TRI-OLOGY, Vol. 34, No. 4
Nancy C. Coile, Ph. D., Managing Editor
July-August 1995
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 three seed collections (for a total of 1,451 seed samples) and 58 mounted specimens (total of 7,232). Sharon B. Garrett (PE&C) submitted three specimens; Maria E. Peacock (R1,A1), Flewellyn W. Podris (R1,A1), Stephen P. Beidler (R1,A2), Barbara J. Wilder (R2,A1), Tom L. Phillips (R2,A1), James E. Lindsay (R2,A2), Liza Lanza (R2,A3), Lloyd `Wayne' Clifton (R2,A3), Kay E. Dady (R2,A4), Gwen Myres (R3,A3) and Lynn D. Howerton (R3,A4) each submitted one specimen new to the herbarium. For this period, 1,081 specimens were submitted for identification and/or name verification. Some of the samples are described below:
Abutilon theophrasti Medik., Malvaceae, velvet-leaf, butter-print: Annual herb, to about 1 m tall, velvety and cinereous* throughout with very short and fine stellate hairs. Leaves alternate, orbiculate-ovate, about 15 cm long, abruptly acuminate at apex, cordate at base, margins entire to obscurely crenulate or serrulate. Flowers solitary or two to several together on stout axillary peduncles 1-5 cm long; calyx deeply 5-parted, lobes ovate, 6-10 mm long; petals yellow, obovate, 6-9 mm long, truncate to shallowly emarginate at apex. Fruit 2-3 cm across; carpels villous, 10 or more, bivalved, about 1.5 cm long, with rather abrupt divergent awns about 5 mm long; used in past to mark an attractive imprint on homemade butter. Seeds reniform, about 3 mm long. In waste places and cultivated areas. Native of Eurasia; now widespread throughout much of North America in weedy sites. Dixie County (B95-650, M.J. Echols). (Correll and Correll 1982).
Araucaria araucana (Mol.) C. Koch, Araucariaceae, monkey-puzzle tree, Chile pine: Tree to 30 m tall. Crown ovoid-conic when young, becoming domed. Branching generally in fives, horizontal at first with uppermost branches ascending, lower pendulous, tips finally becoming much deflexed; branchlets paired, opposite, curving upwards when young, to 2 m long. Leaves stiff, leathery, triangular-ovate to lanceolate, pungent, spirally arranged, 3-5 cm long, and 2-2.5 cm wide on main stem, only 2.5 cm long on weak branchlets, concave, bright green, persistent for 1-12 years. Male cones solitary or clustered, ovoid to cylindrical, erect, 8-15 cm long, and 5 cm in diameter with lanceolate, slender scales. Female cones terminal, globose, 10-18 cm in diameter. Seeds 3-4.5 cm long, purple, ripening red-brown, oval to oblong, with a long, decurved yellow bract appendage. Makes a unique `reptilian' tree which does not mix well with other species, but creates an obvious focal point. Tolerates temperatures of -15C (5F), occasionally -22C (-8F). From central Chile to northern Patagonia. Pinellas County (B95-580, R.S. Weston). (Huxley 1992).
Cardiospermum microcarpum Kunth, Sapindaceae, balloon vine, heart seed: Vine climbing by tendrils, to about 3 m long, branched, the slender stems grooved. Leaves alternate, petioles to about 2 cm long, blades thin, biternately compound, 7-15 cm long and about as broad; leaflets ovate to lanceolate, to 3.5 cm long and 2 cm broad, coarsely lobed, incised or cleft. Peduncles slender, about as long as the leaves, supporting several-flowered corymbs. Flowers white, about 4 mm wide, the upper petals three times as long as the sepals. Capsule subglobose-oblate, strongly 3-angled or 3-lobed, about 1 cm long, pubescent, veiny. Seeds about 3 mm in diameter, with a 2-lobed aril*. Grown in tropical and subtropicals regions for the interesting, bladder-like fruits, and soft ferny foliage. Rather generally distributed in the tropics. Dade County (B95-652, G. Myres). (Correll and Correll 1982; Huxley 1992).
