John Tooker Ph.D.

Current Graduate Students:

Eric Bohenblust, PhD student

• EPA STAR Graduate Fellowship
• College of Agricultural Sciences Graduate Student Competitive Grant recipient

Ian Grettenberger, PhD student

• USDA NIFA Graduate Fellowship recipient
• USDA NE-SARE Graduate Fellowship recipient
• Sigma Xi Grant-in-Aid of Research recipient

Maggie Douglas, PhD student

• USDA NE-SARE Graduate Fellowship recipient
• Asa Fitch Memorial Award for Best Masters Student, Eastern Branch of the Entomological Society of America, 2012
• Sigma Xi Grant-in-Aid of Research recipient

Anjel Helms, PhD student (Ecology Program; co-advised with Mark Mescher)

• NSF Graduate Fellowship recipient

Anthony Vaudo, PhD student (co-advised with Christina Grozinger)

• Sigma Xi Grant-in-Aid of Research recipient

Departmental Focus Areas:

Chemical Ecology
Ecological Applications

Research:

Insect-plant interactions in agricultural systems, chemical ecology, induced host-plant defenses, natural-enemy ecology, tritrophic interactions, gall-inducing insects

Relevant Publications:

Helms AM, De Moraes CM, Tooker JF, Mescher MC. 2013. Exposure of Solidago altissima plants to volatile emissions of an insect antagonist (Eurosta solidaginis) deters subsequent herbivory. Proceedings of National Academy of Science USA 110: 199-204. DOI: 10.1073/pnas.1218606110

Shoffner AV, Tooker JF. 2013. The potential of genotypically diverse cultivar mixtures to moderate aphid populations in wheat (Triticum aestivum L.). Arthropod-Plant Interactions 7: 33-43.  (Shoffner was an undergraduate Honors student in the lab.)

Tooker JF, Frank SD. 2012. Genotypically diverse cultivar mixtures for insect pest management and increased crop yields. Journal of Applied Ecology 49:974-985. doi: 10.1111/j.1365-2664.2012.02173.x.

Kim J, Tooker JF, Luthe DS, De Moraes CM, Felton GW 2012. Insect eggs can enhance wound response in plants: a study system of tomato Solanum lycopersicum L. and Helicoverpa zea Boddie. PLoS ONE 7(5): e37420. doi:10.1371/journal.pone.0037420

Tian, D., Tooker, J. F., Peiffer, M., Chung, S., and G. W. Felton. 2012. Role of trichomes in defense against herbivores: Comparison of herbivore response to woolly and hairless trichome mutants in tomato (Solanum lycopersicum). Planta in press.

Tian, D, M. Peiffer, E. Shoemaker, J. Tooker, E. Haubruge, E. Francis, D. S. Luthe, and G. W. Felton. 2012. Salivary glucose oxidase from caterpillars mediates the induction of rapid and delayed-induced defenses in the tomato plant  PLoS ONE 7(4): e36168. doi:10.1371/journal.pone.0036168.

Frost, C. J., Smyers E. C., Dean J. M., Mescher M. C, Carlson, J. E., De Moraes C. M., and J. F. Tooker. 2012. A petiole-galling insect herbivore decelerates leaf lamina litter decomposition rates. Functional Ecology 26: 628–636. DOI: 10.1111/j.1365-2435.2012.01986.x

Cui, L.L., F. Francis, Y. Liu, S. Heuskin, G. Lognay, J. Dong, J. Chen, C. Bragard, J. F. Tooker, and Y. Liu. 2012. E-β-Farnesene syngergizes the influence of an insecticide to improve control of cabbage aphids in China. Crop Protection 35: 91–96.

Douglas, M. R. and J. F. Tooker. 2012. Slug (Mollusca: Agriolimacidae, Arionidae) ecology and management in no-till field crops, with an emphasis on the Mid-Atlantic region. Journal of Integrated Pest Management 3: C1-C9.

Graham, E E., J. F. Tooker, and L. M. Hanks. 2012. Floral host plants of adult beetles of central Illinois. Annals of the Entomological Society of America 105: 287-297.

Wang, G., L. L. Cui, J. Dong, F. Francis, Y. Liu, and J. F. Tooker. 2011. Combining intercropping with semiochemical releases: optimisation of alternative control of Sitobion avenae in wheat crops in China.  Entomologia Experimentalis et Applicata 140: 189-195.

Kluger, E. C., S. H. Berlocher, L. M. Hanks, and J. F. Tooker. 2011. Consequences of habitat fragmentation for the prairie-endemic weevil Haplorhynchites aeneus. Environmental Entomology 40: 1388-1396.

Tooker, J. F. and C. M. De Moraes. 2011. Feeding by Hessian fly (Mayetiola destructor [Say]) larvae increases levels of fatty acids and indole-3-acetic acid, but not hormones involved in plant-defense signaling. Journal of Plant Growth Regulation 30: 158-165.

Tooker, J. F. and C. M. De Moraes. 2011. Feeding by a gall-inducing caterpillar species increases levels of indole-3-acetic and decreases abscisic acid in Solidago altissima stems. Arthropod-Plant Interactions 5: 115-124.

