John Tooker

Professor of Entomology

John Tooker

Huck Graduate Students

Huck Affiliations

Publication Tags

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Pollen Bees Lipids Proteins Nutrition Bombus Ecology Insecticide Pests Nutrients Zinc Plant Growth Regulators Galls Bee Neonicotinoid Pesticide Herbivory Seed Diet Arthropod Crop Seeds Foraging Soybeans Resource Host Plant

Most Recent Publications

Darin J. McNeil, Sarah C. Goslee, Melanie Kammerer, Sarah E. Lower, John F. Tooker, Christina M. Grozinger, 2024, Science of the Total Environment

Andrew Lefever, John M. Wallace, Paul Esker, Charles M. White, Charles White, Sjoerd W. Duiker, Sjoerd Duiker, Paul D. Esker, John Tooker, 2023, Journal of Production Agriculture on p. 520-530

M. L. Robinson, P. G. Hahn, B. D. Inouye, N. Underwood, S. R. Whitehead, K. C. Abbott, E. M. Bruna, N. I. Cacho, L. A. Dyer, L. Abdala-Roberts, W. J. Allen, J. F. Andrade, D. F. Angulo, D. Anjos, D Ansett, D. N. Anstett, R. Bagchi, S. Bagchi, M. Barbosa, S. Barrett, C. A. Baskett, E. Ben-Simchon, K. J. Bloodworth, K Blooworth, J. L. Bronstein, Y. M. Buckley, K. T. Burghardt, C. Bustos-Segura, E. S. Calixto, R. L. Carvalho, B. Castagneyrol, M. C. Chiuffo, D Cinoğlu, D. Cinolu, E. Cinto Mejía, M. C. Cock, R. Cogni, O. L. Cope, T. Cornelissen, D. R. Cortez, D. W. Crowder, C. Dallstream, W. Dáttilo, J. K. Davis, R. D. Dimarco, H. E. Dole, I. N. Egbon, M. Eisenring, A. Ejomah, B. D. Elderd, S. L. Hermann, M Endara, M Eubanks, M. F. Kersch-Becker, J. F. Tooker, S Everingham, K Farah, R Farias, A Fernandes, G Fernandes, M Ferrante, A Finn, G Florjancic, M Forister, Q Fox, E Frago, F França, A Getman-Pickering, Z Getman-Pickering, E Gianoli, B Gooden, M Gossner, K Greig, S Gripenberg, R Groenteman, P Grof-Tisza, N Haack, L Hahn, S Haq, A Helms, J Hennecke, S Hermann, L Holeski, S Holm, M Hutchinson, E Jackson, S Kagiya, A Kalske, M Kalwajtys, R Karban, R Kariyat, T Keasar, 2023, Science on p. 679–683

Antoine Guiguet, John Tooker, Andrew R. Deans, Istvan Miko, István Mikó, Gang Ning, Szabina Schweger, Szabina Schwéger, Heather M. Hines, 2023, Insect Systematics and Diversity on p. 3

Stephannie Seng, Gabriela E. Ponce, Peter Andreas, Anna Kisiala, Rosemarie De Clerck-Floate, Donald G. Miller, Ming Shun Chen, Peter W. Price, John F. Tooker, R. J.Neil Emery, Edward F. Connor, 2023, Insects

Michael J. Skvarla, John Tooker, Adriana Murillo-Williams, 2023, Coleopterists Bulletin on p. 28-31

Antoine Guiguet, Nathaniel McCartney, Kadeem Gilbert, John Tooker, Andrew Deans, Jared Gregory Ali, Heather M. Hines, 2023, Biology Letters on p. 20220513–20220513

Brian Kunkel, William J. Cissel, John F. Tooker, Dana K. Howe, Dee R. Denver, Rory J. Mc Donnell, Ivan Hiltpold, 2023, Agronomy

The effect of zinc fertilizer on maize growth, leaf mineral nutrition, and caterpillar herbivory

Elizabeth K. Rowen, John F. Tooker, 2022, Arthropod-Plant Interactions on p. 525-535

Chad T. Nihranz, Anjel M. Helms, John F. Tooker, Mark C. Mescher, Consuelo M. De Moraes, Andrew G. Stephenson, 2022, PLoS One

Most-Cited Papers

A framework for evaluating ecosystem services provided by cover crops in agroecosystems

Meagan E. Schipanski, Mary Barbercheck, Margaret R. Douglas, Denise M. Finney, Kristin Haider, Jason P. Kaye, Armen R. Kemanian, David A. Mortensen, Matthew R. Ryan, John Tooker, Charlie White, 2014, Agricultural Systems on p. 12-22

Large-scale deployment of seed treatments has driven rapid increase in use of neonicotinoid insecticides and preemptive pest management in U.S. Field crops