Hydrolea corymbosa Macbr. ex Ell., Hydrophyllaceae, sky flower: Perennial herb, usually unarmed, to 60 cm tall, stems glabrous. Leaves alternate, elliptic to elliptic-lanceolate, 3-6 cm long, apex acute, occasional plant with spine in leaf axils. Flowers in terminal cymes, 5-merous; calyx lobes narrow, unequal, glandular-ciliate along the margins, shorter than the corolla; corolla rotate-campanulate, deeply lobed, dilated at the base, azure-blue, 10-15 mm long. Capsule 4-5 mm long, enclosed by persistent calyx. Wetlands. Florida and Georgia. Columbia County (B95-638, M.J. Echols, H.W. Collins, J. Miller). (Long and Lakela 1971; Godfrey and Wooten 1981).
Jatropha podagrica Hook, Euphorbiaceae, tartogo, gout plant: Perennial to about 2.5 m tall. Stem smooth in juvenile plant becoming swollen and knobby, with bristled scars. Leaves orbicular-ovate, peltate, long-petioled, to 30 cm wide, deeply 3- to 5-lobed, white beneath. Inflorescence terminal, multibranched, long-peduncled; pedicels red. Flowers orange-red, unisexual; the female flowers usually open and close before the males open. Planted in warm climates. An asset to any collection of succulents. Native to Central America. Volusia County (B95-582, T.L. Wright). (Bailey 1976; Huxley 1992).
Justicia carnea Lindl., Acanthaceae, flamingo flower, Brazilian plume: Evergreen to 2 m tall. Branches few, quadrangulate to striate. Leaves to 25 cm long, ovate-acuminate, velutinous, veins prominent; petiole to 5 cm long. Flowers borne in compact, short terminal panicles; bracts to 2 cm long, oblong, tapered; corolla to 5 cm long, rose-purple or pink, viscid-pubescent. Easy cultivation, an old favorite in warm climate gardens. Native to northern South America. Putnam County (B95-649, G. Langley). (Bailey 1976; Huxley 1992).
Malvaviscus penduliflorus DC., Malvaceae, Turk's-cap: Shrub to 4 m tall, more or less glabrate. Leaves lanceolate to ovate, 6-12 cm long, unlobed or barely lobed, margins coarsely toothed, stellate-pubescent above, soft-downy below. Flowers solitary, never opening fully, bell-shaped, pendant; pedicel 2.5-7 cm long; calyx to 2 cm long; petals 2.5-5 cm long, rich red; stamens conspicuous, protruding from the mouth of the bell. (=Malvaviscus arboreus var. mexicanus). Cultivated in mild climates for its brilliant and richly colored flowers. Native from Mexico to Colombia. Suwannee County (B95-668, M.J. Echols). (Bailey 1976; Huxley 1992).
Selenicereus anthonyanus (Alexander) D. Hunt, Cactaceae, rickrack cactus: Climbing and epiphytic; primary stems clinging by aerial roots, to 2 m long or more, flattened, shallowly lobed; lateral branches to 1 m or more, 2-winged, 7-15 cm wide, broadly and deeply dentate-lobed, the lobes 25-45 mm long and 10-16 mm wide, 4-6 mm thick, tapered and curved, apex obtuse; areoles in the sinuses; spines 3, short. Flowers salverform, 12 cm long and 10-15 cm across, nocturnal, fragrant; pericarps ca. 2 x 2 cm, green, with numerous scales 1-2 mm long and areoles with bristles and pale-brown spines 1-3 mm long; tube cylindric, 3-4.5 cm long, stiff, reddish-purple, with scales 3-6 mm long, the lower areoles with wool and bristles, but the upper naked; outer tepals reddish-purple, inner pale-yellow; style stout, 6 mm in diameter; stigmas 12-14, 16-18 mm long, widely spreading, white. Cultivated as a curiosity for the unusual shape of the stems, and its beautiful flowers. Native to Mexico. Suwannee County (B95-669, M.J. Echols). (Huxley 1992).
