Triology Vol. 42, No. 1 - Florida Department of Agriculture

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Triology Vol. 42, No. 1
TRI-OLOGY, Vol. 42, No. 1
Mark A. Garland, Managing Editor
JANUARY-FEBRUARY 2003
Wayne N. Dixon, Ph. D., Editor
ENPP Home | Tri-ology Home
Botany
Entomology
Nematology
Plant Pathology
BOTANY SECTION
Compiled by Richard E. Weaver, Jr., Ph.D.
For this period, 124 specimens were submitted for identification, and 639 were received from
other Sections for identification and/or name verification (total=763). Some of the samples not
previously discussed in Tri-ology:
Gelsemium sempervirens (L.) J. St.-Hil. (genus of 3 species, 2 ranging from the SE United States into
Guatemala, 1 from SE Asia into W Malesia.) Gelsemiaceae or Loganiaceae. Carolina jasmine,
Carolina jessamine. A woody vine with opposite, evergreen, mostly lanceolate leaves, vigorously
climbing over and through shrubby vegetation. The flowers are borne singly or few together in
the axils of the leaves. They are 3-4 cm across, bright yellow, broadly funnelform, with a delicate,
sweet fragrance. The plants bloom in late winter and early spring, and are a familiar part of the
landscape throughout Florida at that time. They are frequently cultivated as well. All parts of the
plant contain alkaloids similar to strychnine and are seriously toxic. Ingestion has been
documented to have caused poisoning and death in livestock and humans; even the nectar and
the honey made from it are dangerous. Its Asiatic relative has reputedly been used to commit
murder and suicide. Native in the Coastal Plain and lower Piedmont from Virginia to Texas, and
continuing through Mexico into Guatemala. (Alachua County; B2003-108; Dr. Greg S. Hodges; 20
February 2003). (Godfrey 1988; Kingsbury 1964; Mabberley 1997). [The second native species,
Gelsemium rankinii Small, looks similar but grows in swamps and blooms later; its flowers are
odorless and have acuminate, rather than blunt, sepals. It occurs in the Panhandle from
Tallahassee west and also in Nassau County, but is always less common than G. sempervirens.Mark A. Garland]
Ricciocarpus natans (L.) Corda (genus of one species). Ricciaceae. A floating liverwort. Unlike most
plants sent in for identification and reported on here, this is not a tracheophyte (vascular plant)
but rather a bryophyte. These are primitive plants without specialized conducting tissue, and
reproducing by spores. Unlike the vascular plants, the gametophyte or haploid generation is the
conspicuous and familiar phase. Besides liverworts, of which Ricciocarpus is an example,
bryophytes include the more familiar mosses and the obscure hornworts. The plant body of
Ricciocarpus is a thallus, that is, it is not differentiated into stems and leaves. It is more or less
fan-shaped, with several lobes, only 5 - 15 mm across, and pale green with purplish margins. By
far the most conspicuous parts of the plant are the numerous dark purple ribbonlike scales
hanging from the undersurface. Ricciocarpus is most commonly found in the calm shallow waters
of swamps, ponds, and ditches. Occasionally it will become terrestrial in the moist soil around the
edges of these bodies of water, and then the thallus becomes more deeply lobed. Reproduction is
by fragmentation, or by means of spores which are released when the thallus decays. Aquarists
occasionally grow these plants because they serve well as anchors for the bubble-nests of such
fish as bettas and gouramis, and then as protection for the fry. Cosmopolitan. (Alachua County;
B2003-67; Yvette Ogle; 3 February 2003). (Crum 1991).
Ceratiola ericoides Michx. (genus of one species). Empetraceae or Ericaceae. Rosemary. This is not
the rosemary of sachets and stews (Rosmarinus officinalis L. of the Lamiaceae [mint family] native
to the Mediterranean region) but a dissimilar plant restricted in distribution to the Deep South of
the United States. It is a distinctively rounded, densely branched shrub to 2.5 m tall. The leaves
are dark green and needle-like, about 1 cm long and in four ranks around the branchlets; the
edges are strongly folded under, so that the leaves appear square in cross-section. The plants are
dioecious, with staminate and pistillate flowers borne on separate individuals in the autumn.
