Kelli Hoover, Ph.D.

Current Graduate Students

• Rachel McLaughlin, MS student, co-advised by Dr. Christina Grozinger. Rachel studies insect pollination of wild black cherry.
• Jon Elmquist, MS student, co-advised by Dr. David Biddinger. Jon is investigating impacts of insecticides used for spotted lanternfly control on non-target insects, such as pollinators and biocontrol agents.
• Anne Johnson, PhD student. Anne is exploring sequestration of toxins from the preferred host tree of heaven by spotted lanternfly and implications for predator-prey interactions.

Postdoctoral Scholars

• Dr. Charlie Mason: plant-insect-microbe interactions
• Dr. Joe Keller: spotted lanternfly population dynamics
• Dr. Karolina Szymona: development of novel modifications of radio frequency technology for sanitizing wood packaging materials used in international trade.

Technicians

• David Long
• Lizz Wagner

Department Focus Area

Spotted lanternfly biology and ecology, insect microbial symbioses, tritrophic interactions, invasive species in forest systems, pollinators of forest trees, methods to exclude invasive species in wood products

Research Interests

Chemical ecology: Plant-insect-symbiont/pathogen interactions

Invasive species: Biology, ecology, and population dynamics of spotted lanternfly in forest systems

Pollination ecology: Pollination deficiency of black cherry in Pennsylvania forests

Teaching

The Insect Connection (World Campus)

Management of Insect Pests of Ornamentals

Research Activities & Interests:

1) Spotted lanternfly (SLF) is a recently introduced pest from Asia with a very broad host range, is rapidly spreading, and is a serious pest of grape, and numerous hardwood tree species in over 20 families. We are investigating: Host preferences and performance of different life stages of SLF among common hardwood trees in the landscape and forests; dispersal; sequestration of toxins and impacts on predators, methods to sample SLF populations to determine abundance and distribution in different habitats; and impacts of SLF feeding on host tree physiology.

2) Black cherry is a highly valuable forest tree in PA, but regeneration is in decline, especially in the Allegheny National Forest. We are characterizing the pollinator communities for black cherry and evaluating how habitat (biotic and abiotic factors) influences pollination and production of viable seed for regeneration.

4) To prevent invasive, exotic pests (insects, nematodes, and fungi) from moving around the world in wood packing materials and wood products, international regulations require these materials to be properly treated before they can be shipped out of the country of origin. As a member of the International Forestry Quarantine Research Group, an advisory body to the technical panels of the International Plant Protection Convention (IPPC) of the United Nations, I collaborate on research with industrial engineers and wood products scientists to improve efficacy and adoption of radio frequency (RF) technology as an alternative phytosanitary treatment to methyl bromide fumigation.  A cooperative research and development agreement with USDA APHIS and patents for innovations in RF technology are in process as we continue to work on refinements to the technology that reduce energy costs.

Selected Publications

Calvin, D. D., Keller, J., J. Rost, B. Walsh, D. Biddinger, Hoover, B. Treichler A. Johnson, and R. T. Roush. 2021. Spotted lanternfly (Hemiptera: Fulgoridae) nymph dispersion patterns and their influence on field experiments. J. Econ. Entomol., in revision.

Tan, C-W., M. Peiffer, A. Jones, J. G. Ali, R. J. Schilder, Hoover, C. Rosa, and G. W. Felton. 2021. Stung by a wasp: Multitrophic effects of a parasitoid in a non-permissive host. Nature Communications, in review.

Uyi, O., J.A. Keller, and Hoover. 2021. Performance and host association of spotted lanternfly (Lycorma delicatula) among common woody ornamentals. Sci. Reports., in revision.

Mason, C.J., Felton, 2021. Effects of maize (Zea mays) genotypes and microbial sources in shaping fall armyworm (Spodoptera frugiperda) gut bacterial communities. Sci. Reports https://doi.org/10.1038/s41598-021-83497-2.

Mason, C.J., K. Rubert-Nason, D. Long, R.L. Lindroth, J. Shi, and Hoover. 2021. Salicinoid phenolics reduce adult Anoplophora glabripennis (Cerambicidae: Lamiinae) feeding and egg production. Arthropod-Plant Interactions 15(1): 127-136.

Mason, C.J. A. St. Clair, M. Peiffer, E. Gomez, A. Jones, G.W. Felton and Hoover. 2020. Diet influences proliferation of gut bacterial populations in herbivorous caterpillars. PLoS ONE 15(3): e0229848. https://doi.org/10.1371/journal.pone.0229848.

Keller, J., J. Rost, K. Hoover, J. Urban, H. Leach, M. Porras, B. Walsh, M. Bosold^, and D. D. Calvin. 2020. Dispersion pattern and sample size estimates for spotted lanternfly, Lycorma delicatula (Hemiptera: Fulgoridae) egg masses. Environ. Entomol. 49(6): 1462-1472.

Keller, J.A., A.E. Johnson, O. Uyi, S. Wurzbacher, D. Long, and Hoover. 2020. Dispersal of Lycorma delicatula (Hemiptera: Fulgoridae) nymphs through contiguous, deciduous forest. Environ. Entomol., DOI: 10.1093/ee/nvaa107.

Uyi, Osariyekemwen, J. Keller, A. Johnson, D. Long, B. Walsh, and Hoover. 2020. Spotted lanternfly can complete development and oviposit without access to the preferred host, Ailanthus altissima. Environ. Entomol. DOI:10.1093/ee/nvaa083.

Paudel, S., P.A. Lin, K, Hoover, G.W. Felton and E.G. Rajotte. 2020. Asymmetric responses to climate change: Temperature differentially alters an herbivore salivary elicitor and host plant responses to herbivory. J. Chem. Ecol. DOI 10.1007/s10886-01201-6.