Stenocarpus sinuatus Endl., Proteaceae, firewheel tree: Tree to 30 m tall. Leaves 20-45 cm long, glossy, variable, pinnately lobed to obovate, oblanceolate. Flowers bright red, 2.5 cm long, in terminal 12-20 flowered, wheel-like umbels produced in the upper leaf axils; pedicels to 14 mm long; perianth to 38 mm long. Makes an unusual specimen tree. Native to Queensland and New South Wales; Australia. Pinellas County (B95-624, L. Lanza). (Bailey 1976; Huxley 1992).
Vernicia montana Lour., Euphorbiaceae, mu-oil tree: Flat-topped tree to 8 m tall. Leaves ovate to cordate, sometimes 3-5-lobed, to 30 cm long, with 2 stalked glands at base. Flowers white, to 2.5 cm long. Fruit to 4.5 cm in diameter. (=Aleurites montana). The genus grown for the seeds, which yield valuable drying oils, the oil yield by the seeds of this species is of inferior quality. Native to south China and north Burma. Lee County (B95-600, D. Hollis, B. Presnell). (Bailey 1976).
GLOSSARY: aril: an enlarged raphe, an appendage of the seed; cinereous: ashy gray
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. 1290 p.
- Correll, D. S. and H. B. Correll. 1982. Flora of the Bahama Archipelago. J. Cramer, Hirschberg, Germany. 1692 p.
- Godfrey, R.K. and J.W. Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States, Dicotyledons. The University of Georgia Press, Athens. 933 p.
- Huxley, A. J. (ed.) 1992. New Royal Horticultural Society dictionary of gardening. 4 vols. Macmillan Press, London. 3240 p.
- Long, R.W. and Olga Lakela. 1971. A flora of tropical Florida. University of Miami Press. 962 p.
ENTOMOLOGY SECTION
Compiled by Susan E. Halbert, Ph.D.
For the month of July, there were 1,400 samples consisting of 10,916+ specimens. In August, there were 1,671 samples consisting of 17,096+ specimens. Some of the samples processed are listed below:
ORNAMENTALS, WOODY PLANTS AND PALMS: Ardisia crenata (coralberry, Exotic Pest Plant Council list)-- Sassetia coffeae (Walker), hemispherical scale: A severe infestation involved 1% of 10,000 plants in Apopka, Orange County (19 July 1995, L.J. Wilber and D.L.W. Hofmann).
Swietenia mahogoni (West Indies mahogany, Florida Endangered Species)-- Hypsipyla grandella (Zell. ), mahogany shoot borer: Moderate to severe infestations in Fort Lauderdale, Broward County (8 May 1995 and June 1995, F.W. Howard).
ORNAMENTALS, FOLIAGE PLANTS: Acorus gramineus (sweet flag)-- Pseudaulacaspis cockerelli (Cooley), magnolia white scale: A moderate infestation involved about 100 plants in Lake City, Columbia County (17 August 1995, J. Echols, H. Collins and J.W. Miller).
Codieaum variegatum var. pictum (croton)-- Philephedra tuberculosa Nakahara and Gill, a soft scale: About 50% of 200 plants moderately infested in Largo, Pinellas County. Numerous live crawlers were present (11 July 1995, D.M. Mooney).
Hedera helix (English ivy)-- Coccus hesperidum L., brown soft scale: Five percent of 10,000 plants severely infested in Apopka, Orange County (19 July 1995, L.J. Wilber).
Maranta leuconeura var. kerchoviana (prayer plant)-- Phytonemus pallidus (Banks), cyclamen mite: 85% of 500 plants moderately infested in Zellwood, Orange County (7 August 1995, L.J. Wilber).
Tillandsia xerographica (bromeliad)-- Metamasius callizona (Chevrolat), a bromeliad weevil: A slight infestation in Loxahatchee, Palm Beach County (28 June 1995, R. Poe). NEW DPI COUNTY AND HOST RECORDS.
FLOWERING ORNAMENTALS: Alpinia purpurata `Jungle Queen' (pink ginger)-- Ceroplastes rusci (L. ), fig wax scale: An infestation in Naples, Collier County (9 August 1995, M.W. Brodie and R.T. Buchholz). NEW DPI HOST RECORD.