Individual flowers are tiny and not showy; they are followed by yellow-green drupes that mature
during the winter. Ceratiola is locally common and a conspicuous part of the vegetation on
coastal dunes and interior sand ridges in most parts of Florida . Southeastern South Carolina
through eastern Georgia and most of Florida along the Gulf Coast to southern Mississippi. (Collier
Co.; B2003-11; Scott D. Krueger; 24 February 2003). (Godfrey 1988).
Danae racemosa (L.) Moench. (genus of one species). Asparagaceae or Ruscaceae. Alexandrian
laurel, poets' laurel. A plant related to Asparagus and similar to it in many respects: superficially
it resembles a shrub, but the clumped stems are not woody and persist for only 2-3 years; and
what appear to be leaves are actually modified stems, termed cladodes or phylloclades. The true
leaves are scale-like and inconspicuous and persist at the base of the cladodes. The cladodes
themselves are 3 - 7 cm long, narrowly ovate and tapering to a sharp, slender tip; they are thicktextured, evergreen, and a lustrous bright green. Flowers are small, greenish and inconspicuous,
borne in racemes at the tips of the branches, but they are followed by beautiful, bright orange,
marble-size berries. The plant is highly ornamental and is prized by both florists and gardeners.
The "foliage" has become popular for use in floral arrangements; the maintenance-free plants
thrive in that most difficult of gardening situations - dry, deep shade. Southwest Asia, from Syria
to Iran. (Imported from Italy for the florist trade; B2003-80; Stacy S. Simmons; 4 February 2003).
(Dahlgren, Clifford & Yeo 1985; Huxley 1992).
REFERENCES
Crum, H. A.. 1991. Liverworts and hornworts of southern Michigan. University of Michigan
Press, Ann Arbor. 232 p.
Dahlgren, R.M.T., H.T. Clifford, and P.F. Yeo. 1985. The families of the monocotyledons.
Springer-Verlag, Heidelberg, Berlin, New York, Tokyo. 520 p.
Godfrey, R.K. 1988. Trees, shrubs, and woody vines of northern Florida and adjacent Georgia
and Alabama. University of Georgia Press, Athens. 734 p.
Huxley, A.J. (ed.). 1992. New Royal Horticultural Society dictionary of gardening. 4 vols.
Macmillan Press, London. 3,240 p.
Kingsbury, J.M. 1964. Poisonous plants of the United States and Canada. Prentice-Hall, Inc.,
Englewood Cliffs, NJ. 626 p. ENTOMOLOGY SECTION
Compiled by Susan E. Halbert, Ph.D.
For the month of January, there were 412 samples consisting of ca. 32,748 specimens. In
February, there were 306 samples consisting of ca. 22,638 specimens. Some of the samples are
listed below:
ORNAMENTALS, WOODY PLANTS AND PALMS: Calophyllum inophyllum (Alexandrian laurel,
Indiapoon, beauty-leaf)-- Paratachardina lobata (Chamberlin), lobate lac scale: A slight infestation
was found on the campus of the University of Miami (Miami-Dade County; E2003-701; Michael
Bromet, University of Florida, Ft. Lauderdale Research and Education Center, Ft. Lauderdale; 25
February 2003). NEW DPI HOST RECORD.
Ilex x attenuata (topal holly)-- Ferrisia virgata (Cockerell), striped mealybug: A moderate
infestation involving 20-50% of ~500 plants was found at a nursery in Clewiston (Hendry County;
E2003-269; Lori A. Richards; 22 January 2003). NEW DPI HOST RECORD.
Ixora sp. (ixora)-- Vinsonia stellifera (Westwood), stellate scale: A slight infestation on 130 plants
was found at a bank in Miramar (Broward County; E2003-77; Lynda F. Davis; 10 January 2003).
NEW DPI HOST RECORD.
Senna polyphylla (desert cassia, retama prieta)-- Maconellicoccus hirsutus (Green), pink hibiscus
mealybug: A moderate infestation on 34 of 39 plants was found at a nursery in Miami (MiamiDade County; E2003-634; Edward T. Putland, Jose G. Aguila, and Haydee L. Escobar; 24 February
2003). NEW DPI HOST RECORD.
Senna surattensis (glossy shower)-- Philephedra tuberculosa Nakahara & Gill, a soft scale: An
infestation was found at a residence in Ft. Myers (Lee County; E2003-19; Kevin Burke,
homeowner; 2 January 2003). NEW DPI COUNTY RECORD.
