Research Summary
Research interests include insect-plant interactions in agricultural systems, chemical ecology, induced host-plant defenses, natural-enemy ecology, tritrophic interactions and gall-inducing insects.
In the News
Research Keywords
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Recent Publications
Integrated pest management: State infrastructure status after 50 yr of Federal support (1973 to 2023)
Mueller, D. S., Iles, L. C., Pilcher, C. L., Sisson, A. J., Magarey, R., Adams, R., Almodovar, W. I., Alston, D., Beauzay, P., Bessin, R., Bish, M., Burrows, M., Calixto, A., Chandran, R., Colquhoun, J. B., Concklin, M., Dreves, A. J., Ellsworth, P. C., Esker, P. D. & Farrar, J. J. & 48 others, , 2025, In: Journal of Integrated Pest Management. 16, 1, 30.Research output: Contribution to journal › Article › peer-review
Two new species of Ormyrus Westwood (Hymenoptera: Ormyridae) from Cynipidae (Hymenoptera) galls on Silphium L. (Asteraceae: Heliantheae)
Nastasi, L. F., Davis, C. K., Alcorn, J. K., Frey, T. S., Hatfield, M. J., Hines, H. M., Tooker, J. F. & Deans, A. R., Mar 7 2025, In: Zootaxa. 5601, 2, p. 265-287 23 p.Research output: Contribution to journal › Article › peer-review
Acute toxicity of neonicotinoid insecticides to ground beetles (Coleoptera: Carabidae) from Pennsylvania
Pearsons, K. A. & Tooker, J. F., Jun 1 2025, In: Environmental entomology. 54, 3, p. 574-584 11 p.Research output: Contribution to journal › Article › peer-review
Insecticides may facilitate the escape of weeds from biological control
Rowen, E. K., Pearsons, K. A., Smith, R. G., Wickings, K. & Tooker, J. F., 2025, In: PeerJ. 13, 1, e18597.Research output: Contribution to journal › Article › peer-review
Feeding by slugs on maize imposes variable productivity costs but can induce compensatory growth under some conditions
Tooker, J. F., Boucher, M. T., Wallace, J. M. & Douglas, M. R., Dec 2025, In: Pest Management Science. 81, 12, p. 8419-8430 12 p.Research output: Contribution to journal › Article › peer-review
A Volatile Cue From a Specialist Herbivore Primes Gene Expression Against Biotic Stress in Tall Goldenrod (Solidago altissima L.)
Witkowski, R. J., Sudol, L. A., Yip, E. C., Tooker, J. F. & Renner, T., 2025, (Accepted/In press) In: Plant, Cell and Environment.Research output: Contribution to journal › Article › peer-review
An insect pheromone primes tolerance of herbivory in goldenrod plants
Yip, E. C., Mescher, M. C., De Moraes, C. M. & Tooker, J. F., Jan 2025, In: Ecology. 106, 1, e4486.Research output: Contribution to journal › Article › peer-review
Does a shift to a novel host plant create a defence-free space for a specialist herbivore species?
Yip, E. C., Iverson, A. L., Anderson, T. E., Carlson, S. G., Nash, L. W. & Tooker, J. F., Aug 2025, In: Functional Ecology. 39, 8, p. 2085-2095 11 p.Research output: Contribution to journal › Article › peer-review
Seasonal bee communities vary in their responses to resources at local and landscape scales: implication for land managers
Kammerer, M., Iverson, A. L., Li, K., Tooker, J. F. & Grozinger, C. M., May 2024, In: Landscape Ecology. 39, 5, 97.Research output: Contribution to journal › Article › peer-review
Vertical tillage effects on crop production and pest management in Pennsylvania
Lefever, A. M., Wallace, J. M., White, C. M., Duiker, S. W., Esker, P. D. & Tooker, J., Mar 1 2024, In: Agronomy Journal. 116, 2, p. 520-530 11 p.Research output: Contribution to journal › Article › peer-review
Illuminating patterns of firefly abundance using citizen science data and machine learning models
McNeil, D. J., Goslee, S. C., Kammerer, M., Lower, S. E., Tooker, J. F. & Grozinger, C. M., Jun 15 2024, In: Science of the Total Environment. 929, 172329.Research output: Contribution to journal › Article › peer-review
Catalog of Endophytic Insects Associated with Rosinweeds (Silphium L., Heliantheae, Asteraceae) in North America
Nastasi, L. F., Smith, C. N., Tooker, J. F. & Deans, A. R., 2024, In: Psyche: Journal of Entomology. 2024, 8464635.Research output: Contribution to journal › Review article › peer-review
Cryptic or underworked? Taxonomic revision of the Antistrophus rufus species complex (Cynipoidea, Aulacideini)
Nastasi, L. F., Tooker, J. F., Davis, C. K., Smith, C. N., Frey, T. S., Hatfield, M. J., Presnall, T. M., Hines, H. M. & Deans, A. R., May 21 2024, In: Journal of Hymenoptera Research. 97, p. 399-439 41 p.Research output: Contribution to journal › Article › peer-review
Comparative anatomy of venom glands suggests a role of maternal secretions in gall induction by cynipid wasps (Hymenoptera: Cynipidae)
Guiguet, A., Tooker, J. F., Deans, A. R., Mikó, I., Ning, G., Schweger, S. & Hines, H. M., Sep 1 2023, In: Insect Systematics and Diversity. 7, 5, 3.Research output: Contribution to journal › Article › peer-review
Extreme acidity in a cynipid gall: a potential new defensive strategy against natural enemies
Guiguet, A., McCartney, N. B., Gilbert, K. J., Tooker, J. F., Deans, A. R., Ali, J. G. & Hines, H. M., Mar 1 2023, In: Biology Letters. 19, 3, 20220513.Research output: Contribution to journal › Article › peer-review