Bouganvillea sp. (Bouganvillea)-- Vittacus bouganvilleae Abou-Awad and El Banhauy, an eriophyid mite: A severe infestation caused heavy damage in Coconut Grove, Dade County (5 April 1995, L. Hammer).
Cananga odorata (Ylang-ylang)-- Aphis gossypii Glover, cotton/melon aphid: A heavy infestation in Florida City, Dade County (13 July 1995, L.W. Howerton). NEW DPI HOST RECORD.
Evolvulus glomeratus (blue daze)-- Asterolecanium sp., a pit scale: Severe infestations in Naples, Collier County (9 August 1995, M.W. Brodie and R.T. Buchholz) and Auburndale, Polk County (11 August 1995, D.R. Robbins). This pit scale can kill this plant, and control is difficult.
Hippeastrum sp. (amaryllis)-- new genus, new species, a baridine beetle: A severe infestation in Orlando, Orange County (8 June 1995, C.L. Craft).
Phalaenopsis sp. (moth orchid)-- Saissetia coffeae (Walker), hemispherical scale: A severe infestation involved about 5,000 plants in Apopka, Orange County (17 July 1995, B.J. Wilder and D.L.W. Hofmann).
Rhododendron sp. (azalea)-- Calopteron sp. , a netwinged beetle: A heavy infestation involved hundreds of plants in Hawthorne, Alachua County (10 July 1995, H. Crowe, nurseryman). These beetles are predaceous and should not damage the plants. There is no information on the biology of these conspicuous larval aggregations.
Rosa sp. (rose)-- Howardia biclavis (Comstock), mining scale: An infestation in Lakeland, Polk County (15 June 1995, D.W. Robbins). NEW DPI HOST RECORD.
FOREST AND SHADE TREES: Magnolia sp. (magnolia)-- Pseudaulacaspis cockerelli (Cooley), magnolia white scale: A severe infestation in Homestead, Dade County (28 July 1995, Y.I. Inguanzo).
Kigelia pinnata (sausage tree)-- Leptoglossus oppositus (Say), a leaf-footed bug: An infestation on fruit in Davie, Broward County (16 August 1995, E.J. Manzo and D.C. Clinton). NEW DPI HOST RECORD.
FOOD OR CROP PLANTS: Annona squamosa (sugar apple)-- Ceroplastes rusci (L.), fig wax scale: A severe infestation in Homestead, Dade County (3 July 1995, L.W. Howerton). NEW DPI HOST RECORD.
Carica papaya (papaya)-- Toxotrypana curvicauda Gerstraecker, papaya fruit fly: A severe infestation on fruit in Winter Haven, Polk County (14 August 1995, J.E. "Pete" Lindsay).
Gossypium hirsutum (cotton)-- Frankliniella sp., a thrips: A severe infestation in Gainesville, Alachua County (7 August 1995, U. Rose).
Litchi chinensis (litchi)-- Andaspis punicae (Lacing), an armored scale: An infestation in Homestead, Dade County (13 April 1995, J.H. Crane). This is the second report of Andaspis punicae in Dade County.
Psidium guajava (guava)-- Planococcus citri (Risso), citrus mealybug: A moderate to severe infestation involved hundreds of plants in Homestead, Dade County (24 August 1995, L.W. Howerton).
CITRUS: Citrus jambhiri `Rough' (rough lemon)-- Deroceras laeve (Muller), marsh slug: A moderate infestation starting at the ends of the rows was found in Gainesville, Alachua County (6 April 1995, S.C. Gillis). Significant damage occurred in 2 days.
NATIVE OR NATURALIZED PLANTS: Alternanthera sp. (alternanthera)-- Pseudococcus sp. a mealybug: A severe infestation on about 100 plants in Fort Lauderdale, Broward County (12 June 1995, F.W. Howard).
Cirsium horridulum (thistle)-- Ceratobarys eulophus (Loew), a chloropid fly: An adult in a sweepnet collection in Arcadia, Desoto County (4 May 1995, M.L. Runnals). NEW DPI COUNTY RECORD.