Tabebuia sp. (trumpet tree)-- Androthrips ramachandrai Karny, a thrips: A severe infestation was
found at a nursery in Homestead (Miami-Dade County; E2003-116; Mario Jose Hernandez; 31
December 2002). NEW DPI HOST RECORD.
Terminalia muelleri (West Indian almond)-- Paratachardina lobata (Chamberlin), lobate lac scale: A
moderate infestation was found at a residence in Coral Gables (Miami-Dade County; E2003-347;
Christine A. Zamora; 28 January 2003). NEW DPI HOST RECORD.
Viburnum odoratissimum (mirror-leaf viburnum)-- Maconellicoccus hirsutus (Green), pink hibiscus
mealybug: A slight infestation was found on 10% of 20 plants at a nursery in Miami (Miami-Dade
County; E2003-639; Edward T. Putland, Jose G. Aguila, and Haydee L. Escobar; 24 February 2003).
NEW DPI HOST RECORD.
ORNAMENTALS, FOLIAGE PLANTS: Caesalpinia pulcherrima (pride-of-Barbados)-- Maconellicoccus
hirsutus (Green), pink hibiscus mealybug: A slight infestation involving 10% of 23 plants was
found at a nursery in Miami (Miami-Dade County; E2003-632; Edward T. Putland, Jose G. Aguila,
and Haydee L. Escobar; 24 February 2003). NEW DPI HOST RECORD.
ORNAMENTALS, FLOWERING PLANTS: Cattleya sp. (cattleya orchid)-- Vinsonia stellifera (Westwood),
stellate scale: A slight infestation was found at a residence in Miami (Miami-Dade County; E2003442; Lynda F. Davis; 4 February 2003). NEW DPI HOST RECORD.
Cestrum diurnum (day-blooming jasmine)-- Vinsonia stellifera (Westwood), stellate scale: A slight
infestation was found on 3-4 plants at a nursery in Miami (Miami-Dade County; E2003-277; Lynda
F. Davis; 23 January 2003). NEW DPI HOST RECORD.
Hibiscus rosa-sinensis (hibiscus)-- Maconellicoccus hirsutus (Green), pink hibiscus mealybug: A
severe infestation involving 25 of 35+ plants was found at a residence in Delray Beach (Palm
Beach County; E2003-315; Mark C. Williams; 24 January 2003). NEW DPI COUNTY RECORD.
FOREST AND SHADE TREES: Butea monosperma (Flame of the forest, dhak, palas)-- Paratachardina
lobata (Chamberlin), lobate lac scale: A slight infestation was found at a residence in Coral Gables
(Miami-Dade County; E2003-703; Michael B. Bromet, University of Florida, Ft. Lauderdale Research
and Education Center, Ft. Lauderdale; 25 February 2003). NEW DPI HOST RECORD.
Cordia sebestena (geiger tree)-- Saissetia oleae (Olivier), black scale: A moderate infestation
involving one of seven plants was found at a residence in Naples (Collier County; E2003-190; Dr.
Douglas L. Caldwell, Collier County Extension Agent, University of Florida; 2 January 2003). NEW
DPI HOST RECORD.
Ficus aurea (Florida strangler fig)-- Greenidea ficicola Takahashi, an Asian Ficus aphid: Colonies
were found on the new growth of a large tree in Chapman Field, Kendall (Miami-Dade County;
E2003-569; Gwen H. Myres, Dr. Susan E. Halbert, and Mark A. Garland; 18 February 2003). This
aphid is a newly introduced species from Asia (see under Insect Detection). So far we have been
able to rear these aphids on Ficus carica (edible fig) and Ficus benjamina (Dr. Susan E. Halbert).
NEW DPI HOST RECORDS.
Guajacum sanctum (lignum vitae; holywood lignum vitae, roughbark lignum vitae)-- Myllocerus
undatus Marshall, a weevil: A severe infestation was found on a plant at a residence in West Palm
Beach (Palm Beach County; E2002-6147; Raymond T. Buchholz; 13 December 2003). NEW DPI
HOST RECORD.
Paratachardina lobata (Chamberlin), lobate lac scale: An infestation was found at a botanical
garden in West Palm Beach (Palm Beach County; E2003-194; Michael B. Bromet, University of
Florida, Ft. Lauderdale Research and Education Center, Ft. Lauderdale; 13 January 2003). NEW DPI
HOST RECORD.
