradication program against the medfly continues with considerable success. A regimen of up to eight aerial bait sprays was completed in appropriate sections of Tampa by late July. At this time the local population of wild flies was deemed sufficiently suppressed (if not already eradicated) to warrant implementation of the sterile insect technique (SIT). On 25 July 1997, SIT was put into effect with the initial release of tens of millions of flies that had been mass-reared and sterilized by irradiation in Guatemala. The first release corridor included Town 'N' Country, Ybor City and MacDill Air Force Base. Beginning 1 August 1997, the second release corridor included Lutz and Carrollwood. On 8 August 1997, releases were made in the third corridor comprising Temple Terrace and East Tampa. Since 19 July 1997, no wild medflies have been detected in any part of Hillsborough County. A total of two medflies were detected in Sarasota (Sarasota County; E97-2941; L.D. Cunningham, USDA, APHIS/PPQ, Palmetto; 25 June 1997 and Sarasota County; E97-3009; Ian M. Rashid; 18 July 1997). These are the last flies detected in Plymouth (Orange County; E97-3119; Charles A. 'Zo' Cooper; 23 July 1997). A new focus of infestation was discovered in Highland City (Polk County; E97-3170; Daniel Nieto; 1 August 1997), and aerial bait sprays were quickly inaugurated. A combined program of SIT, aerial bait spray, and intense detection trapping will continue for three life cycles after the last medfly is detected (Dr. Gary J. Steck).

INSECT DETECTION: Lyctus africanus Lesne, a lyctid beetle: A localized but severe infestation of this exotic species was found in stored West African tropical hardwood moldings in Fort Lauderdale (Broward County; E97-2878; Eugene Lopez, private citizen; 3 July 1997). This species could reinfest other tropical hardwoods in storage (Dr. Michael C. Thomas). A severe infestation was found in a dried woven basket evidently imported from China in Ocala (Marion County; E97-2637; Floyd J. McHenry; 23 June 1997).

Pachyneuron aphidis (Bouche), a hyper parasitic wasp: An adult emerged from a parasitized brown citrus aphid collected in a grove in Ft. Pierce (St. Lucie County; E97-2848; Edward E. Killer, University of Florida's Indian River Research and Extension Center, Ft. Pierce; 19 June 1997).

This is the first DPI record for this hyper parasite emerging from a parasitized brown citrus aphid in Florida (Dr. Gregory A. Evans, post-doctoral research fellow, University of Florida and OPS with Division of Plant Industry).

Toxoptera citricida (Kirkaldy), brown citrus aphid: The suction trap at Immokalee (Collier County) collected 36 and 34 brown citrus aphids, respectively; for weeks ending 27 June 1997 (E97-2736) and 3 July 1997 (E97-2847).

These numbers are higher than previously observed for brown citrus aphids in Florida. It is not known whether the increase in flight activity will result in greater spread of citrus tristeza virus (Dr. Susan E. Halbert).

Xyloborus sp., a scolytid beetle: A single specimen of this exotic beetle was collected in a Theyson trap baited with pheropax in Fernandina Beach (Nassau County; E97-1499; John F. Gilmore, United States Department of Agriculture/Animal and Plant Health Inspection Service/Plant Protection and Quarantine, Jacksonville; 11 April 1997).

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NEMATOLOGY SECTION
Compiled by Robert P. Esser, Ph.D.

A total of 2,497 samples were processed in July and August. Details are shown below:

Certification and Regulatory Samples:

Multistate Certification for National and International Export 1,432
California Certification 675
Premovement 8
Site or Pit Approval 33
Burrowing Nematode 96

Other Samples:

Identification (Invertebrate) 5
Florida Interceptions 2
Plant Problem 40
Intrastate Survey, Random 206

Detections of Special Interest : Pyrrhopappus carolinianus (false dandelion) -- Belonolaimus longicaudatus Rau 1958, sting nematode; Criconemoides citri Steiner 1949, ring nematode; C. curvatum, Raski 1952, ring nematode; C. mutabile Taylor 1936, ring nematode; Helicotylenchus pseudorobustus (Steiner 1914) Golden, 1956, spiral nematode; Trichodorus christiei Allen 1958, stubby-root nematode; Xiphinema vulgare Tarjan 1964, dagger nematode and Peltamigratus christiei (Golden & Taylor 1956) Sher 1954 were detected for the first time associated with this plant at Gainesville (Alachua County; N97-00611; Dr. Robert P. Esser; 13 May 1997).