Elephantopus nudatus (elephant's foot)-- Uroleucon elephantopicola Robinson, an aphid: An infestation in Gainesville, Alachua County (10 July 1995, R.P. Esser). This collection nearly doubles the total number of U. elephantopicola specimens worldwide. NEW STATE RECORD FOR THIS NORTH AMERICAN APHID.
Eryngium yuccifolium (button snakeroot)-- Frankliniella bispinosa (Morgan), a thrips: An infestation in Gainesville, Alachua County (3 July 1995, R.P. Esser). NEW DPI HOST RECORD.
Helianthus floridanus (sunflower)-- Frankliniella bispinosa (Morgan), a thrips: An infestation in Gainesville, Alachua County (14 July 1995, R.P. Esser). NEW DPI HOST RECORD.
Hippomane mancinella (manchineel)-- Philephedra tuberculosa Nakahara and Gill, a soft scale: A moderate infestation in North Key Largo, Monroe County (27 July 1995, L.W. Howerton). NEW DPI HOST RECORD.
Solidago sp. (goldenrod)-- Cachryphora serotinae (Oestlund), an aphid: An infestation in Gainesville, Alachua County (24 July 1995, R.P. Esser). NEW STATE RECORD FOR THIS NORTH AMERICAN APHID GENUS.
Solidago sp. (goldenrod)-- Uroleucon luteolum (Williams), an aphid: An infestation in Gainesville, Alachua County (24 July 1995, R.P. Esser). NEW STATE RECORD FOR THIS NORTH AMERICAN APHID.
Typha sp. (cattail)-- Hyalopterus pruni (Geoffroy), mealy plum aphid: A severe infestation involved about 100 plants in Gainesville, Alachua County (28 June 1995, G.R. Buckingham). NEW DPI HOST RECORD.
OTHER INSECT DETECTION: Wooden bait block with Reticulitermes flavipes (Kollar), eastern subterranean termite-- Trichopsenius depressus (LeConte), a staphylinid beetle: These rare termitophilous beetles found in Immokalee, Collier County (8 August 1995, J. Connor).
INSECTS OF MEDICAL AND VETRINARY IMPORTANCE: Amblyomma americanum (L.), lone star tick: Ticks found biting people in Bushnell, Sumter County (22 June 1995, S.P. Beidler) and Webster, Sumter County (12 July 1995, R. Yoxtheimer). Amblyomma americanum is a possible carrier of Lyme disease.
Latrodectus geometricus (C.L. Koch), brown widow spider: A female collected after biting an adult in Tampa, Hillsborough County (23 June 1995, homeowner). The homeowner had typical symptoms of widow bite, including extreme pain at the site of the bite, intermittent nausea, lightheadedness, fever, chills, and rigidity of the abdomen and lower back. Brown widow spider is an imported species that became established in Dade County, and in 1965 was reported to be common in coastal cities of southeastern Florida as far north as Daytona Beach. Brown widow spider has spread rapidly in recent years (possibly due to a succession of mild winters), and is now known to occur as far north as Jacksonville in the east coast, Alachua County in the middle of the state, and is extremely abundant in the Tampa-St. Petersburg area. Much more of a house spider than other species in the genus, this spider will become locally abundant once it becomes established. Although apparently not as aggressive at defending their webs as black widows, brown widows will bite in self-defense. In this case, the spider was inadvertently pressed against the victim's skin. Brown widows have an hourglass mark on the underside of the abdomen which will distinguish them from other similar spiders that occur in houses. They are usually slightly smaller than black widows. The unique eggsacs are tan, spherical, and covered with small tufts of silk. Other widow species in the state have white, oblate, smooth eggsacs. (G. B. Edwards)
FEDERAL-STATE PLANT QUARANTINE PROGRAMS: Brassica oleracea (kale)-- Helix aspersa Muller, brown garden snail: An infestation in a shipment from California intercepted in Clearwater, Pinellas County (31 July 1995, L. Lanza).
Delphinium grandiflorum (delphinium)-- Helix aspersa Muller, brown garden snail: Infestations in shipments from California intercepted in Tampa, Hillsborough County (9 and 14 August 1995, L.W. Clifton and R.H. Lemstrom).
