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Stephen L. Lapointe, Ph.D.
Research Entomologist
U. S. Horticultural Research Laboratory
2001 South Rock Road
Fort Pierce, FL 34945
Telephone: (772) 462-5914
Fax: (772) 462-5986
Email:
Stephen.Lapointe@ars.usda.gov
Background
After receiving his doctorate from Cornell University in 1986, Dr. Lapointe
worked for the International Center for Tropical Agriculture (CIAT), one
of the Consultative Group on International Agricultural Research (CGIAR)
centers located near Cali, Colombia until 1997. Through 1993, his research
focussed on pests of tropical forage plants. He then administered an international
project, based in Bahia, Brazil, to increase cassava productivity in Latin
America and western Africa in collaboration with the Brazilian national
agricultural research program (EMBRAPA) and the International Institute
for Tropical Agriculture (IITA). He has been employed by the ARS since
1997.
Current Research Projects
Overall goal is development of environmentally appropriate means of insect
control through understanding of insect biology, ecology and physiology.
Research focuses on development of environmentally appropriate control
strategies for exotic pests important to the citrus, horticultural and
ornamental plant industries. These include the Diaprepes root weevil (Diaprepes abbreviatus), the citrus leafminer (Phyllocnistis citrella) and the Asian citrus psyllid (Diaphorina citri). Research is conducted on aspects of basic biology and chemical ecology
with the goal of developing novel approaches to integrated control. These
include the discovery and use of insect sex pheromones as attractants and
mating disruptants, the use of particle films to deter oviposition, biological
control (egg parasitoids), and physical barriers. Current research partners
include the University of Florida, University of California, Universidade
de São Paulo (Piracicaba), private industry and ARS colleagues in Florida,
Hawaii, Maryland and Texas.
Effort is also dedicated to the application of advanced experimental design
to proportion/amount problems to solve entomological constraints .
These include the optimization of artificial diets for rearing insects
through application of geometric multivariate designs (Lapointe et al.
2008) and identification of optimal pheromone blend ratios for trapping
and mating disruption (Lapointe et al. 2009).
Diaprepes root weevil adult
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 Diaprepes root weevil larva feeding on citrus roots.
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pink hibiscus mealybug (PHM)
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Lapointe, S., L. Stelinksi, T. Evens, R. Niedz, D. Hall and A. Mafra-Neto.
(2009).
Sensory imbalance as mating disruption mechanism in a moth: elucidation
by
multivariate geometric designs and response surface models.
Submitted to PNAS.
Lapointe, S. L. and D. G. Hall.
(2009).
Arrestment behavior in the polyphagous tropical root weevil Diaprepes
abreviatus. J. Econ. Entomol. (in press).
Otálora-Luna, F., J. A. Hammock, R. T. Alessandro, S. L. Lapointe and
J. C. Dickens.
(2009).
Host plant kairomones for the tropical root weevil Diaprepes abbreviatus.
Arthropod-Plant Interactions (in press).
Duncan, L. W., R. J. Stuart and S. L. Lapointe.
2009.
Use of landscape fabric to manage Diaprepes root weevil in citrus groves.
Florida Entomologist 92: 74-79.
Sirot, L. K. and S. L. Lapointe.
2008.
Patterns and consequences of mating behavior of the Diaprepes root weevil
Diaprepes abbreviatus (Coleoptera: Curculionidae) in the field.
Florida Entomologist 91: 400-406.
Lapointe, S. L., T. J. Evens and R. P. Niedz. 2008. Insect diets as mixtures:
optimization for a polyphagous weevil.
Journal of Insect Physiology 54: 1157-1167.
Hall, D. G., A. Roda, S. Lapointe and K. Hibbard.
2008.
Phenology of Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae)
in Florida based on attraction of adult males to pheromone traps. Florida
Entomologist 91: 305-310.
Sirot, L. K., H. J. Brockmann, and S. L. Lapointe.
2007.
Behavioral and morphological correlates of male post-copulatory reproductive
success. Animal Behaviour 74: 143-152.
Lapointe, S. L. and W. S. Leal.
