Shimat V. Joseph Associate Professor Entomology
Portrait of Shimat V. Joseph
Contact Information 770-228-7312

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Portrait of Shimat V. Joseph

Research and Extension

My research addresses existing, emerging, and invasive pest management issues of turfgrass and ornamentals, along with the principles of applied insect ecology. Research projects aim to enhance our understanding of the biology of the pest and beneficial species to develop and refine monitoring and management strategies. The major thrust is developing management tactics that would reduce the impact on the environment and non-targets. My extension program promotes the adoption of integrated pest management principles driven by lab and field studies.


Turf and Ornamental IPM

Turf and Ornamental Pest Management Blog


Graduate Students

Zia Williamson (MS student), (co-advisosr Dr. Brett Blaauw),
Mahesh Ghimire (MS student),
Rehan Arshad (MS student),
Robert Wolverton (Ph.D. student),
Oluwatomi (Daniel) Ibiyemi (Ph.D. student) (co-advisor Dr. David Jespersen),

Past Lab Members

Fawad Khan (Ph.D.), 2018-2021
Midhula Gireesh (Ph.D.), 2018-2021
Alejandra Monterrosa (MS), 2019-2021
Ryan Lewis (MPPPM), 2019-2021
Gurjit Singh (MS), 2018-2020
Caleb Julian (Technician), 2018-2020

Lab Technician

Christopher Bryant Hardin,


Joseph, S. V.  2022. Effects of insect growth regulators on ambrosia beetles (Coleoptera: Curculionidae). J. Entomol. Sci. (in press).

Gireesh, M.*, and S. V. Joseph. 2022. A survey on major insect pests and management practices adopted by the commercial turfgrass industry. J. Entomol. Sci. (in press).

Joseph, S. V., and C. B. Hardin*. 2022. Bees forage on bahiagrass spikelets. Florida Entomol. (in press).

Joseph, S. V., and M. Bolda. 2022. Role of Lygus hesperus (Hemiptera: Miridae) adult feeding on deformation of blackberry fruits. J. Entomol. Sci. (in press).

Gireesh, M.*, and S. V. Joseph. 2021. Influence of abiotic factors on walking behavior of hunting billbugs (Coleoptera: Curculionidae). J. Econ. Entomol. toab217,

Khan, F. Z. A.*, S. A. Manzoor, M. Akmal, M. U. Imran, M. Taqi, S. A. Manzoor, M. Lukac, and S. V. Joseph. 2021. Drivers of farmers’ intention to adopt integrated pest management: a case study of vegetable farmers in Pakistan. Ecosphere. 12: e03812.

Khan, F. Z. A.*, and S. V. Joseph. 2021. Influence of the color, shape, and size of the clay model on arthropod interactions in turfgrass. J. Insect Sci. 21:15,

Monterrosa, A.*, F. B. Iriarte, M. Paret, and S. V. Joseph. 2021. Effects of relative humidity on the vector of rose rosette disease, Phyllocoptes fructiphilus, and disease symptoms. Florida Entomol. 104: 173-177.

Joseph, S. V. 2021. Transovarial effect of novaluron: Persistence and residual effects on Stephanitis pyrioides (Hemiptera: Tingidae). Can. Entomol. 153: 702 – 713. DOI:

Joseph, S. V., R. Wolverton*, and J-H. Chong. 2021. Efficacy of selected insecticides in reducing rhodesgrass mealybug abundance on golf course greens. J. Agri. Urban Entomol. 37: 10-21.

Joseph, S. V., and S. T. Koike. 2021. Could broccoli and cauliflower influence the dispersal dynamics of western flower thrips (Thysanoptera: Thripidae) to lettuce in the Salinas Valley of California? Environ. Entomol. 50: 995–1005.

Monterrosa, A.*, A. L. Acebes, B. Blaauw, S. V. Joseph. 2021. Effects of trap, and ethanol lure type and age on attraction of ambrosia beetles (Coleoptera: Curculionidae). J. Econ. Entomol. 114: 1647–1654.

Singh, G.*, C. Waltz, and S. V. Joseph. 2021. Potassium and nitrogen impacts on survival and development of fall armyworm (Lepidoptera: Noctuidae). J. Entomol. Sci. 56: 411-423.