Haematoxylum campechianum (bloodwoodtree)-- Heteropsylla fusca Crawford, a psyllid: A moderate
infestation was found at a the Fruit and Spice Park in Miami (Miami-Dade County; E2003-560;
Julieta Brambila, Eduardo M. Varona, Mark A Garland, and Dr. Susan E. Halbert; 17 February 2003).
The literature lists this psyllid from H. campechianum and Acacia farnesiana. It is found in
Dominican Republic, Haiti, and Puerto Rico. The identity of the psyllids was confirmed by Dr.
Daniel Burckhardt, Naturhistorisches Museum, Basel, Switzerland. (Dr. Susan E. Halbert). NEW USA
CONTINENTAL RECORD.
Synsepalum dulcificum (miraculous fruit, miraculous berry)-- Paratachardina lobata (Chamberlin),
lobate lac scale: A moderate infestation was found on 31 plants at a nursery in Miami (MiamiDade County; E2003-252; Duraid I. Hanna; 21 January 2003). NEW DPI HOST RECORD.
FOOD AND CROP PLANTS: Diospyros digyna (black sapote, chocolate pudding tree)-Paratachardina lobata (Chamberlin), lobate lac scale: A severe infestation was found on a plant at
a residence in West Palm Beach (Palm Beach County; E2003-717; Carelio Correa, homeowner; 25
February 2003). NEW DPI HOST RECORD.
Ipomoea batatas (sweet potato, boniato, camote, batata)-- Philephedra tuberculosa Nakahara & Gill,
a soft scale: A moderate infestation was found on two of five plants at a discount store in Ruskin
(Hillsborough County; E2003-64; K. Lea Etchells; 10 January 2003). NEW DPI HOST RECORD.
Manilkara jaimiqui (wild dilly, wild sapodilla)-- Eucalymnatus tessellatus (Signoret), tessellated
scale: A slight infestation was found at McCoy Indigenous Park in Key West (Monroe County;
E2003-622; Lynn D. Howerton; 20 February 2003). NEW DPI HOST RECORD.
Manilkara zapota (sapodilla)-- Paratachardina lobata (Chamberlin), lobate lac scale: A slight
infestation was found on a plant at a nursery in Miami (Miami-Dade County; E2003-245; Duraid I.
Hanna, Mario Jose Hernandez, and Eduardo M. Varona; 13 January 2003). NEW DPI HOST RECORD.
CITRUS: Citrus sinensis (sweet orange)-- Chilocorus circumdatus Gyllenhal, a ladybird beetle: A
specimen was found in a grove near Winter Haven (Polk County; E2002-6119; Julieta Brambila
and Dr. Susan E. Halbert; 23 December 2002). This is a recent intentional introduction (Dr.
Michael C. Thomas).
Citrus sp. (citrus)-- Diaphorina citri Kuwayama, Asian citrus psyllid: A slight infestation was found
on a plant at a feed store in Trenton (Gilchrist County; E2003-215; W. Wayne Bailey; 15 January
2003). NEW DPI COUNTY RECORD.
Citrus sp. (citrus)-- Diaphorina citri Kuwayama, Asian citrus psyllid: Infestations were found near
Bodles, Jamaica (St. Catherine County; E2003-259; Dr. Sharon A. McDonald; 18 January 2002).
NEW NATIONAL RECORD FOR JAMAICA.
WEEDS AND GRASSES: Conyza canadensis (Canadian horseweed)-- Dysmicoccus brevipes
(Cockerell), pineapple mealybug: A slight infestation was found on roots of the weed near a citrus
grove office in Vero Beach (Indian River County; E2003-412; Kenneth L. Hibbard and Dr. Susan E.
Halbert; 6 February 2003). NEW DPI HOST RECORD.
Toxicodendron radicans (poison ivy)-- Hemicheyletia anarbora De Leon, a cheyletid mite: Several
specimens were found on this native weed at Hugh Taylor Birch State Park (Broward County;
E2002-5729; Julieta Brambila; 22 November 2002). NEW DPI STATE RECORD. This mite is found
on Caribbean islands (W.C. 'Cal' Welbourn).