Onstad, D. W., P. D. Mitchell, T. M. Hurley, J. G. Lundgren, R. P. Porter, C. H. Krupke, J. L. Spencer, C. D. DiFonzo, T. S. Baute, R. L. Hellmich, L.  Buschman, W. D. Hutchison, J. F. Tooker. 2011. Seeds of change: Corn seed mixtures for resistance management and IPM. Journal of Economic Entomology 104: 343-352.

Tooker, J. F., and Fleischer, S. J. 2010. First report of western bean cutworm (Striacosta albicosta) in Pennsylvania. Online. Crop Management doi:10.1094/CM-2010-0616-01-RS.

Tooker, J. F, Peiffer M., D. S. Luthe, and G. W. Felton. 2010. Trichomes as sensors: detecting activity on the leaf surface. Plant Signaling & Behavior 5:73-75. 

Peiffer M., J. F. Tooker, D. S. Luthe, and G. W. Felton. 2010. Plants on early alert: glandular trichomes as sensors for insect herbivores.  New Phytologist 184:644-656.

Tooker, J. F. and C. M. De Moraes. 2009. A gall-inducing caterpillar species increases essential fatty acid content of its host plant without concomitant increases in phytohormone levels. Molecular Plant-Microbe Interactions 22(5): 551-559.

Tooker, J. F. and C. M. De Moraes. 2008. Gall insects and indirect plant defenses: a case of active manipulation? Plant Signaling & Behavior. 3:79-80.

Tooker, J. F., J. R. Rohr, W. G. Abrahamson, and C. M. De Moraes. 2008. Gall insects can evade and alter indirect plant defenses. New Phytologist 178: 657671.

Tooker, J. F. and C. M. De Moraes. 2007. Feeding by Hessian fly [Mayetiola destructor (Say)] larvae does not induce plant indirect defences. Ecological Entomology 32:153-161.

Tooker, J. F. and C. M. De Moraes. 2007. Jasmonate, salicylate, and benzoate in insect eggs. Journal of Chemical Ecology 33:331-343.

Tooker, J.F., and C.M. De Moraes. 2006. Jasmonate in lepidopteran larvae. Journal of Chemical Ecology 32: 2321-2326.

Tooker, J.F., and L.M. Hanks.2006. Tritrophic interactions influence reproduction of prairie perennials (Asteraceae: Silphium). Environmental Entomology 35: 537-545.

Tooker, J.F., M. Hauser, and L.M. Hanks. 2006. Floral host plants of syrphidae and tachinidae (Diptera) of central Illinois. Annals of the Entomological Society of America 99: 96-112.

Tooker, J.F. and C.M. De Moraes. 2005. Jasmonate in lepidopteran eggs and neonates. J. Chem. Ecol. 31: 2753-2759.

Ellis, J.A., A.D. Walter, J.F. Tooker, M.D. Ginzel, P.F. Reagel, E.S. Lacey, A.B. Bennett, E.M. Grossman, and L.M. Hanks. 2005. Conservation biological control in urban landscapes: Manipulating parasitoids of bagworm (Lepidoptera: Psychidae) with flowering forbs. Biological Control 34: 99-107.

Tooker, J.F., A. L.Crumrin, and L.M. Hanks. 2005. Plant volatiles are behavioral cues for adult females of the gall wasp Antistrophus rufus. Chemoecology 15: 85-88.

Tooker, J. F., and L. M. Hanks. 2004. Endophytic insect communities of two prairie perennials (Asteraceae: Silphium spp.). Biodiversity and Conservation 13: 2551-2566.

Tooker, J. F., and L. M. Hanks. 2004. Impact of prescribed burning on endophytic insect communities of prairie perennials (Asteraceae: Silphium spp.). Biodiversity and Conservation 13: 1875-1888.

Tooker, J. F., A. R. Deans, and L. M. Hanks. 2004. Description of the Antistrophus rufus (Hymenoptera: Cynipidae) species complex, including two new species. Journal of Hymenoptera Research 13: 125-133.

Tooker, J. F., and L. M. Hanks. 2004. Trophic position of the endophytic beetle Mordellistena aethiops Smith (Coleoptera: Mordellidae). Environmental Entomology 33: 291-296.

Tooker, J. F., and L. M. Hanks. 2004. Stereochemistry of host plant monoterpenes as mate location cues for the gall wasp Antistrophus rufus. Journal of Chemical Ecology 30: 473-477."

Favret, C., J. F. Tooker, and L. M. Hanks. 2004 Iowana frisoni Hottes (Hemiptera: Aphididae) redescribed, with notes on its biology. Proceedings of the Entomological Society of Washington 106: 26-34.

Tooker, J. F., W. A. Koenig, and L. M. Hanks. 2002. Altered host plant volatiles are proxies for sex pheromones in the gall wasp Antistrophus rufus. Proceedings of National Academy of Science USA 99: 15486-15491.

Tooker, J. F., P. F. Reagel, and L. M. Hanks. 2002. Nectar sources of day-flying Lepidoptera of central Illinois. Annals of the Entomological Society of America 95: 84-96.

Tooker, J. F., and L. M. Hanks. 2000. Influence of plant community structure on natural enemies of pine needle scale (Homoptera: Diaspididae) in urban landscapes. Environmental Entomology 29: 1305-1311.

Tooker, J. F., and L. M. Hanks. 2000. Flowering plant hosts of adult hymenopteran parasitoids of central Illinois. Annals of the Entomological Society of America 93: 580-588.