2007.
Describing seasonal phenology of the leafminer Phyllocnistis citrella
(Lepidoptera: Gracillariidae) with pheromone lures: controlling for lure
degradation.
Florida Entomologist 90: 710-714.
Lapointe, S. L., D. M. Borchert, and D. G. Hall.
2007.
Effect of low temperatures on mortality and oviposition in conjunction
with climate mapping to predict spread of the root weevil Diaprepes abbreviatus
and introduced natural enemies. Environmental Entomology 36: 73-82.
Hall, D. G., S. L. Lapointe, and E. J. Wenninger.
2007.
Effects of a particle film on biology and behavior of Diaphorina citri
(Homoptera: Psyllidae) and its infestations in Citrus.
J. Econ. Entomol. 100: 847-854.
Lapointe, S. L., Laura K. Sirot, Jane Brockmann. June 2007. Male postcopulatory
reproductive success in the beetle Diaprepes abbreviatus. Animal
Behaviour, 2007, 74: 143-152
Duncan, R. E., B. J. Ulmer, J. E. Peña, and S. L. Lapointe.
2007.
Reproductive biology of Fidiobia dominica (Hymenoptera: Platygastridae),
an egg parasitoid of Diaprepes abbreviatus (Coleoptera: Curculionidae).
Environ. Entomol. 36: 376-382.
Weathersbee III, A. A., S. L. Lapointe, R. G. Shatters, and D. G. Hall.
2006.
Activity of Bacillus thuringiensis isolates producing novel endotoxins
as measured by an innovative bioassay against neonate Diaprepes abbreviatus
(Coleoptera: Curculionidae). Florida Entomologist 89: 441-448.
Ulmer, B. J., J. E. Peña, S. L. Lapointe, and G. Mathurin.
2006.
The occurrence of parasitoids attacking citrus weevil eggs on St. Lucia.
Florida Entomologist 89: 407-409.
Sirot, L. K., S. L. Lapointe, R. Shatters and M. Bausher.
2006.
Transfer and fate of seminal fluid molecules in the beetle, Diaprepes
abbreviatus: Implications for the reproductive biology of a pest species.
J. Insect Physiol. 52: 300-308.
Shatters, Jr., R. G., L. M. Boykin, S. L. Lapointe, W. B. Hunter, and
A. A. Weathersbee 3rd.
2006.
Phylogenetic and structural relationships of the PR5 gene family reveal
an ancient multigene family conserved in plants and select animal taxa.
J. Molec. Evolution 63 (1): 12-29.
Lapointe, S. L., C. L. McKenzie and D. G. Hall.
2006.
Reduced oviposition by Diaprepes abbreviatus (L.) (Coleoptera: Curculionidae)
and growth enhancement of citrus by Surround® particle film.
J. Econ. Entomol. 99 (2): 109-116.
Lapointe, S. L., D. G. Hall, Y. Murata, A. L. Parra-Pedrazzoli, J. M.
S. Bento, E. Vilela, and W. S. Leal.
2006.
Field evaluation of a synthetic female sex pheromone for the leafmining
moth Phyllocnistis citrella (Lepidoptera: Gracillariidae) in Florida citrus.
Florida Entomologist 89: 274-276.
Lapointe, S. L.
2005.
Response of Diaprepes abbreviatus (Coleoptera: Curculionidae) to application
rates of a particle film. Florida Entomologist 88: 222-224.
Lapointe, S. L., W. B. Hunter, and R. T. Alessandro.
2004.
Cuticular hydrocarbons on elytra of the Diaprepes root weevil Diaprepes
abbreviatus (L.) (Coleoptera: Curculionidae).
Agricultural and Forest Entomology 6: 251-257.
Lapointe, S. L., C. L. McKenzie, and W. B. Hunter.
2003.
Toxicity and repellency of Tephrosia candida to larval and adult Diaprepes
root weevil (Coleoptera: Curculionidae).
J. Econ. Entomol. 96: 811-816.
Serrano, M. S., and S. L. Lapointe.
2002.