Lewis, R. O.*, and S. V. Joseph. 2021. Transovarial effects of novaluron on sweet potato whitefly (Hemiptera: Aleyrodidae). J. Entomol. Sci. 56: 470-473.

Gireesh, M.*, J. P. Rijal, and S. V. Joseph. 2021. Spatial distribution of hunting billbugs (Coleoptera: Curculionidae) in sod farms. Insects. 12(5), 402.

Joseph, S. V., J-H. Chong, B. Campbell, B. Kunkel, D. Lauderdale et al. 2021. Current pest status and management practices for Systena frontalis (Coleoptera: Chrysomelidae) in ornamentals plants in the Eastern USA: An online survey. J. Integrated Pest Manage. 12: 17; 1–10 doi:10.1093/jipm/pmab012

Joseph, S. V., and D. Jespersen. 2021. Influence of relative humidity on the expression of twolined spittlebug (Hemiptera: Cercopidae) feeding injury to turfgrass genotypes. Arthropod-plant interact. 15: 197-207. 10.1007/s11829-021-09808-6

Gireesh, M.*, and S. V. Joseph. 2021. Surface movement of billbugs (Coleoptera: Curculionidae) in harvested and nonharvested sod. J. Econ. Entomol. 114: 231–237.

Khan, F.*, and S. V. Joseph. 2021. Characterization of impressions created by turfgrass arthropods on clay models. Entomol. Exp. Appl. 169: 508-518.

Mineo, E. C., A. Gazula, S. V. Joseph. 2020. Phenology of Anthonomus eugenii Cano in the central coast pepper-production region of California. Southwest Entomol. 45: 863-872.

Joseph, S. V., K. Harris-Shultz, and D. Jespersen. 2020. Evidence of pollinators foraging on centipedegrass inflorescences. Insects. 11: 795; doi:10.3390/insects11110795

Joseph, S. V., K. Harris-Shultz, D. Jespersen, B. Vermeer, and C. Julian. 2020. Incidence of bees and wasps in centipedegrass lawns in Georgia. J. Entomol. Sci. 55: 547-559.

Joseph, S. V. 2020. Effect of afidopyropen against Myzus persicae (Hemiptera: Aphididae) and its predator, Adalia bipunctata (L.) in the greenhouse. J. Entomol. Sci. 55: 584-587.

Singh, G.*, S. V. Joseph, B. M. Schwartz. 2020. Screening newly developed bermudagrasses for host plant resistance against fall armyworm (Lepidoptera: Noctuidae). HortScience.

Joseph, S. V., and S. Iudice. 2020. Evaluation of seedling tray drench of insecticides for cabbage maggot (Diptera: Anthomyiidae) management in broccoli and cauliflower. Florida Entomol. 103: 172-179.

Gireesh, M.*, and S. V. Joseph. 2020. Seasonal occurrence and abundance of billbugs (Coleoptera: Curculionidae) in Georgia sod farms. J. Econ. Entomol. 113: 2319–2327. doi: 10.1093/jee/toaa133.

Khan, F. Z. A.*, S. A. Manzoor, M. Akmal, M. U. Imran, M. Taqi, S. A. Manzoor, M. Lukac, and S. V. Joseph. 2020. Modelling pesticide use intention in Pakistani farmers using expanded versions of the theory of planned behavior. Human and Ecological Risk Assessment.

Joseph, S. V. 2020. Ingestion of novaluron elicits transovarial activity in Stephanitis pyrioides (Hemiptera: Tingidae). Insects. 11(4), 216;  

Tillman, G., Toews, M., Blaauw, B., Sial, A, Cottrell, T., Talamas, E., Buntin, D., Joseph, S., Balusu, R., Fadamiro, H., and Lahiri, S. 2020. Parasitism and predation of sentinel eggs of the invasive brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) in the southeastern USA. Biological Control. 145, 104247.

Joseph, S. V. 2020. Repellent effects of insecticides on Stephanitis pyrioides (Hemiptera: Tingidae) under laboratory conditions. Crop Prot. 127, 104985.

Joseph, S. V. 2019. Transovarial effects of insect growth regulator on Stephanitis pyrioides (Hemiptera: Tingidae). Pest Manag. Sci. doi: 10.1002/ps.5342.

Joseph, S. V. 2019. Influence of insecticides on Stephanitis pyrioides (Hemiptera: Tingidae) eggs and young nymphs. Insects.10, 189;

Grettenberger, I. M., and S. V. Joseph. 2019. Influence of starvation on walking behavior of Bagrada hilaris (Hemiptera: Pentatomidae). PLOS one 14(4): e0215446.