NATIVE AND NATURALIZED PLANTS: Chrysophyllum oliviforme (satin leaf)-- Paratachardina lobata
(Chamberlin), lobate lac scale: A slight infestation was found on one of four plants at a nursery in
Princeton (Miami-Dade County; E2003-397; Mario Jose Hernandez; 3 February 2003). NEW DPI
HOST RECORD.
Dodonaea viscosa (varnish leaf, hopseed bush)-- Paratachardina lobata (Chamberlin), lobate lac
scale: A severe infestation was found at Fairchild Tropical Garden (Miami-Dade County; E2003154; Eduardo M. Varona and Edward T. Putland; 10 January 2003). NEW DPI HOST RECORD.
Erithalis fruticosa (blacktorch)-- Paratachardina lobata (Chamberlin), lobate lac scale: A severe
infestation was found at Fairchild Tropical Garden, Miami (Miami-Dade County; E2003-156;
Eduardo M. Varona and Edward T. Putland; 10 January 2003). NEW DPI HOST RECORD.
Myrica cerifera (wax myrtle, southern bayberry)-- Paratachardina lobata (Chamberlin), lobate lac
scale: A severe infestation was found at Big Cypress National Preserve near Ochopee (Collier
County; E2003-448; Matthew W. Brodie; 4 February 2003). NEW DPI COUNTY RECORD.
Pithecellobium keyense (Keys blackbead)-- Paratachardina lobata (Chamberlin), lobate lac scale: A
moderate infestation was found at the University of Miami (Miami-Dade County; E2003-702;
Michael B. Bromet and Dr. Forest W. Howard, University of Florida, Ft. Lauderdale Research and
Education Center, Ft. Lauderdale; 25 February 2003). NEW DPI HOST RECORD.
Psychotria nervosa (wild-coffee, Seminole balsamo)-- Paratachardina lobata (Chamberlin), lobate
lac scale: A slight infestation was found on a plant at a school in Miami (Miami-Dade County;
E2003-554; Haydee L. Jova; 17 February 2003). NEW DPI HOST RECORD.
Rapanea punctata (Florida rapanea, Guiana rapanea, myrsine, colicwood)-- Paratachardina lobata
(Chamberlin), lobate lac scale: A severe infestation was found on at least 15 plants at a nursery in
Miami (Miami-Dade County; E2003-163; Duraid I. Hanna; 10 January 2003). NEW DPI HOST
RECORD. A slight infestation was found at a nursery in Homestead (Miami-Dade County; E2003322; Eduardo M. Varona and Mario Jose Hernandez; 24 January 2003).
Rhizophora mangle (red mangrove, American mangrove)-- Paratachardina lobata (Chamberlin),
lobate lac scale: A slight infestation was found at a residence in Cooper City (Broward County;
E2003-193; Leonard G. Pearlstine, University of Florida, Wildlife Ecology and Conservation,
Gainesville; 13 January 2003). NEW DPI HOST RECORD.
Sideroxylon salicifolium (white bully, willow bustic)-- Ceroplastes rubens Maskell, red wax scale: A
slight infestation was found at a nursery in Homestead (Miami-Dade County; E2003-324; Eduardo
M. Varona and Mario Jose Hernandez; 24 January 2003). NEW DPI HOST RECORD.
Tetrazygia bicolor (Florida clover ash)-- Paratachardina lobata (Chamberlin), lobate lac scale: A
slight infestation was found at a school in Miami (Miami-Dade County; E2003-547; Haydee L.
Jova; 17 February 2003). NEW DPI HOST RECORD.
Tillandsia utriculata (spreading airplant, giant wild-pine)-- Dysmicoccus mackenziei Beardsley, a
mealybug: An infestation was found at St. Sebastian River State Preserve, St. Sebastian (Brevard
County; E2002-6034; Dr. Ronald D. Cave, University of Florida, Indian River Research and
Education Center; 26 November 2002). NEW DPI COUNTY RECORD.
BENEFICIAL INSECTS: Aleurothrixus floccosus (woolly whitefly)-- Amitus spiniferus (Brethes), a
whitefly parasitoid: Five specimens were reared from a colony found on citrus at the Florida citrus
arboretum in Winter Haven (Polk County; E2003-185; Julieta Brambila; 23 December 2002). NEW
DPI STATE RECORD. This species is known from Argentina and Texas and was introduced into
Italy (Dr. Gregory A. Evans). INSECT DETECTION:
Greenidea ficicola Takahashi, an Asian Ficus aphid: A single winged specimen was trapped in a
suction trap in Kendall (Miami-Dade County; E2002-5901; Gwen H. Myres; 27 November 2002).