Evaluation of host plants and a meridic diet for rearing Maconellicoccus
hirsutus (Hemiptera: Pseudococcidae) and its parasitoid Anagyrus kamali
(Hymenoptera: Encyrtidae). Florida Entomologist 85: 417-425.
Lapointe, S. L., and K. D. Bowman.
2002.
Is there meaningful plant resistance to Diaprepes abbreviatus (Coleoptera:
Curculionidae) in citrus rootstock germplasm?
J. Econ. Entomol. 95: 1059-1065.
Zhang, A., D. Amalin, S. Shirali, M. S. Serrano, R. A. Franqui, J. E.Oliver, J. A. Klun, J. R. Aldrich, D. E. Meyerdirk, and S. L. Lapointe. 2004. Sex pheromone of the pink hibiscus mealybug,Maconellicoccus hirsutus, contains an unusual cyclobutanoid monoterpene. PNAS 101: 9601-9606.
Bowman, K. D., J. Shapiro, and S. L. Lapointe. 2001. Sources of resistance
to Diaprepes abbreviatusin subfamily Aurantiodeae, Rutaceae. HortScience 36: 332-336.
Delalibera, Jr., I., G. J. de Moraes, S. L. Lapointe, C. A. D. da Silva
and M. A. Tamai. 2000. Temporal variability and progression of Neozygites sp.(Zygomycetes: Entomophthorales) in populations of Mononychellus tanajoa(Bondar) (Acari: Tetranychidae). An. Soc. Entomol. Brasil 29: 523-535.
Hall, D.G., J. Peña, R. Franqui, R. Nguyen, P. Stansly, C. McCoy, S. L.
Lapointe, R. C. Adair and B. Bullock. 2001. Status of biological control
by egg parasitoids of Diaprepes abbreviatus(Coleoptera: Curculionidae) in citrus in Florida and Puerto Rico. BioControl
46: 61-70.
Lapointe, S. L. 2001. Effect of temperature on egg development of Diaprepes abbreviatus(Coleoptera: Curculionidae). Fla. Entomol. 84: 298-299.
Mankin, R. W., S. L. Lapointe,and R. A. Franqui. 2001. Acoustic surveying
of subterranean insect populations in citrus groves. J. Econ. Entomol.
(in press)
McKenzie, C., and S. L. Lapointe. 2001. Landscape fabric as a physical
barrier to neonate Diaprepes abbreviatus (Coleoptera: Curculionidae). Fla.
Entomol. (in press).
Serrano, M. S., S. L. Lapointe and D. E. Meyerdirk. 2001. Attraction of
Male Pink Hibiscus Mealybug (Hemiptera: Pseudococcidae) by Virgin Females.
Environmental Entomology 30: 339-345.
Hunter, W. B. and S. L. Lapointe. 2000. Primary cell culture from the
root weevil [Coleoptera: Curculionidae:Diaprepes abbreviatus(L.)]. J. Invert. Pathol. (in press).
Lapointe, S. L. and R. M. Sonoda. 2000. The Effect of Arthropods, Diseases,
and Nematodes on Tropical Pastures. pp. 201-218 (Ch. 12) In Sotomayor-Rios,
A. and W. D. Pitman (eds.), "Tropical forage plants: development and use".
CRC Press, Boca Raton, FL.
Lapointe, S. L., W. B. Hunter, and C. J. Funk. (2000). Infection of the Diaprepes root weevil, Diaprepes abbreviatus(Coleoptera: Curculionidae), by an Iridovirus.
Lapointe, S. L. 2000. A particle film deters oviposition by Diaprepes abbreviatus (Coleoptera: Curculionidae). J. Econ. Entomol. 93: 1459-1463.
Lapointe, S. L. 2000. Thermal requirements for development of Diaprepes abbreviatus(Coleoptera: Curculionidae). Environ. Entomol. 29:150-156.
Mankin, R., J. Brandhorst-Hubbard, K. L. Flanders, M. Zhang, R. L. Crocker,
S. L. Lapointe, C. W. McCoy, J. R. Fisher, and D. K. Weaver. 2000. Eavesdropping
on insects hidden in soil and interior structures of plants. J. Econ. Entomol.
