John Tooker, Ph.D.

Current Graduate Students:

Eric Bohenblust, PhD student

Ian Grettenberger, PhD student

Maggie Douglas, MS student

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

Tooker, J. F, Peiffer M., D. S. Luthe, and G. W. Felton. Trichomes as sensors: detecting activity on the leaf surface. Plant Signaling & Behavior (in press).

Peiffer M., J. F. Tooker, D. S. Luthe, and G. W. Felton. 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(7):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 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.