NEW RECORD FOR THE WESTERN HEMISPHERE. This species belongs to a Southeast Asian
subfamily of aphids. It is not the species in the same genus that has been introduced recently
into California. Hosts are Ficus spp. and possibly other tropical plants (Dr. Susan E. Halbert).
Pseudopachybrachius basalis (Dallas), a seed bug: A specimen was found under fallen palm fronds
in a vacant lot in Palm Bay (Brevard County; E2003-460; Kenneth L. Hibbard; 4 February 2003).
NEW DPI COUNTY RECORD.
Teleonemia nigrina Champion, a lace bug: Two specimens were found in a sweep sample in
Gainesville (Alachua County; E2003-39; Vince Golia, FSCA Research Associate; 14 July 1996). NEW
DPI STATE RECORD. This species is native to North America and is found from South Carolina
west and southwest to California and Mexico (Laura Torres-Miller, West Virginia Department of
Agriculture).
Botany
Entomology
Nematology
Plant Pathology
NEMATOLOGY SECTION
Compiled by Renato Inserra, Ph.D. and Janete A. Brito, Ph.D.
A total of 3,363 soil and root samples was processed in January and February 2003. Details are
shown below:
Certification and Regulatory Samples:
Multistate Certification for National and
International Export 1891
Other Samples:
Identification (Invertebrates) 20
California Certification 666
Plant Problems 17
Premovement (Citrus Nursery Certification) 93
Intrastate Survey Random 500
Site or Pit Approval (Citrus Nursery Certification) 25
Molecular diagnostics 151
Nematodes of Special Interest
Barleria cristata (Philippine violet) - Aphelenchoides fragariae (Ritzema-Bos, 1891) Christie, 1932, a
foliar nematode, was found infecting the leaves of this ornamental (Seminole County; N02-1790;
Amanda D. Melco; 25 November 2002). Chlorosis and necrosis of the foliar tissues were the most
common symptoms observed on nematode-infected plants.
Capsicum annuum var. longum (chili pepper) - Meloidogyne mayaguensis, a root-knot nematode,was
found infecting the roots of this vegetable crop (Martin County; N02-1668; Kenneth L. Hibbard; 1
November 2002). Roots were severely galled by the nematode infection. Chili peppers were grown
in association with guava plants infected by M. mayaguensis. NEW HOST RECORD.
Ocimum sp. (white basil) - Meloidogyne mayaguensis, a root-knot nematode, was found infecting
the roots of this herb (Martin County; N02-01254; James J. Walukiewicz; 29 August 2002). Roots
were galled and necrotic as a consequence of the nematode infection. NEW HOST AND COUNTY
RECORD.
Psidium guajava (guava) - Meloidogyne mayaguensis, a root-knot nematode,was found infectingthe
roots of this tropical fruit tree (Martin County; N03-00286; James J. Walukiewicz and Kenneth L.
Hibbard; 26 February 2003). Roots were severely galled and damaged by the nematode infection.
Guava is known to be a good host of this nematode in the Caribbean basin. NEW HOST RECORD
FOR FLORIDA.
Solanum melongena (eggplant) - Meloidogyne arenaria, the peanut root-knot nematode, was found
infecting the roots of this vegetable crop (Martin County; N02-01639; Kenneth L. Hibbard; 1
November 2002). Roots were galled by the nematode infection. Meloidogyne arenaria infections on
eggplants occur commonly in Florida.
NEMATOLOGICAL ANALYSIS DURING JANUARY AND FEBRUARY 2003:
Bailey, W. Wayne 9
Podris, Flewellyn W. 7
Echols, M. Janie 5
Qiao, Ping 135
Emery, Tyson R. 6
Robinson, William L. 88
Fuller, Samuel A. . 227
Salisbury, Thomas L. 198
LeBoutillier, Karen W. 330
Simmons, Stacy S. 14
Ochoa, A. 270
Stone, C. 58
Pate, J. 56
Wiglesworth, Jim R. 9
PLANT PATHOLOGY SECTION
Compiled by Robert M. Leahy
For this period, the Plant Pathology section received and processed 1,001 specimens. These
included 467 pathology, 3 miscellaneous, and 18 soil samples. A total of 513 citrus canker
diagnoses was performed, including full pathogenicity tests on 3 samples from Southeast Florida,
2 from central gulf coastal Florida, 6 from southwest gulf coastal Florida, 8 from Central Florida,
and none from North Florida.
