Jared Gregory Ali, Ph.D.

Jared Gregory Ali, Ph.D.

  • Associate Professor of Entomology
  • Director, Center for Chemical Ecology
  • Dorothy Foehr Huck and J. Lloyd Huck Endowed Chair of Chemical Ecology
535 ASI Bldg.
University Park, PA 16802

Areas of Expertise

  • Entomology & Nematology
  • Insect-Plant Interactions
  • Behavioral Ecology
  • Chemical Ecology
  • Multi-trophic Interactions


  • Postdoctoral Fellow - Cornell University (2013), Ecol. & Evol. Biology
  • PhD - University of Florida (2011), Entomology & Nematology
  • MSc - University of Delaware (2008), Entomology & Applied Ecology

My focus is on the behavior and chemical ecology of multi-trophic interactions. This includes plant responses to herbivory, nematode and insect community ecology, chemical ecology, and coevolution. Research projects include trophic cascades, above-belowground interactions, chemotaxis of soil nematodes, and the evolution of plant defense strategies.


Divergent impacts of the neonicotinoid insecticide, clothianidin, on flight performance metrics in two species of migratory butterflies
Conservation Physiology, Cibotti, Staci, Saum, Phineas J., Myrick, Andrew James, Schilder, Rudolf J., Ali, Jared Gregory, 2024

Chemical ecology in conservation biocontrol: new perspectives for plant protection
Trends in Plant Science, Kansman, Jessica T., Jaramillo, Jorge L., Ali, Jared G., Hermann, Sara L., 2023

Extreme acidity in a cynipid gall: a potential new defensive strategy against natural enemies
Biology Letters, Guiguet, Antoine, McCartney, Nathaniel, Gilbert, Kadeem, Tooker, John, Deans, Andrew, Ali, Jared Gregory, Hines, Heather M., 2023

Impacts of larval host plant species on dispersal traits and free-flight energetics of adult butterflies
Communications Biology, Pocius, Victoria M., Cibotti, Staci, Ray, Swayamjit, Ankoma-Darko, Obenewa, McCartney, Nathaniel B., Schilder, Rudolf J., Ali, Jared G., 2022

Nutrition vs association: plant defenses are altered by arbuscular mycorrhizal fungi association not by nutritional provisioning alone
BMC Plant Biology, Stratton, Chase A., Ray, Swayamjit, Bradley, Brosi A., Kaye, Jason P., Ali, Jared G., Murrell, Ebony G., 2022

Low water availability enhances volatile-mediated direct defences but disturbs indirect defences against herbivores
Journal of Ecology, Lin, Po An, Paudel, Sulav, Bin Zainuddin, Nursyafiqi, Tan, Ching Wen, Helms, Anjel, Ali, Jared G., Felton, Gary W., 2022

Complex floral traits shape pollinator attraction to ornamental plants
Annals of Botany, Erickson, E., Junker, R. R., Ali, Jared Gregory, McCartney, N., Patch, H. M., Grozinger, C. M., 2022

Cover crop selection affects maize susceptibility to the fungal pathogen Fusarium verticillioides
Pedobiologia, Ray, Swayamjit, Wenner, Nancy G., Ankoma_Darko, Obenewa, Ankoma-Darko, Obenewa, Kaye, Jason P., Kuldau, Gretchen A., Ali, Jared G., 2022

Plant Nutrition Influences Resistant Maize Defense Responses to the Fall Armyworm (Spodoptera frugiperda)
Frontiers in Ecology and Evolution, Mason, Charles J., Ray, Swayamjit, Davidson-Lowe, Elizabeth, Ali, Jared, Luthe, Dawn S., Felton, Gary, 2022

Transcriptomic and volatile signatures associated with maize defense against corn leaf aphid
BMC Plant Biology, Pingault, Lise, Varsani, Suresh, Palmer, Nathan, Ray, Swayamjit, Williams, W. Paul, Luthe, Dawn S., Ali, Jared G., Sarath, Gautam, Louis, Joe, 2021