Joseph, S. V. 2019. Impact of Lygus hesperus (Hemiptera: Miridae) feeding and oviposition injury on lettuce. Plant Health Prog. 20: 215-219.

Joseph, S. V. 2019. Seed treatment with clothianidin reduces Bagrada hilaris (Hemiptera: Pentatomidae) damage to crucifers. J. Entomol. Sci. 54: 319-324.

Bergh, J. C., S. V. Joseph, B. D. Short, M. Nita, and T. C. Leskey. 2019. Effect of pre-harvest exposures to adult Halyomorpha halys (Hemiptera: Pentatomidae) on feeding injury to apple cultivars at harvest and during post-harvest cold storage. Crop Prot. 124:

Joseph, S. V. and J. P. Rijal. 2019. Walking capacity of Lygus hesperus (Hemiptera: Miridae) fifth instars in the laboratory and outdoor. Southwest. Entomol.44: 403-408.

Joseph, S. V., and M. Bolda. 2018. Influence of insecticides on oviposition behavior of western tarnished plant bug on strawberry. Ameri. J. Entomol. 2: 36-41. doi: 10.11648/j.aje.20180204.11

Joseph, S. V., and M. Bolda. 2018. Evaluating the potential utility of an electrostatic sprayer and a tractor-mounted vacuum machine for Lygus hesperus (Hemiptera: Miridae) management in California's coastal strawberry. Crop Prot. 113: 104-111.

Joseph S. V. 2018. Lethal and sublethal effects of organically approved insecticides against Bagrada hilaris (Hemiptera: Pentatomidae). J. Entomol. Sci. 53: 307-324.

Joseph S. V. 2018. Repellent effects of insecticides against Protaphorura fimata (Collembola: Poduromorpha: Onychiuridae). J. Econ. Entomol. 111: 747–754.

Joseph S. V. and A. G. Taylor. 2017. Effect of insecticide-coated seeds on Protaphorura fimata (Collembola: Poduromorpha: Onychiuridae) feeding damage. J. Entomol. Sci. 52: 463-467.

Joseph S. V. 2017. Effects of insect growth regulators on Bagrada hilaris (Hemiptera: Pentatomidae). J. Econ. Entomol. 110: 2471-2477. doi: 10.1093/jee/tox264.

Joseph, S. V. 2017. Repellent effects of essential oils on adult Bagrada hilaris by using an olfactometer. Southwest. Entomol. 42: 719–724.

Joseph S. V., L. D. Godfrey, and C. Bettiga. 2017. Influence of interval between post-harvest lettuce residue management and subsequent seeding of broccoli on cabbage maggot (Diptera: Anthomyiidae) infestation on broccoli. J. Econ. Entomol. 110: 2172–2179.

Joseph S. V., I. M. Grettenberger, and L. D. Godfrey. 2017. Damage by Bagrada hilaris (Hemiptera: Pentatomidae) adults on germinating stages of arugula seed in a choice test. J. Entomol. Sci. 52: 468-471.

Joseph S. V., I. M. Grettenberger, L. D. Godfrey, D. Zavala, and E. G. Bejarano. 2017. Effects of induced starvation on Bagrada hilaris (Hemiptera: Pentatomidae) survival. J. Entomol. Sci. 52: 216-228.

Joseph, S. V. 2017. Effects of insecticides on Protaphorura fimata (Collembola: Poduromorpha: Onychiuridae) feeding on germinating lettuce. J. Entomol. Sci. 52: 68-81.

Joseph, S. V., I. Grettenberger, and L. Godfrey. 2017. Susceptibility of germinating cruciferous seeds to Bagrada hilaris (Hemiptera: Pentatomidae) feeding injury. Arthropod Plant Interact. 11: 577–590.

Joseph, S. V., T. Martin, K. Steinmann, and P. Kosina. 2017. Outlook of pyrethroid insecticides for pest management in the Salinas Valley of California. J. Integrated Pest Management. 8 (1): 6. doi: 10.1093/jipm/pmx001.

Joseph, S. V. 2017. Influence of plant age, temperature, and moisture on Protaphorura fimata feeding injury on lettuce in the Salinas Valley of California, USA. Entomol. Exp. Appl.  162: 69–76.