Limonium latifolium (German statice)-- Helix aspersa Muller, brown garden snail: An infestation in a shipment from California intercepted in Tampa, Hillsborough County (14 August 1995, R.H. Lemstrom and L.W. Clifton).
Limonium sinuatum (statice)-- Helix aspersa Muller, brown garden snail: An infestation in a shipment from California intercepted in Tampa, Hillsborough County (14 August 1995, R.H. Lemstrom and L.W. Clifton).
Lysimachia clethroides (gooseneck)-- Helix aspersa Muller, brown garden snail: An infestation in a shipment from California intercepted in Tampa, Hillsborough County (24 July 1995, L.W. Clifton).
Myrtus communis (myrtle)-- Helix aspersa Muller, brown garden snail: An infestation in a shipment from California intercepted in Pierson, Volusia County (1 August 1995, J.S. Beckwith).
Vaccinium sp. (blueberry)-- Popillia japonica Newman, Japanese beetle: An infestation in a shipment from Michigan intercepted in Cocoa Beach, Brevard County (10 August 1995, B. Saunders, USDA).
Jackson trap-- Bactrocera dorsalis (Hendel), Oriental fruit fly: Single male collected in Clearwater, Pinellas County (14 July 1995, K.A. Macias).
Sticky board trap-- Bactrocera dorsalis (Hendel), Oriental fruit fly: Single male collected in Pinellas Park, Hillsborough County (20 July 1995, G. Simpson).
Helix aspersa Muller, brown garden snail: Sale of pest in Florida prevented (23 June 1995, L.A. Stange).
| Botany Section | Entomology Section | Nematology Section | Plant Pathology Section | Back to Top |
NEMATOLOGY SECTION
Compiled by Robert P. Esser, Ph.D.
A total of 2,340 samples were processed in July and August. Details are shown below:
Certification and Regulatory Samples: Other Samples:
Multistate Certification for National and Identification
International Export . . . . . . . 928 (Invertebrate). . . . . . . . . . . . 9
California Certification. . . . . . . 618 Plant Problem . . . . . . . . . . . . 65
Premovement . . . . . . . . . . . . . 168 Out of State Survey, via
Site or Pit Approval. . . . . . . . . 48 Florida Interceptions . . . . . . 6
Burrowing Nematode. . . . . . . . 206 Intrastate Survey, Random . . . 292
Elephantopus nudatus (an elephant's foot)-- Belonolaimus sp., Criconemoides curvatum Raski 1952, Helicotylenchus sp., Hemicriconemoides minutus Esser 1960, H. wessoni Chitwood & Birchwood 1957, Hoplolaimus sp., Longidorus sp., Meloidodera floridensis Chitwood, Hannom & Esser 1956, Meloidogyne sp., Scutellonema sp., Trichodorus sp. and Xiphinema sp., nematodes: found for the first time with soil associated with this plant. (11 June 1995, R.P. Esser, N95-001180).
Elytraria caroliniensis (Carolina scaly-stem)-- Hemicriconemoides minutus, Hoplolaimus tylenchiformis Daday 1905, Longidorus sp., Meloidogyne sp., Scutellonema sp., Trichodorus sp., Trophonema sp., and Xenocriconemella macrodora (Taylor 1936) de Grisse & Loof 1965, nematodes: found in soil or roots associated with this plant. (28 June 1995, R.P. Esser, N95-01131).
Helianthus hirsutus (rough sunflower)-- Criconemoides curvatum, Helicotylenchus sp., Longidorus sp., Meloidogyne sp., Paratylenchus mimulus Raski 1975, and Trichodorus sp., nematodes: detected for the first time in soil associated with this plant. (20 July 1995, R.P. Esser, N95-01207).
Rhizophora mangle (red mangrove)-- Dolichodorus heterocephalus, an awl nematode: found for the first time in soil associated with this plant. (20 June 1995, M.W. Brodie, N95-01107).