93 (4): 1173-1182.
Shapiro, J. P., K. D. Bowman, and S. L. Lapointe. 2000. Dehydrothalebanin,
a source of resistance from Glycosmis pentaphyllaagainst the citrus root weevil Diaprepes abbreviatus. J. Agric. Food Chem. 48: 4404-4409.
Bellotti, A. C., S. L. Lapointe, L. Smith. 1999. Recent advances in cassava
pest management. Ann. Rev. Entomol. 44:343-370.
Bento, J.M.S., G.J. de Moraes, A.C. Bellotti, J.A. Castillo, J.F. Warumby,
S.L. Lapointe. 1999. Introduction of parasitoids for the control of the
cassava mealybug Phenacoccus herreni(Hemiptera: Pseudococcidae) in north-eastern Brazil. Bull. Entomol. Res.
89: 403-410.
Lapointe, S. L., and J. P. Shapiro. 1999. Effect of soil moisture on development
of Diaprepes abbreviatus(Coleoptera: Curculionidae). Florida Entomol. 82: 291-299.
Lapointe, S. L., J. P. Shapiro, and K. D. Bowman. 1999. Identification
of sources of plant resistance to Diaprepes abbreviatus(Coleoptera: Curculionidae). J. Econ. Entomol. 92: 999-1004.
Tang, Y. Q., S. L. Lapointe, L. C. Brown, and W. B. Hunter. 1999. Effects
of host plant and temperature on the biology of Toxoptera citricida(Homoptera: Aphididae). Environ. Entomol. 28: 895-900.
Lapointe, S. L., M. S. Serrano, and P. G. Jones. 1998. Microgeographic
and vertical distribution of Acromyrmex landolti(Hymenoptera: Formicidae) nests in a Neotropical savanna. Environ. Entomol.
27: 636-641.
Lapointe, S. L., M. S. Serrano, I. I. Corrales. 1996. Resistance to leafcutter
ants and inhibition of their fungal symbiont by tropical forage grasses.
J. Econ. Entomol. 89: 757 - 765.
Miles, J. W., S. L. Lapointe, M. L. Escandón & G. Sotelo. 1995. Inheritance
of resistance to spittlebug (Homoptera: Cercopidae) in interspecific Brachiaria spp.hybrids. J. Econ. Entomol. 88: 1477 - 1481.
Lapointe, S. L., M. S. Serrano, G. L. Arango, G. Sotelo and F. Cordoba.
1992.
Antibiosis to spittlebugs (Homoptera: Cercopidae) in accessions of Brachiaria
spp.
J. Econ. Entomol. 85(4): 1485-1490.
Thomas, D. and S. L. Lapointe.
1989.
Testing new accessions of Guinea Grass (Panicum maximum) for acid soils
and resistance to spittlebug (Aeneolamia
reducta).
Tropical Grasslands 23: 232-239.
Ferrufino, A. and S. L. Lapointe.
1989.
Host plant resistance in Brachiaria grasses to the spittlebug Zulia colombiana.
Entomol. exp. appl. 51:155-162.
Lapointe, S. L., W. M. Tingey and T. A. Zitter.
1987.
Potato virus Y transmission reduced in an aphid-resistant potato species.
Phytopathology 77:819-822.
Lapointe, S. L. and W. M. Tingey.
1986.
Glandular trichomes of Solanum neocardenasii confer resistance to the
green peach aphid (Homopera: Aphididae).
J. Econ. Entomol. 79:1264-1268.
Dimock, M. B., S. L. Lapointe and W. M. Tingey.
1986.
Solanum neocardenasii: a new source of potato resistance to the Colorado
potato beetle (Coleoptera: Chrysomelidae).
J. Econ. Entomol. 79:1269-1275.
Lapointe, S. L. and W. M. Tingey.
1984.
Feeding response of the green peach aphid (Homoptera:
Aphididae) to potato glandular trichomes.
J. Econ. Entomol. 77(2):386-389.
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