Bergh, J. C., W. R. Morrison III, S. V. Joseph, and T. C. Leskey. 2017. Characterizing spring emergence of adult Halyomorpha halys (Hemiptera: Pentatomidae) using experimental overwintering shelters and commercial pheromone traps. Entomol. Exp. Appl.  DOI: 10.1111/eea.12539.

Joseph, S. V., and M. Bolda. 2016. Efficacy of insecticides against Lygus hesperus Knight (Hemiptera: Miridae) in the California’s Central Coast strawberry. Int. J. Fruit Sci. 16: 178-187.

Joseph, S. V. 2016. Timing of insecticide application for cabbage maggot (Diptera: Anthomyiidae) control in seeded turnip in Central Coast of California. Southwest. Entomol. 41: 625-632.

Karp, D. S., R. Moses, S. Gennet, M. S. Jones, S. Joseph, L. K. M'Gonigle, L. C. Ponisio, W. E. Snyder and C. Kremen. 2016. Agricultural practices for food safety threaten pest control services for fresh produce. J. Appli. Ecol. 53: 1402–1412.

Joseph, S. V., I. Grettenberger, and L. Godfrey. 2016. Insecticides applied to soil of transplant plugs for Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae) management in broccoli. Crop Prot. 87: 68-77.

Joseph, S. V., R. Ahedo, and M. de la Fuente. 2016. Characterization of Lygus hesperus (Hemiptera: Miridae) feeding and oviposition injury on celery seedlings. Plant Health Prog. 17: 101-105.

Joseph, S.V., and C. Bettiga. 2016. Captures of Protaphorura fimata (Collembola: Poduromorpha: Onychiuridae) on beet and potato baits in the Salinas Valley of California. J. Entomol. Sci. 51: 79–86.

Joseph, S. V., E. R. Hoebeke, and J. V. McHugh. 2015. Rove beetles of the genus Aleochara Gravenhorst (Coleoptera: Staphylinidae) parasitizing the cabbage maggot, Delia radicum (L.) (Diptera: Anthomyiidae), in the northern Central Coast of California. Proc. Entomol. Soc. Wash. 117: 525-528.

Joseph, S. V., and J. Zarate. 2015. Comparing efficacy of insecticides against cabbage maggot (Diptera: Anthomyiidae) in the laboratory. Crop Prot. 77: 148-156.

Joseph, S. V. 2015. Effects of direct and indirect exposure of insecticides to garden symphylan (Symphyla: Scutigerellidae) in laboratory bioassays. J. Econ. Entomol. 108: 2729-2736.

Joseph, S. V., C. Bettiga, C. Ramirez, and F. N. Soto-Adames. 2015. Evidence of Protaphorura fimata (Collembola:Poduromorpha:Onychiuridae) feeding on germinating lettuce in the Salinas Valley of California. J. Econ. Entomol. 108: 228-236. 

Joseph, S. V., M. Nita, T. C. Leskey, and J. C. Bergh. 2015. Temporal effects on the incidence and severity of brown marmorated stink bug (Hemiptera: Pentatomidae) feeding injury to peaches and apples during the fruiting period in Virginia. J. Econ. Entomol. 108: 592-599.

Mayfield III, A. E., B. C. Reynolds, C. I. Coots, N. P. Havill, C. Brownie, A. R. Tait, J. L. Hanula, S. V. Joseph, and A. B. Galloway. 2015. Establishment, hybridization and impact of Laricobius predators on insecticide-treated hemlocks: Exploring integrated management of the hemlock woolly adelgid. Forest Ecology and Management 335: 1–10.

Joseph, S. V., J. Stallings, J. C. Bergh, T. C. Leskey, G. Krawczyk, D. Polk, and B. Butler. 2014. Spatial distribution of brown marmorated stink bug injury in mid-Atlantic States. J. Econ. Entomol. 107: 1839-1848.

Joseph, S. V. 2014. Effect of trap color in capture of bagrada bug, Bagrada hillaris (Hemiptera: Pentatomidae). J. Entomol. Sci. 49: 318-321.

Joseph, S. V., and J. Martinez. 2014. Incidence of cabbage maggot (Diptera: Anthomyiidae) infestation and plant damage in seeded Brassica fields in California's central coast. Crop Prot. 62: 72-78. 