Margaret R. Douglas, John F. Tooker, 2015, Environmental Science & Technology on p. 5088-5097

Kevin B. Rice, Chris J. Bergh, Erik J. Bergmann, Dave J. Biddinger, Christine Dieckhoff, Galen Dively, Hannah Fraser, Tara Gariepy, George Hamilton, Tim Haye, Ames Herbert, Kim Hoelmer, Cerruti R. Hooks, Ashley Jones, Greg Krawczyk, Thomas Kuhar, Holly Martinson, William Mitchell, Anne L. Nielsen, Doug G. Pfeiffer, Michael J. Raupp, Cesar Rodriguez-Saona, Peter Shearer, Paula Shrewsbury, P. Dilip Venugopal, Joanne Whalen, Nik G. Wiman, Tracy C. Leskey, John F. Tooker, 2014, Journal of Integrated Pest Management

Anthony Vaudo, John F. Tooker, Christina M. Grozinger, Harland M. Patch, 2015, Current Opinion in Insect Science on p. 133--141

Anthony D. Vaudo, Harland M. Patch, David A. Mortensen, John F. Tooker, Christina M. Grozinger, 2016, Proceedings of the National Academy of Sciences of the United States of America on p. E4035-E4042

Margaret R. Douglas, Jason R. Rohr, John F. Tooker, 2015, Journal of Applied Ecology on p. 250-260

Anthony Vaudo, John Tooker, Harland M. Patch, David J. Biddinger, Michael Coccia, Makaylee Crone, Mark Fiely, Jacob Francis, Heather M. Hines, Mackenzie Hodges, Stephanie Jackson, Denis Michez, Junpeng Mu, Laura Russo, Maliheh Safari, Erin Treanore, Maryse Vanderplanck, E Yip, Anne Leonard, Christina M. Grozinger, 2020, Insects on p. 132

Phytohormone Dynamics Associated with Gall Insects, and their Potential Role in the Evolution of the Gall-Inducing Habit

John F. Tooker, Anjel M. Helms, 2014, Journal of Chemical Ecology on p. 742-753

Herbicide drift can affect plant and arthropod communities

J. Franklin Egan, Eric Bohnenblust, Sarah Goslee, David Mortensen, John Tooker, 2014, Agro-Ecosystems on p. 77-87

A. D. Vaudo, D. Stabler, H. M. Patch, J. F. Tooker, C. M. Grozinger, G. A. Wright, 2016, Journal of Experimental Biology on p. 3962--3970

News Articles Featuring John Tooker

Firefly populations at risk due to climate change, urban development

Catching fireflies is an iconic summer experience for many people living in North America, but the flickering beetles are on the decline. New research has identified factors that may be contributing to declining populations.

Robert Miller: Environmentalists renew fight to limit use of neonicotinoids in CT

About neonicotinoids and why/how to limit the usage

Grants awarded to Penn State faculty for tropical ecosystems research in Belize

Three projects have been awarded seed grants as part of the Penn State-Belize Foundation for Research and Environmental Education Research and Education Initiative to develop agroforestry systems .

Why are snails and slugs so slow?

Wander through your backyard or walk along a stream and it’s likely you’ll see a snail – small, squishy animals with shells on their backs.

Wasps harness power of pitcher plants in first-ever observed defense strategy

As the saying goes, “When life gives you lemons, turn that tartness into little translucent balls in which to grow your young.”

A boy’s backyard discovery two years ago uncovered an incredibly intricate insect-plant interaction

A chance discovery by a professor’s son reveals a surprisingly complex interaction between plants and insects.

The Fight to Save the Embattled Monarch Butterfly

In the depths of the Californian winter, an ember of hope has flickered for the monarch butterfly, the charismatic and beloved visitor that has seemingly been on a graceful descent into oblivion.

EPA Expected to Extend Use of Bee-Killing Pesticides

The U.S. Environmental Protection Agency (EPA) is expected to approve a proposal to extend the use of four neonicotinoids for the next 15 years. These pesticides are known to be especially dangerous for essential pollinators, like bees and butterflies, and have been linked to the widespread decline of insect populations.

Fears for bees as US set to extend use of toxic pesticides that paralyse insects

The US Environmental Protection Agency is poised to allow the use of four of the most devastating chemicals to bees, butterflies and other insects to continue in America for the next 15 years, despite moves by the European Union to ban the use of toxins that have been blamed for widespread insect declines.

Farmers are overusing insecticide-coated seeds, with mounting harmful effects on nature

Planting season for corn and soybeans across the U.S. will begin as soon as March in Southern states and then move north. As farmers plant, they will deploy vast quantities of insecticides into the environment, without ever spraying a drop.