Jared Ali

Acting Chair, Intercollege Graduate Degree Program in Ecology; Director of the Center for Chemical Ecology; Associate Professor of Entomology

Jared  Ali

Research Summary

Behavior and chemical ecology of multi-trophic interactions, including plant responses to below-ground herbivory and nematode. Insect community ecology, chemical ecology, and coevolution. Trophic cascades, above- and below-ground interactions, chemotaxis of soil nematodes, and evolution of plant defense strategies.

Huck Graduate Students

Huck Affiliations


Publication Tags

Herbivores Herbivory Herbivore Genotype Corn Insects Soil Natural Enemies Defense Nematode Maize Oviposition Insect Entomopathogenic Nematodes Fungi Plant Defense Butterflies Larva Spodoptera Frugiperda Natural Enemy Nutrition Volatile Organic Compounds Enzymes Chemical Cue Cover Crop

Most Recent Publications

Victoria M. Pocius, Staci Cibotti, Swayamjit Ray, Obenewa Ankoma-Darko, Nathaniel B. McCartney, Rudolf J. Schilder, Jared G. Ali, 2022, Communications Biology

Chase A. Stratton, Swayamjit Ray, Brosi A. Bradley, Jason P. Kaye, Jared G. Ali, Ebony G. Murrell, 2022, BMC Plant Biology

Low water availability enhances volatile-mediated direct defences but disturbs indirect defences against herbivores

Po An Lin, Sulav Paudel, Nursyafiqi Bin Zainuddin, Ching Wen Tan, Anjel Helms, Jared G. Ali, Gary W. Felton, 2022, Journal of Ecology on p. 2759-2771

E. Erickson, R. R. Junker, Jared Gregory Ali, N. McCartney, H. M. Patch, C. M. Grozinger, 2022, Annals of Botany on p. 561-577

Cover crop selection affects maize susceptibility to the fungal pathogen Fusarium verticillioides

Swayamjit Ray, Nancy G. Wenner, Obenewa Ankoma-Darko, Jason P. Kaye, Gretchen A. Kuldau, Jared G. Ali, 2022, Pedobiologia

Feeding and oviposition by the brown marmorated stink bug, Halyomorpha halys (Stål) induce direct and systemic changes in volatile compound emissions from potted peach and tree of heaven

Hillary M. Peterson, Swayamjit Ray, Jared G. Ali, Grzegorz Krawczyk, 2022, Arthropod-Plant Interactions on p. 227-247

Charles J. Mason, Swayamjit Ray, Elizabeth Davidson-Lowe, Jared Ali, Dawn S. Luthe, Gary Felton, 2022, Frontiers in Ecology and Evolution

Lise Pingault, Suresh Varsani, Nathan Palmer, Swayamjit Ray, W. Paul Williams, Dawn S. Luthe, Jared G. Ali, Gautam Sarath, Joe Louis, 2021, BMC Plant Biology

John M. Grunseich, Natalie M. Aguirre, Morgan N. Thompson, Jared G. Ali, Anjel M. Helms, 2021, Journal of Chemical Ecology on p. 822-833

Cover Crop Soil Legacies Alter Phytochemistry and Resistance to Fall Armyworm (Lepidoptera: Noctuidae) in Maize

Elizabeth Davidson-Lowe, Swayamjit Ray, Ebony Murrell, Jason Kaye, Jared G. Ali, 2021, Environmental Entomology on p. 958-967

Most-Cited Papers

Asymmetry of plant-mediated interactions between specialist aphids and caterpillars on two milkweeds

Jared G. Ali, Anurag A. Agrawal, 2014, Functional Ecology on p. 1404-1412

Dimitrije Markovic, Ilaria Colzi, Cosimo Taiti, Swayamjit Ray, Romain Scalone, Jared Gregory Ali, Stefano Mancuso, Velemir Ninkovic, 2019, Journal of Experimental Botany on p. 691-700

Induced Plant Defenses Against Herbivory in Cultivated and Wild Tomato

Sulav Paudel, Po An Lin, Majid R. Foolad, Jared G. Ali, Edwin G. Rajotte, Gary W. Felton, 2019, Journal of Chemical Ecology on p. 693-707

Sending Mixed Messages: A Trophic Cascade Produced by a Belowground Herbivore-Induced Cue

Jared G. Ali, Raquel Campos-Herrera, Hans T. Alborn, Larry W. Duncan, Lukasz L. Stelinski, 2013, Journal of Chemical Ecology on p. 1140-1147

Generalising indirect defence and resistance of plants

Ian S. Pearse, Eric LoPresti, Robert N. Schaeffer, William C. Wetzel, Kailen A. Mooney, Jared G. Ali, Paul J. Ode, Micky D. Eubanks, Judith L. Bronstein, Marjorie G. Weber, 2020, Ecology Letters on p. 1137-1152

R. Campos-Herrera, J. G. Ali, B. M. Diaz, L. W. Duncan, 2013, Frontiers in Plant Science

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

Above-ground herbivory by red milkweed beetles facilitates above- and below-ground conspecific insects and reduces fruit production in common milkweed

Alexis C. Erwin, Tobias Züst, Jared G. Ali, Anurag A. Agrawal, 2014, Journal of Ecology on p. 1038-1047

Monica Hufnagel, Anthony L. Schilmiller, Jared Ali, Zsofia Szendrei, 2017, Ecological Entomology on p. 33-41

Po-An Lin, Yintong Chen, Duverney Chaverra-Rodriguez, N Zainuddin, Chan Heu, J Sidhu, Nursyafiqi Zainuddin, Jagdeep Sidhu, M Peiffer, Michelle Peiffer, C Tan, Ching-Wen Tan, A Helms, D Kim, Anjel Helms, Donghun Kim, J Ali, Ali, J Rasgon, Jared Ali, Jason L. Rasgon, C Anderson, Jonathan Lynch, G Felton, Charles T. Anderson, Gary W. Felton, 2021, New Phytologist on p. 793--803

News Articles Featuring Jared Ali

Pennsylvania’s new lawn-fertilizing rules, trees in heat, and bugs on the milkweeds: This Weekend in the Garden

Pennsylvania has a new set of rules aimed at preventing unnecessary lawn fertilizers from polluting waterways.

Jared Ali named director of the Penn State Center for Chemical Ecology

Jared Ali, Dorothy Foehr Huck and J. Lloyd Huck Chair of Chemical Ecology and associate professor of entomology in the College of Agricultural Sciences, has been named director of the Penn State Center for Chemical Ecology (CCE).

Jared Ali named Huck Chair of Chemical Ecology

Jared Ali, associate professor of entomology in Penn State's College of Agricultural Sciences, has been named the Dorothy Foehr Huck and J. Lloyd Huck Chair of Chemical Ecology by the University’s Huck Institutes of the Life Sciences.

Silencing the alarm

An enzyme in the saliva of certain insects prevents their food plants from warning neighboring plants of an attack.

Oh Good, Trillions of Cicadas Are Coming

They’ll make their arrival in the region sometime in May or June.

Nematode odors offer possible advantage in the battle against insect pests

Gardeners commonly use nematodes to naturally get rid of harmful soil-dwelling insects. A new study published today in the journal Functional Ecology revealed that these insect-killing nematodes also produce distinctive chemical cues, which deter Colorado potato beetles and make potato leaves less palatable to them.