Sida rhombifolia (Indian-hemp)-- Belonolaimus (undescribed species), Criconemoides curvatum, C. xenoplax Raski 1952, Helicotylenchus dihystera (Cobb 1893) Sher 1961, Hemicriconemoides minutus, Longidorus (undescribed species), Meloidogyne sp., Pratylenchus brachyurus (Godfrey 1929) Filipjev, Schuurmans & Stekhoven 1941, Trichodorus sp., Trophotylenchulus floridensis Raski 1957, Gracilacus sp., Nothocriconema permistum (Raski & Golden 1966) de Grisse 1967, Xenocriconemella macrodora, Aglenchus sp., Aphelenchoides, Acrobeles, Bunonema, Carcharolaimus, Diphtherophora sp., Ephyadophora sp., Mylenchulus sp., Prismatolaimus sp., and Triplonchium sp., nematodes: found in soil associated with this plant. (13 July 1995, R.P. Esser, N95-01190).
COLLECTORS SUBMITTING FIVE OR MORE SAMPLES THAT WERE PROCESSED FOR NEMATOLOGICAL ANALYSIS DURING JULY AND AUGUST 1995:
Bohnstedt, S.A. 5 Lawrence, D.W. 93
Brown, G. 6 LeBoutillier, K.W. 66
Collins, H.W. 15 Nelson, C.R. 61
Dones, R.A. 131 Peacock, M.E. 17
Fuller, S.A. 32 Robinson, W.L. 178
Gillis, H.L. 8 Salisbury, T.L 276
Harris, J.M. 100 Smith, W.W. 74
Inguanzo, Y.I. 74 von Wald, H. 84
Johnson, C.S. 111
PLANT PATHOLOGY SECTION
Compiled by John W. Miller, Ph.D.
For this period, the Plant Pathology Section received and processed 821 specimens. These included 764 pathology, 39 miscellaneous, and 18 soil samples. Some of the samples are listed below.
ORNAMENTALS, WOODY PLANTS AND PALMS: Abutilon sp. (flowering-maple)-- Pseudomonas cichorii (Swingle) Stapp, a leaf spot: Collected at a nursery in Alachua County, (00 July 95, Harrison, P95-2862). NEW HOST RECORD.
X Cupressocyparis leylandii (Leyland cypress)-- Kabatina juniperi R. Schneider & Arx, stem dieback, blight: Collected at a nursery in Alachua County, (10 August 95, M. Peacock, P95-3015). NEW HOST RECORD.
Lagerstroemia indica (crape myrtle)-- Xanthomonas sp., a leaf spot: Collected at a nursery in Marion County, (18 August 95, F. McHenry, P95-3250). NEW HOST RECORD.
Santolina sp. (santolina)-- Phytophthora nicotianae Breda de Haan, a root rot: Collected at a nursery in Alachua County, (12 July 95, M. Bailey, P95-2694). NEW HOST RECORD.
Tabebuia sp. (tabebuia)-- Xanthomonas sp., a leaf spot: Collected at a nursery in Polk County, (05 July 95, D. Robbins, P95-2642). NEW HOST RECORD.
ORNAMENTALS, FOLIAGE PLANTS: Asplenium scolopendrium (=Phyllitis scolopendrium, hart's-tongue fern)-- Myrothecium roridum Tode:Fr., leaf spot: Collected at a nursery in Alachua County, (22 August 95, NSY, P95-3226). NEW HOST RECORD.
Cyperus involucratus (= C. alternifolius, umbrella plant)-- Apiocarpella sp., leaf spot: Collected at a nursery in Palm Beach County, (31 May 95, R. Mescher, P95-2222).
Microsorium punctatum (fishtail fern)-- Pythium splendens H. Braun, root rot, Phoma sp., & Colletotrichum sp., leaf spot: Collected at a nursery in Hamilton County, (28 June 95, J. Echols, P95-2587). NEW HOST RECORDS.
Pilea microphylla (artillery plant, a native species)-- Fusarium oxysporum Schlechtend.:Fr. & Fusarium semitectum Berk. & Ravenel, fungi: Collected at a nursery in Orange County, (23 August 95, B. Wilder, P95-3256). NEW HOST RECORD.
ORNAMENTALS, FLOWERING PLANTS: Gymnocoronis spilanthoides (gymnocoronis, an aquatic)-- Rhizoctonia sp., stem, crown rot: Collected at a nursery in Palm Beach County, (05 July 95, E. Tannehill, P95-2675). NEW HOST RECORD.