Solanum carolinense (horse-nettle) -- Aphelenchoides sp., foliar nematode; Criconemoides complexus Jairajpuri 1963, ring nematode; C. dihystera (Cobb 1893) Sher 1961, ring nematode; Helicotylenchus pseudorobustus (Steiner 1914) Golden 1956, spiral nematode; Trichodorus christiei Allen 1957, stubby root nematode; Xiphinema vulgare Tarjan 1964, dagger nematode, were detected for the first time associated with this plant at Gainesville (Alachua County; N96-00150; Dr. Robert P. Esser; 16 June 1997).

COLLECTORS SUBMITTING FIVE OR MORE SAMPLES THAT WERE PROCESSED FOR NEMATOLOGICAL ANALYSIS DURING JULY AND AUGUST 1997:

Branch, Kenneth D. 15
Dees, Carrie S. 30
Fuller, Samuel A. 74
Harris, Jessie M. 30
LeBoutillier, Karen W. 201
Qiao, Ping . 493
Robinson, William L. "Robbie" 215
Salisbury, Thomas L. 144

PLANT PATHOLOGY SECTION
Compiled by John W. Miller, Ph.D.

For this period, the Plant Pathology Section received and processed 1,398 specimens. These included 336 pathology, 3 miscellaneous, 11 soil, and 990 suspect canker samples as of August 22, 1997 in Dade County, and 58 suspect canker samples from Manatee County.

ORNAMENTALS, WOODY PLANTS AND PALMS: Pyrus calleryana 'Bradford' (callery pear cultivar)-- Seiridium sp., stem canker: Collected at a nursery in Jacksonville (Duval County; P97-1997; Flewellyn W. Podris; 27 July 1997). NEW HOST RECORD.

Washingtonia robusta (Washington palm)-- Chalara paradoxa and Verticillium sp., wilt: Collected in Maitland (Orange County; P97-2009; Larry Smith, private consultant; 31 July 1997). NEW HOST RECORD.

FOREST AND SHADE TREES: Acer saccharum ssp. floridanum (synonym: A. barbatum) (Florida maple, or southern sugar maple, a native species)-- Elsinoe sp., scab: Collected at a nursery in Gainesville (Alachua County; P97-1976; unknown nurseryman; 28 July 1997). NEW HOST RECORD.

Populus deltoides (eastern cottonwood, a native species)-- Elsinoe sp., scab: Collected at the NW area of Deer Run in Gainesville (Alachua County; P97-1953; Dr. Timothy S. Schubert; 17 July 1997). NEW STATE RECORD.

-- Phoma sp., leaf spot: Collected at a nursery in Jacksonville ( Duval County; P97-1998; Flewellyn W. Podris; 28 July 1997). NEW HOST RECORD.

FOOD OR CROP PLANTS: Capsicum chinense var. rocotillo (rocotillo)-- pepper mild mottle tobamovirus: Collected at a nursery in Archer (Alachua County; P97-1793; Bob Grant, nurseryman; 19 June 1997). NEW HOST RECORD.

Lycopersicon esculentum (tomato)-- tomato yellow leaf curl virus: Collected from field tomatoes in Naples (Collier County; diagnosis made by Dr. Jane E. Polston, University of Florida's Gulf Coast Research and Education Center; 19 July 1997). NEW STATE RECORD.

WEEDS AND GRASSES: Cyperus croceus (synonym: C. globulosus) (globe sedge, a native)-- Fusarium semitectum, leaf spot, stem rot: Collected at a grove in Palmetto (Manatee County; P97-2076; Dr. Lawrence G. Brown; 4 August 1997). NEW HOST RECORD.

NATIVE OR NATURALIZED: Ludwigia peruviana (Peruvian primrose-willow, naturalized exotic)-- Pseudocercospora sp., leaf spot: Collected at the South Florida Community College in Avon Park (Highlands County; P97-2063; James E. Bennett; 6 August 1997). NEW HOST RECORD.

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