Areas of Research

• Whiteflies
  1. The amount and chemistry of acylsugars affects sweetpotato whitefly (Bemisia tabaci) oviposition and development, and tomato yellow leaf curl incidence, in field grown tomato plants.
  2. Whiteflies: biology, ecology, and management in Sustainable Management of Arthropod Pests of Tomato. 
  3. Host-mediated effects of semi-persistently transmitted Squash vein yellowing virus on sweetpotato whitefly (Hemiptera: Aleyrodidae) behavior and fitness. 
  4. Transmission of Squash vein yellowing virus to and from cucurbit weeds and effects on sweetpotato whitefly (Hemiptera: Aleyrodidae) behavior.  
  5. New insecticides for management of Tomato yellow leaf curl, a virus vectored by the silverleaf whitefly, Bemisia tabaci.  
  6. The effect of intercropping common bean with poor hosts and nonhosts on numbers of immature whiteflies (Homoptera: Aleyrodidae) in the Salamá valley, Guatemala.
  7. Susceptibility of Bemisia tabaci (Hemiptera: Aleyrodidae) adult populations to imidacloprid in Georgia, USA. 
  8. The effect of subfreezing temperatures on survival of Bemisia tabaci MEAM1. Crop Protection.
  9. Evidence of the association between the Q2 mitochondrial group of Bemisia tabaci MED species (Hemiptera: Aleyrodidae) and low competitive displacement capability. 
  10. The influence of tomato yellow leaf virus on dispersal by Bemisia tabaci MEAM1 in tomato. 
  11. Efficacy of buprofezin, pyriproxyfen and spirotetramat against Bemisia tabaci MEAM1 nymphal field populations in Florida.
  12. A maximum dose bioassay to assess efficacy of key insecticides against Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae). 
  13. Biopesticides for management of Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae) and Tomato yellow leaf curl virus.
  14. Bacterial endosymbiont diversity among Bemisia tabaci populations in Florida.
  15. Development of Bemisia tabaci MEAM1 and MED on tomato (Solanum lycopersicum) alone and in a mixed population.
  16. Three release rates of Dicyphus hesperus (Hemiptera: Miridae) for management of Bemisia tabaci (Hemiptera: Aleyrodidae) on greenhouse tomato. 
  17. Assessing the temporal effects of Squash vein yellowing virus infection on settling and feeding behavior of Bemisia tabaci (MEAM1) (Hemiptera: Aleyrodidae). 
  18. Comparing host plant resistance, repellent mulches, and at-plant insecticides for management of Bemisia tabaci MEAM1 and Tomato yellow leaf curl virus. 
  19. Effects of pyrifluquinazon on nymphal stages of Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae).
  20. Evaluating weeds as hosts of Tomato yellow leaf curl virus. 
  21. Densities of eggs and nymphs and percent parasitism of Bemisia tabaci on common weeds in west central Florida.
  22. Combining novel modes of action for early-season management of Bemisia tabaci (Hemiptera Aleyrodidae) and Tomato yellow leaf curl virus in tomato.
  23. Residual effects of new insecticides on egg and nymph densities of Bemisia tabaci.
  24. A survey of parasitoids of Trialeurodes vaporariorum and Bemisia tabaci (Homoptera: Aleyrodidae) in eastern Guatemala.
• Diamondback Moth
  1. Effect of diatomaceous earth on diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae), larval feeding and survival on cabbage.
  2. A target site mutation associated with diamide insecticide resistance in the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae) is widespread in south Georgia and Florida populations. 
  3. Regional survey of diamondback moth (Lepidoptera: Plutellidae) response to maximum dosages of insecticides in Georgia and Florida. 
• Thrips
  1. Susceptibility to insecticides of Megalurothrips usitatus (Bagnall) and Frankliniella insularis (Franklin) (Thysanoptera: Thripidae) infesting Lablab purpureus in Florida.
  2. Potential of UV-C for management of two-spotted spider mites and thrips in Florida strawberry.
  3. Characterization of Frankliniella occidentalis and Frankliniella bispinosa (Thysanoptera: Thripidae) injury to strawberry. 
  4. A photo-based key of thrips (Thysanoptera) associated with horticultural crops in Florida.
  5. Effect of insecticide rotations on density and species composition of thrips (Thysanoptera) in Florida strawberry.
  6. Faba beans are not a good trap crop for thrips in snow peas in Guatemala. 
• Spider Mites
  1. Is UV-C light compatible with biological control of two spotted spider mite?
  2. Potential of UV-C for management of two-spotted spider mites and thrips in Florida strawberry.
• Other
  1. Phylogenomic and population genetics analyses of extant tomato yellow leaf curl virus strains on a global scale.
  2. Sida golden mosaic, an emerging pathogen of snap bean (Phaseolus vulgaris L.) in the southeastern United States.
  3. A maximum concentration bioassay to assess insecticide efficacy against hemipteran pests of tomato. 
  4. Arthropod pest management in strawberry. 
  5. Pests of Florida hops: preliminary observations.
  6. Determining the professional development needs of Florida integrated pest management extension agents.
  7. Effects of plants and supplemental prey on establishment of Dicyphus hesperus (Hemiptera: Miridae). 
  8. Ty-6, a major begomovirus resistance gene on chromosome 10, is effective against Tomato yellow leaf curl virus and Tomato mottle virus.
  9. Crop Protection: Pest and Disease Management.  
  10. Dispersal of Amblyseius swirskii (Acari: Phytoseiidae) on high-tunnel pepper in presence or absence of Polyphagotarsonemus latus (Acari: Tarsonemidae). 
  11. Managing Macrosteles near severini (Auchenorrhyncha: Cicadellidae) and Myzus persicae (Hemiptera: Aphididae) in Florida watercress.
  12. Susceptibility of Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae) to imidacloprid, thiamethoxam, dinotefuran, and flupyradifurone in south Florida.
  13. Quality assessment of the commercially available predator Amblyseius swirskii (Acari: Phytoseiidae). 
  14. A systemic bioassay to determine susceptibility of the pepper weevil, Anthonomus eugenii Cano (Coleoptera: Curculionidae) to cyantraniliprole and thiamethoxam.
  15. Acute toxicity and sublethal effects of fenpyroximate to Amblyseius swirskii. 
  16. Role of syrphid larvae and other predators in suppressing aphid infestations in organic lettuce on California’s Central Coast.
  17. Habitat manipulation for the conservation of natural enemies, in Encyclopedia of Pest Management.
  18. A survey of syrphid predators of Nasonovia ribisnigri in organic lettuce on the Central Coast of California.
  19. Management of arthropod pests of agriculture in the Commonwealth of the Northern Mariana Islands. 
  20. Pest management priorities among Florida’s organic vegetable growers.
  21. Lambsquarters (Chenopodium album) in a maize agroecosystem: a potential refuge for natural enemies of fall armyworm (Spodoptera frugiperda) larvae.
  22. Smith, H. A., and R. McSorley.  2002.  Effect of short-term cattle grazing on soil arthropod communities in a southern Florida pasture.  
  23. Intercropping and pest management: A review of major concepts.
  24. A comparison of some arthropod groups on monocropped and intercropped tomato in Baja Verapaz, Guatemala. 
  25. Potential of field corn as a barrier crop and eggplant as a trap crop for management of Bemisia argentifolii on common bean in north Florida.  
  26. Effect of silver reflective mulch and a summer squash trap crop on densities of immature Bemisia argentifolii on organic bean.  
  27. Parasitism of pickleworm and melonworm by Cardiochiles diaphaniae.
  28. Nitrogen accretion in soil and biomass production by three Prosopis species.

