John Tooker

Professor of Entomology

John Tooker

Publication Tags

Insects Pollen Proteins Genes Herbivores Aphid Aphidoidea Saliva Solidago Altissima Bees Herbivory Seed Lipids Abscisic Acid Defence Insecticides Herbivore Chemical Ecology Insect Integrated Pest Management Aphids Bombus Genotype Resistance Management Plant Growth Regulators

Most Recent Papers

Phytohormones in Fall Armyworm Saliva Modulate Defense Responses in Plants

Flor Edith Acevedo, Philip B. Smith, Michelle Peiffer, Anjel Helms, John Frazier Tooker, Gary Felton, 2019, Journal of Chemical Ecology on p. 598-609

Costs of plant defense priming

Eric C. Yip, John Frazier Tooker, Mark C. Mescher, Consuelo M. De Moraes, 2019, BMC plant biology

Chemical cues linked to risk

Anjel M. Helms, Swayamjit Ray, Nina L. Matulis, Margaret C. Kuzemchak, William Grisales, John F. Tooker, Jared G. Ali, 2019, Functional Ecology on p. 798-808

A network approach reveals parasitoid wasps to be generalized nectar foragers

Ash T. Zemenick, Robert R. Kula, Laura Russo, John Tooker, 2019, Arthropod-Plant Interactions on p. 239-251

Trade-offs between defenses against herbivores in goldenrod (Solidago altissima)

Eric C. Yip, Rosalie P. Sowers, Anjel M. Helms, Mark C. Mescher, Consuelo M. De Moraes, John Frazier Tooker, 2019, Arthropod-Plant Interactions on p. 279-287

Evaluation of biorational insecticides and DNA barcoding as tools to improve insect pest management in lablab bean (Lablab purpureus) in Bangladesh

Margaret R. Douglas, Jan Chang, Kohinoor Begum, Sevgan Subramanian, John F. Tooker, Syed Nurul Alam, Srinivasan Ramasamy, 2018, Journal of Asia-Pacific Entomology on p. 1326-1336

Zucchini yellow mosaic virus infection limits establishment and severity of powdery mildew in wild populations of cucurbita pepo

Jacquelyn E. Harth, Matthew J. Ferrari, John F. Tooker, Andrew G. Stephenson, 2018, Frontiers in Plant Science

Chemical Ecology and Sociality in Aphids

Patrick Abbot, John Tooker, Sarah P. Lawson, 2018, Journal of Chemical Ecology on p. 1-15

Landscape Factors Influencing Stink Bug Injury in Mid-Atlantic Tomato Fields

Kevin B. Rice, Rachael R. Troyer, Kristal M. Watrous, John F. Tooker, Shelby J. Fleischer, 2017, Journal of economic entomology on p. 94-100

Bumble bees regulate their intake of essential protein and lipid pollen macronutrients

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

Most-Cited Papers

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, 2013, Proceedings of the National Academy of Sciences of the United States of America on p. 15728-15733

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 Frazier Tooker, 2015, Environmental Science and Technology on p. 5088-5097

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

Seeds of change

David W. Onstad, Paul D. Mitchell, Terrance M. Hurley, Jonathan G. Lundgren, R. Patrick Porter, Christian H. Krupke, Joseph L. Spencer, Christine D. Difonzo, Tracey S. Baute, Richard L. Hellmich, Lawrent L. Buschman, William D. Hutchison, John F. Tooker, 2011, Journal of economic entomology on p. 343-352

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, 2016, Proceedings of the National Academy of Sciences of the United States of America on p. E4035-E4042

Exposure of Solidago altissima plants to volatile emissions of an insect antagonist (Eurosta solidaginis) deters subsequent herbivory

Anjel M. Helms, Consuelo M. De Moraes, John F. Tooker, Mark C. Mescher, 2013, Proceedings of the National Academy of Sciences of the United States of America on p. 199-204

Shared genes related to aggression, rather than chemical communication, are associated with reproductive dominance in paper wasps (Polistes metricus)

Amy L. Toth, John F. Tooker, Srihari Radhakrishnan, Robert Minard, Michael T. Henshaw, Christina M. Grozinger, 2014, BMC genomics

Herbicide drift can affect plant and arthropod communities

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

Feeding by a gall-inducing caterpillar species alters levels of indole-3-acetic and abscisic acid in Solidago altissima (Asteraceae) stems

John Frazier Tooker, Consuelo M De Moraes, 2011, Arthropod-Plant Interactions on p. 115-124

One gene versus two

M. T. McCarville, M. E. O'Neal, B. D. Potter, K. J. Tilmon, E. M. Cullen, B. P. McCornack, J. F. Tooker, D. A. Prischmann-Voldseth, 2014, Journal of economic entomology on p. 1680-1687

News Articles Featuring John Tooker

Gall fly outmaneuvers host plant in game of 'Spy vs. Spy'

Over time, goldenrod plants and the gall flies that feed on them have been one-upping each other in an ongoing competition for survival. Now, a team of researchers has discovered that by detecting the plants’ chemical defenses, the insects may have taken the lead.

Half a billion dead honey bees in Brazil show what happens when you roll back pesticide regulations

Insecticides kill insects. It should be no surprise, then, that in Brazil, which has seen a 27% increase in pesticide sales since last year, roughly 500 million honey bees were found dead in piles across four states in early spring.

Find potato leafhoppers in your alfalfa with these 5 tips

Applying insecticides without knowing the number of pests in a field can cost you.

New crop-destroying pest enters China amid devastating swine fever epidemic

A new pest that threatens key agricultural commodities is spreading through China while the nation already is reeling from an African swine fever epidemic that may wipe out hundreds of millions of hogs.

Alumna Laura Russo receives Robert May Prize from the British Ecological Society

PSU alumna Laura Russo has been selected to receive the Robert May Prize from the British Ecological Society, the oldest ecological society in the world. The prize recognizes the best paper by an early career researcher in the society’s scientific journal Methods in Ecology and Evolution.