Trotter, R.T., S. Limbu, K. Hoover, H. Nadel and M.A. Keena. 2020. Region-specific agent-based phenology models for the Asian gypsy moth (Lymantria dispar asiatica and dispar japonica) in East Asia ports. Special Collection: Geospatial Analysis of Invasive Insects (J. Morisette and K. Macaluso, eds.). Annals of the ESA, https://doi.org/10.1093/aesa/saz037.

Mason, C.J., S. Ray, I. Shikano, M. Peiffer, A.G. Jones, D.S. Luthe, K. Hoover and G.W. Felton. 2019. Plant defenses interact with insect enteric bacteria by initiating a leaky gut syndrome. PNAS 116(32): 15991-15996.

Tan, C-W, M. Peiffer, K. Hoover, C. Rosa and G.W. Felton. 2019. Parasitic wasp mediates plant perception of insect herbivores. J Chem. Ecol. https://doi.org/10.1007/s10886-019-01120-1.

Pan, Q., I. Shikano, G.W. Felton, T-X. Liu, and K. Hoover. 2020. Host permissiveness to baculovirus influences time-dependent immune responses and fitness costs. Insect Science https://DOI:10.1111/1744-7917.12755.

Jones, A.G., K. Hoover, K. Pearsons, J.F. Tooker, and G.W. Felton. 2019. Potential impacts of translocation of neonicotinoid insecticides to cotton (Gossypium hirsutum [Malvales: Malvaceae]) extrafloral nectar on parasitoids. Entomol. DOI: 10.1093/ee/nvz157.

Mason, C.J., S. Ray, I. Shikano, M. Peiffer, A.G. Jones, D.S. Luthe, K. Hoover and G.W. Felton. 2019. Plant defenses interact with insect enteric bacteria by initiating a leaky gut syndrome. PNAS 116(32): 15991-15996. (PDF)

Tan, C-W, M. Peiffer, K. Hoover, C. Rosa and G.W. Felton. 2019. Parasitic wasp mediates plant perception of insect herbivores. J Chem. Ecol. https://doi.org/10.1007/s10886-019-01120-1.

Jones, A.G., K. Hoover, K. Pearsons, J.F. Tooker, and G.W. Felton. 2019. Potential impacts of translocation of neonicotinoid insecticides to cotton (Gossypium hirsutum [Malvales: Malvaceae]) extrafloral nectar on parasitoids. Environ. Entomol. DOI: 10.1093/ee/nvz157. (PDF)

Hoover, K. 2019. Editorial overview: Insect behavior and parasites: From manipulation to self-medication. Current Opinion in Insect Science 33: vi-viii.

Hoover, K. (guest ed.). 2019. Behavioural Ecology: Insect behavior and parasites: From manipulation to self-medication. Current Opinion in Insect Science 33: 1-69 (Denlinger and Casas, eds.). (PDF)

Pan, Q., I. Shikano, K. Hoover, T-X Liu, G.W. Felton. 2019. Pathogen-mediated tritrophic interactions: Baculovirus-challenged caterpillars induce higher plant defenses than healthy caterpillars. J. Chem. Ecol. 45: 515-524. (PDF)

Hall, L., A.J. Myrick, F. Graves, K. Hoover and T. Baker. 2019. Labial and maxillary palp recordings of the Asian longhorned beetles, Anoplophora glabripennis, reveal olfactory and hygroreceptive capabilities. J. Insect Physiol., https://doi.org/10.1016/j.jinsphys.2019.103905. (PDF)

Mason, C.J., D. Long, R. Lindroth and K. Hoover. 2019. Asymmetric utilization of host plants by adult and juvenile conspecific cerambycids is related to intra-plant variation in chemical defenses and resource partitioning. J Animal Ecology.

Mason, C.J., A.M. Campbell, E.D. Scully and K. Hoover. 2018. Bacterial and fungal midgut community dynamics and transfer between mother and brood in the Asian longhorned beetle (Anoplophora glabripennis), an invasive xylophage. Microbial Ecology 77: 230-242. (PDF)

Pan, Q., I. Shikano, K. Hoover, T.-X. Liu, and G.W. Felton. 2018. Enterobacter ludwigii, isolated from the gut microbiota of Helicoverpa zea, promotes tomato plant growth and yield without compromising anti-herbivore defenses. Arthropod-Plant Interactions 13: 271-278. (PDF)

Shikano, I., Q. Pan, K. Hoover, and G.W. Felton. 2018. Herbivore-induced defenses in tomato plants enhance the lethality of the entomopathogenic bacterium, Bacillus thuringiensis var. kurstaki. J. Chem Ecol. 44: 946-956. (PDF)

Shikano, I., E.M. McCarthy, J.M. Slavicek and K. Hoover. 2018. Jasmonic acid-induced plant defenses delay caterpillar developmental resistance to a baculovirus: Slow-growth, high-mortality hypothesis in plant–insect–pathogen interactions, J. Invertebr. Pathol. 158: 16-23. (PDF)

Wang, J., M. Yang; Y. Song; F.E. Acevedo; K. Hoover; R. Zeng; G.W. Felton. 2018. Gut-associated bacteria of Helicoverpa zea indirectly trigger plant defenses in maize. J Chem Ecol 44: 690-699. (PDF)

Tan, C.-W., M. Peiffer, K. Hoover, C. Rosa, F. E. Acevedo, G. W. Felton. 2018. Symbiotic polydnavirus of a parasite manipulates caterpillar and plant immunity. PNAS 201717934; DOI: 10.1073/pnas.171793411. (PDF)

Hoover, K., M. Grove, M. Gardner, D.P. Hughes, J. McNeil and J. Slavicek. 2011. A gene for an extended phenotype. Science 333: 1401-1401. (Reviewed by Faculty of 1000) (PDF)