Passiflora sp. (passion flower)-- Xanthomonas sp., & Pseudomonas cichorii (Swingle) Stapp. leaf spots: Collected at a nursery in Putnam County, (21 August 95, M. Peacock, G. Langley, P95-3178). NEW HOST RECORDS.
Veronica spicata (rose veronica)-- Phytophthora sp., Rhizoctonia sp., & Fusarium sp., root, crown rot: Collected at a nursery in Alachua County, (12 July 95, W. Bailey, P95-2693). NEW HOST RECORDS.
FOREST AND SHADE TREES: Acer saccharinum (silver maple, a native species)-- Hainesia lythri (Desmaz) Höhn, leaf spot: Collected at a nursery in Putnam County, (24 August 95, G. Langley, M. Peacock, P95-3246). NEW HOST RECORD.
Koelreuteria elegans (golden-rain tree)-- Pythium splendens, root rot: Collected at a nursery in Duval County, (25 July 95, F. Podris, P95-2894). NEW HOST RECORD.
FOOD OR CROP PLANTS: Agastache foeniculum (anise hyssop)-- Cercospora sp., leaf spot: Collected at a nursery in Seminole County, (05 July 95, L. Wilber, P95-2680). NEW HOST RECORD.
Myrciaria cauliflora (jaboticaba)-- Phomopsis sp., a leaf spot: Collected at a garden center in Collier County, (28 July 95, M. Brodie, P95-2929). NEW HOST RECORD.
Rubus sp. (blackberry)-- Phytophthora cinnamomi Rands, root rot: Collected at a nursery in Alachua County, (27 July 95, J. Miller, M. Peacock, P95-2871). NEW HOST RECORD.
Zizyphus jujuba (jujube)-- Rhizoctonia sp., leaf spot: Collected by Paul Miller from the U of F in Alachua County, (05 July 95, M. Peacock, H. Collins, P95-2711). NEW HOST RECORD.
WEEDS OR GRASSES: Sorghum halepense (Johnson grass, an invasive weed)-- Pseudocercospora sp. & Curvularia sp., leaf spot: Collected at a nursery in Alachua County, (04 August 95, M. Peacock, D. Davison, P95-2976). NEW HOST RECORDS.
Zizania aquatica (wild rice, a native grass species)-- Bipolaris sp., leaf spot: Collected at Suwannee Labs in Columbia County, (17 August 95, J. Echols, P95-3119). NEW HOST RECORD.
NATIVE OR NATURALIZED PLANTS: Acanthospermum hispidum (sheep bur, native to S. America)-- Pseudocercospora sp., leaf spot: Collected at a nursery in Alachua County, (04 August 95, M. Peacock, D. Davison, P95-2971). NEW HOST RECORD.
Boerhavia erecta (spiderling)-- Albugo platensis (Speg.) Swingle, white rust: Collected at a dooryard in Volusia County, (16 August 95, Zellers, P95-3154).
Chenopodium album (lamb's-quarters)-- Cercosporidium sp., leaf spot: Collected at a nursery in Alachua County, (04 August 95, M. Peacock, D. Davison, P95-2970). NEW HOST RECORD.
Drosera brevifolia (dwarf sundew)-- Cylindrocladium parasiticum Crous, Wingfield, & Alfenas, crown, root rot: Collected at a nursery in Lake County, (17 July 95, C. Murphy, P95-2799). NEW HOST RECORD.
Pteridium aquilinum (bracken fern)-- Melasmia sp., tar spot: Collected at a state park in Orange County, (11 July 95, B. Wilder, B. Lemstrom, P95-2707). NEW HOST RECORD.
Senna marilandica (wood senna or wild senna, syn: Cassia marilandica)-- Cercosporidium sp., leaf spot: Collected at a nursery in Alachua County, (04 August 95, M. Peacock, D. Davison, P95-2968). NEW HOST RECORD.
Vaccinium corymbosum (highbush blueberry)-- Xanthomonas sp., leaf spot: Collected at a nursery in Haines City, (07 August 95, P. Lyrene, P95-3078). NEW HOST RECORD.