ORNAMENTALS, WOODY PLANTS AND PALMS: Adonidia sp. (adonidia)-- Nigrospora oryzae (Berk.
& Broome) Petch, leaf spot: Collected at a nursery in Goulds (Miami-Dade County; P2003-0044;
Eduardo G. Camero; 3 January 2003). NEW HOST RECORD.
Bursera simaruba (gumbo-limbo)-- Corynespora cassiicola (Berk. & M. A. Curtis) C. T. Wei, leaf spot:
Collected at a nursery in Homestead, Miami-Dade County; P2003-0055; Mario J. Hernandez; 31
December 2002).
Callistemon sp. (bottle brush)-- Puccinia psidii G. Wint., leaf rust: Collected at a nursery in Naples
(Collier County; P2003-0085; Scott D. Krueger; 9 January 2003).
Coccoloba diversifolia (pigeon plum)-- Phyllachora simplex Starb., tar spot: Collected in a natural
area near Davie (Broward County; P2003-0235; Evelyn Marques Frazier, Florida Atlantic University;
5 February 2003).
Coccoloba uvifera (sea grape)-- Discula sp., leaf spot: Collected at a nursery in Bokeelia (Lee
County; P2003-0327; Alan J. Gambill; 7 February 2003).
Eugenia foetida (Spanish stopper)-- Puccinia psidii G. Wint., leaf rust: Collected at a nursery in
Bokeelia (Lee County; P2003-0337; Alan J. Gambill; 7 February 2003).
Ficus aurea (strangler fig)-- Ophiodothella fici E. A. Bessey, tar spot: Collected at a dooryard in
Coconut Creek (Broward County; P2003-0066; Dave Benner; 7 January 2003).
Gardenia sp. (gardenia)-- Xanthomonas axonopodis pv. maculifoliigardeniae (Ark & Barrett) Vauterin,
Hoste, Kersters & Swings, bacterial leaf spot: Collected at a nursery in Apopka (Orange County;
P2003-0059; Serena Stornaiuolo; 7 January 2003).
Myrica cerifera (wax myrtle)-- Septoria myricae Ellis & Everh., leaf spot: Collected at a nursery in
Live Oak (Suwannee County; P2003-0394; W. Wayne Bailey; 21 February 2003).
Nerium oleander (oleander)-- Corynespora cassiicola (Bert. & M. A. Curtis) C. T. Wei, leaf spot:
Collected at a nursery in Naples (Collier County; P2003-0096; Scott D. Krueger; 10 January 2003).
Phoenix sylvestris (phoenix)-- Annelophora phoenicis M. B. Ellis, leaf spot: Collected at a nursery in
Parkland (Broward County; P2003-0222; J. Keith Harris; 31 January 2003).
Pimenta dioica (allspice)-- Puccinia psidii G. Wint., leaf rust: Collected at a nursery in Apopka
(Orange County; P2003-0334; Kathy A. Gonzalez; 12 February 2003).
Syzygium jambos (rose apple)-- Puccinia psidii G. Wint., leaf rust: Collected at a dooryard in Miami
(Miami-Dade County; P2003-0024; Maria C. Acosta; 31 December 2002).
Syzygium paniculatum (brush cherry)-- Puccinia psidii G. Wint., leaf rust: Collected at a nursery in
Miami (Miami-Dade County; P2003-0402; Haydee L. Escobar; 24 February 2003).
Viburnum sp. (viburnum)-- Plasmopara viburni Peck, downy mildew: Collected at a dooryard in
Maitland (Orange County; P2003-0395; Larry Smith; 24 February 2003).
Ziziphus jujuba (Indian jujube)-- Cercospora jujubae Chowdhury, leaf spot: Collected at a dooryard
in Homestead (Miami-Dade County; P2003-0192; Lynn D. Howerton; 30 January 2003).