Book Chapters

• Book Chapters

  Vallad, G.E., H.A. Smith and G. Messelink. 2018. Crop Protection:  Pest and Disease Management.  Chapter 7 in Tomatoes, 2nd edition (E. Heuvelink, ed.). CABI Publishing. UK.

  Perring, T.M., P.A. Stansly, T.X. Liu, H.A. Smith, A. Andreason.  2018.  Whiteflies: biology, ecology and management in Sustainable Management of Arthropod Pests of Tomato (W.Wakil, G.E. Brust, and T. Perrings eds.).  Academic Press, Elsevier. Pp. 73-110.

  P.G. Tillman, H.A. Smith and J.M. Holland, 2012.  Cover crops and related methods for enhancing agricultural biodiversity and conversation biocontrol:  successful case studies in Biodiversity and insect pests:  key issues for sustainable management (G.M. Curr, S.D. Wratten, W.E. Snyder, and D.M.Y. Read, eds.).  John Wiley and Sons Ltd. pp. 209-327.

  Smith, H.A. 2008. Habitat manipulation for the conservation of natural enemies, in Encyclopedia of Pest Management (D. Pimentel ed.).  Taylor and Francis. USA.

  Smith, H.A. 2004. Organic agriculture in Encyclopedia of Entomology (J.L. Capinera, ed.).  Kluwer Academic Press. pp. 2686-2689.

  Smith, H.A. 2004. Crop diversity and pest management in Encyclopedia of Entomology. (J.L. Capinera, ed.). Kluwer Academics Press. pp. 1109-1111.

  Refereed Proceedings

  Smith, H. A.  2009.  Ecological management of arthropod pests of horticultural crops: lessons from the Central Coast of California.  Abstract, HortScience, 44: 990.

  Smith, H. A., and R. McSorley.  2002.  Effect of short-term cattle grazing on soil arthropod communities in a southern Florida pasture.  Soil Crop Science Society of Florida, Proceedings 61: 33-36.