Lee, D., B. Short, S. V. Joseph, J. C. Bergh, and T. C. Leskey. 2013. Biology, ecology and management of Halyomorpha halys (Stål) (Hemiptera:  Pentatomidae) in Asia.  Environ. Entomol. 42: 627-641.

Abraham, C., S. Brannon, S. V. Joseph, S. Nair, and C. Scocco.  2013.  Biological control of insects has no deleterious impacts on human health and agricultural food crops, while providing solutions to insect pest problems, and should not be discontinued.  American Entomologist. 59: 119.

Joseph, S. V., J. C. Bergh, S. E. Wright, and T. C. Leskey. 2013. Factors affecting captures of brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae) in baited pyramid traps. J. Entomol. Sci. 48: 43-51.

Gunter, C., S. V. Joseph, D. G. Riley, J. Walgenbach, and D. B. Langston. 2012. Host plant resistance to thrips-transmitted Tomato spotted wilt virus (Bunyaviridae: Tospovirus) in pepper. Subtropical Plant Science. 64:1-12.

Joseph, S. V., and S. K. Braman. 2012. Influence of turf taxa and insecticide type on survival of Geocoris spp. (Hemiptera: Geocoridae). J. Entomol. Sci. 47: 227-237.

Riley, D. G., S. V. Joseph, and R. Srinivasan. 2012. Temporal relationship of thrips populations to tomato spotted wilt incidence in tomato in the field.  J. Entomol. Sci.  47: 65-75.

Riley, D. G., S. V. Joseph, and R. Srinivasan. 2012. Reflective mulch and acibenzolar-S-methyl treatments relative to thrips (Thysanoptera: Thripidae) and Tomato spotted wilt virus incidence in tomato.  J. Econ. Entomol.  105: 1302-1310.

Joseph, S. V., S. K. Braman, and J. L. Hanula.  2011.  The range and response of neonicotinoids on hemlock woolly adelgid, Adelges tsugae (Hemiptera: Adelgidae).  J. Environ. Hort. 29: 197–204.

Joseph, S. V., J. L. Hanula, and S. K. Braman. 2011. Distribution and abundance of Adelges tsugae (Adelgidae) within hemlock crown.  J. Econ. Entomol. 104: 1918–1927.

Riley, D. G., S. V. Joseph, W. T. Kelley, S. Olson, and J. Scott. 2011. Host plant resistance to Tomato spotted wilt virus (Bunyaviridae: Tospovirus) in tomato. HortScience. 46:1626–1633.

Joseph, S. V., A. E. Mayfield III, M. Dulusky, C. Asaro, and C. W. Berisford. 2011. Phenology of the hemlock woolly adelgid (Hemiptera: Adelgidae) in northern Georgia. J. Entomol. Sci. 46: 315–324.

Joseph, S. V., J. L. Hanula, S. K. Braman, and F. J. Byrne. 2011.  Effects of fertilizer and low rates of imidacloprid on Adelges tsugae (Hemiptera: Adelgidae).  J. Econ. Entomol. 104: 868–878.

Riley, D. G., S. V. Joseph, R. Srinivasan, and S. Diffie. 2011. Thrips vectors of Tospoviruses. J. Integrated Pest Management. DOI: 10.1603/IPM10020.

Joseph, S. V., and S. K. Braman. 2011. Occurrence of hymenopteran parasitoids in residential turfgrass in central Georgia.  J. Entomol. Sci. 46: 1–13.

Joseph, S. V., S. K. Braman, and J. L. Hanula.  2011.  Effects of fertilizer on the four hemlock species resistance to Adelges tsugae (Adelgidae) and influence on predators.  J. Econ. Entomol. 104: 288–298.

Fuest, J., S. Nair, K. Reddy, and S. V. Joseph.  2010.  Current evaluation of genetically modified organisms (GMO’s) is adequate for human health and environmental.  American Entomologist 56: 111.

Joseph, S. V., and S. K. Braman.  2009b. Predatory potential of Geocoris spp. and Orius insidiosus (Say) on fall armyworm in resistant and susceptible turf.  J. Econ. Entomol. 102: 1151–1156.

Joseph, S. V., and S. K. Braman.  2009a. Influence of plant parameters on occurrence and abundance of arthropods in residential turfgrass.  J. Econ. Entomol. 102: 1116–1122.

* denotes Graduate students