Ziziphus mauritiana (Indian jujube)-- Cercospora jujubae Chowdhury, leaf spot: Collected at a
dooryard in Largo (Pinellas County; P2003-0150; William J. Salway; 16 January 2003).
ORNAMENTALS, FOLIAGE PLANTS: Scindapsus aureus (pothos)-- Phytophthora tropicalis Aragaki &
J. Y. Uchida, leaf blight: Collected at a nursery in Homestead (Miami-Dade County; P2003-0114;
Cheryl L. Lichkai; 13 January 2003).
Ficus benjamina (ficus)-- Agrobacterium tumefaciens Smith & Townsend, crown gall: Collected at a
nursery in St. Cloud (Osceola County; P2003-0234; Leo M. Sansoucy; 27 January 2003).
Pteris bahamensis (pteris)-- Septoria sp., leaf spot: Collected at a dooryard in Miami (Miami-Dade
County; P2003-0350; Julieta Brambila, Eduardo M. Varona, Mark A. Garland, Dr. Susan E. Halbert;
17 February 2003). NEW HOST RECORD.
ORNAMENTALS, FLOWERING PLANTS: Argusia gnaphalodes (sea lavender)-- Pseudocercospora sp.,
leaf spot: Collected at a nursery in Miami (Miami-Dade County; P2003-0047; Lynn D. Howerton;
27 December 2002).
Hydrangea macrophylla (hydrangea)-- Kutilakesa pironii Alfieri, stem gall: Collected at a nursery in
Jacksonville (Duval County; P2003-0261; Flewellyn W. Podris; 5 February 2003).
Ruellia sp. (dwarf Mexican petunia)-- Sclerotinia sclerotiorum Sacc., stem/leaf blight: Collected at a
nursery in Tampa (Hillsborough County; P2003-0089; Alan R. Haynes; 7 January 2003).
FOREST AND SHADE TREES: Albizia lebbeck (woman's tongue)-- Sphaerophragmium acaciae
(Cooke) Magnus, rust: Collected at a dooryard in Hialeah (Miami-Dade County; P2003-0167; Lynda
F. Davis; 21 January 2003).
Albizia lebbeck (woman's tongue)-- Sphaerophragmium acaciae (Cooke) Magnus, rust: Collected at a
nursery in Miami (Miami-Dade County; P2003-0351; Julieta Brambila, Eduardo M. Varona, Mark A.
Garland, Dr. Susan E. Halbert; 17 February 2003).
Quercus laurifolia (laurel oak)-- Elsinoe sp., spot anthracnose: Collected at a dooryard in Dade City
(Pasco County; P2003-0078; Helen A. Smith; 9 January 2003).
Ulmus pumila (Siberian elm)-- Seiridium unicorne (Cooke & Ellis) Sutton, stem canker: Collected at
a dooryard in Clearwater (Pinellas County; P2003-0268; Ralph J. McNeill; 4 February 2003) NEW
HOST RECORD.
FOOD OR CROP PLANTS: Rubus sp. (blackberry)-- Kuehneola uredinis (Link.) Arth., yellow rust:
Collected at a nursery in Apopka (Orange County; P2003-0405; Kathy A. Gonzalez; 19 February
2003). WEEDS AND GRASSES:
Sida acuta Burm. f. (sida)-- Abutilon mosaic begomovirus, virus: Collected at a grove in Vero Beach
(Indian River County; P2003-0245; Kenneth L. Hibbard and Dr. Susan E. Halbert; 6 February 2003).
Sorghastrum nutans (Indian steel)-- Phyllachora sp., tar spot: Collected at a nursery in Pensacola
(Escambia County; P2003-0360; Laura L. Ooms; 19 February 2003). NEW HOST RECORD.
OTHER DETECTIONS OF SPECIAL INTEREST: Rhizophora mangle (red mangrove)-- Pterosporidium
rhizophorae (Vizioli) H. W. Ho & K. D. Hyde, leaf spot: Collected at a dooryard in Homestead
(Miami-Dade County; P2003-0317; Lynn D. Howerton; 3 February 2003).
Zamia vazquezii (zamia)-- Mycoleptodiscus indicus (Sahni) Sutton, leaf spot: Collected at a nursery
in Homestead (Miami-Dade County; P2003-0026; Lynn D. Howerton; 23 December 2002).
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