Faculty

John Tooker

Professor of Entomology

506 ASI
University Park, PA

Email jft11@psu.edu
Phone 814-865-1895

Areas of Expertise

Host Plant Agricultural and Biological Sciences
Herbivore Keyphrases
Plant Defense Agricultural and Biological Sciences
Neonicotinoid Agricultural and Biological Sciences
Plant Defense Keyphrases
Neonicotinoids Keyphrases
Aphid Agricultural and Biological Sciences
Plant Species Keyphrases

The functional role of ants in no-till cropping systems
Adegboyega O. Fajemisin, Andrew V. Suarez, John F. Tooker, 2026, In: Pest Management Science
Date: 2026

Acute toxicity of neonicotinoid insecticides to ground beetles (Coleoptera: Carabidae) from Pennsylvania
Kirsten A. Pearsons, John F. Tooker, Jun 1 2025, In: Environmental entomology
Date: Jun 1 2025

Two new species of Ormyrus Westwood (Hymenoptera: Ormyridae) from Cynipidae (Hymenoptera) galls on Silphium L. (Asteraceae: Heliantheae)
Louis F. Nastasi, Charles K. Davis, Jelani K. Alcorn, Timothy S. Frey, M. J. Hatfield, Heather M. Hines, John F. Tooker, Andrew R. Deans, Mar 7 2025, In: Zootaxa
Date: Mar 7 2025

A Volatile Cue From a Specialist Herbivore Primes Gene Expression Against Biotic Stress in Tall Goldenrod (Solidago altissima L.)
Robert J. Witkowski, Lily A. Sudol, Eric C. Yip, John F. Tooker, Tanya Renner, 2025, In: Plant, Cell and Environment
Date: 2025

Integrated pest management
Daren S. Mueller, Laura C. Iles, Carol L. Pilcher, Adam J. Sisson, Roger Magarey, Ryan Adams, Wanda I. Almodovar, Diane Alston, Patrick Beauzay, Ricardo Bessin, Mandy Bish, Mary Burrows, Alejandro Calixto, Rakesh Chandran, Jed B. Colquhoun, Mary Concklin, Amy J. Dreves, Peter C. Ellsworth, Paul D. E..., 2025, In: Journal of Integrated Pest Management
Date: 2025

Insecticides may facilitate the escape of weeds from biological control
Elizabeth K. Rowen, Kirsten Ann Pearsons, Richard G. Smith, Kyle Wickings, John F. Tooker, 2025, In: PeerJ
Date: 2025

Feeding by slugs on maize imposes variable productivity costs but can induce compensatory growth under some conditions
John F. Tooker, Matthew T. Boucher, John M. Wallace, Margaret R. Douglas, 2025, In: Pest Management Science
Date: 2025

An insect pheromone primes tolerance of herbivory in goldenrod plants
Eric C. Yip, Mark C. Mescher, Consuelo M. De Moraes, John F. Tooker, Jan 2025, In: Ecology
Date: Jan 2025

Does a shift to a novel host plant create a defence-free space for a specialist herbivore species?
Eric C. Yip, Aaron L. Iverson, Tegan E. Anderson, Sofie G. Carlson, Lucy W. Nash, John F. Tooker, 2025, In: Functional Ecology
Date: 2025

Illuminating patterns of firefly abundance using citizen science data and machine learning models
Darin J. McNeil, Sarah C. Goslee, Melanie Kammerer, Sarah E. Lower, John F. Tooker, Christina M. Grozinger, Jun 15 2024, In: Science of the Total Environment
Date: Jun 15 2024

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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, Mar 2014, In: Agricultural Systems
Citations: 570

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, Apr 21 2015, In: Environmental Science and Technology
Citations: 466

Bee nutrition and floral resource restoration
Anthony D. Vaudo, John F. Tooker, Christina M. Grozinger, Harland M. Patch, Jun 11 2015, In: Current Opinion in Insect Science
Citations: 446

Biology, ecology, and management of brown marmorated stink bug (Hemiptera: Pentatomidae)
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, D..., Sep 1 2014, In: Journal of Integrated Pest Management
Citations: 413

Herbivore exploits orally secreted bacteria to suppress plant defenses
Seung Ho Chung, Cristina Rosa, Erin D. Scully, Michelle Peiffer, John F. Tooker, Kelli Hoover, Dawn S. Luthe, Gary W. Felton, Sep 24 2013, In: Proceedings of the National Academy of Sciences of the United States of America
Citations: 397

Macronutrient ratios in pollen shape bumble bee (Bombus impatiens) foraging strategies and floral preferences
Anthony D. Vaudo, Harland M. Patch, David A. Mortensen, John F. Tooker, Christina M. Grozinger, Jul 12 2016, In: Proceedings of the National Academy of Sciences of the United States of America
Citations: 326

Genotypically diverse cultivar mixtures for insect pest management and increased crop yields
John F. Tooker, Steven D. Frank, Oct 2012, In: Journal of Applied Ecology
Citations: 235

Pollen protein
Anthony D. Vaudo, John F. Tooker, Harland M. Patch, David J. Biddinger, Michael Coccia, Makaylee K. Crone, Mark Fiely, Jacob S. Francis, Heather M. Hines, Mackenzie Hodges, Stephanie W. Jackson, Denis Michez, Junpeng Mu, Laura Russo, Maliheh Safari, Erin D. Treanore, Maryse Vanderplanck, Eric Yip, A..., Feb 2020, In: Insects
Citations: 230

Role of trichomes in defense against herbivores
Donglan Tian, John Tooker, Michelle Peiffer, Seung Ho Chung, Gary W. Felton, Oct 2012, In: Planta
Citations: 225

Plants on early alert
Michelle Peiffer, John F. Tooker, Dawn S. Luthe, Gary W. Felton, Nov 2009, In: New Phytologist
Citations: 208

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Centers & Institutes