Chemical Cues from Entomopathogenic Nematodes Vary Across Three Species with Different Foraging Strategies, Triggering Different Behavioral Responses in Prey and Competitors
Journal of Chemical Ecology, Grunseich, John M., Aguirre, Natalie M., Thompson, Morgan N., Ali, Jared G., Helms, Anjel M., 2021

Cover Crop Soil Legacies Alter Phytochemistry and Resistance to Fall Armyworm (Lepidoptera: Noctuidae) in Maize
Environmental Entomology, Davidson-Lowe, Elizabeth, Ray, Swayamjit, Murrell, Ebony, Kaye, Jason, Ali, Jared G., 2021

Silencing the alarm: an insect salivary enzyme closes plant stomata and inhibits volatile release
New Phytologist, Lin, Po-An, Chen, Yintong, Chaverra-Rodriguez, Duverney, Zainuddin, N, Heu, Chan, Zainuddin, Nursyafiqi, Sidhu, J, Peiffer, M, Sidhu, Jagdeep, Peiffer, Michelle, Tan, C, Tan, Ching-Wen, Helms, A, Helms, Anjel, Kim, D, Kim, Donghun, Ali, J, Ali, None, Ali, Jared, Rasgon, J, Rasgon, Jason, Lynch, Jonathan, Anderson, C, Felton, G, Anderson, Charles T., Felton, Gary W., 2021

Stomata-mediated interactions between plants, herbivores, and the environment
Trends in Plant Science, Lin, Po-An, Chen, Yintong, Ponce, Gabriela, Acevedo, Flor, Lynch, Jonathan P., Anderson, Charles, Ali, Jared G., Felton, Gary W., 2021

Top-down effects from parasitoids may mediate plant defence and plant fitness
Functional Ecology, Tan, Ching Wen, Peiffer, Michelle L., Ali, Jared G., Luthe, Dawn S., Felton, Gary W., 2020

Population- A nd Species-Based Variation of Webworm-Parasitoid Interactions in Hogweeds (Heracelum spp.) in the Netherlands
Environmental Entomology, Harvey, Jeffrey A., Ode, Paul J., Gols, Rieta, Ali, Jared, 2020

Chemical Ecology of Multitrophic Microbial Interactions: Plants, Insects, Microbes and the Metabolites that Connect Them
Journal of Chemical Ecology, Ali, Jared G., Casteel, C. L., Mauck, K. E., Trase, O., 2020

Generalising indirect defence and resistance of plants
Ecology Letters, Pearse, Ian S., LoPresti, Eric, Schaeffer, Robert N., Wetzel, William C., Mooney, Kailen A., Ali, Jared G., Ode, Paul J., Eubanks, Micky D., Bronstein, Judith L., Weber, Marjorie G., 2020

Asymmetry in Herbivore Effector Responses: Caterpillar Frass Effectors Reduce Performance of a Subsequent Herbivore
Journal of Chemical Ecology, Ray, Swayamjit, Helms, Anjel M., Matulis, Nina L., Davidson-Lowe, Elizabeth, Grisales, William, Ali, Jared G., 2020

The Combined Effect of Elevated O3 Levels and TYLCV Infection Increases the Fitness of Bemisia tabaci Mediterranean on Tomato Plants
Environmental Entomology, Cui, Hongying, Sun, Yucheng, Zhao, Zihua, Zhang, Youjun, Ali, Jared, 2019

Nitrogen Fertilization of Host Plant Influenced the Nutritional Status and Life History of the Madeira Mealybug (Hemiptera: Pseudococcidae)
Environmental Entomology, Rhodes, Stephanie A., Turnbull, Matthew W., Chong, Juang Horng, Ali, Jared, 2019

Host Plant Effects on Winter Moth (Lepidoptera: Geometridae) Larval Development and Survival
Environmental Entomology, O'Donnell, Kaitlyn, Elkinton, Joseph, Donahue, Charlene, Groden, Eleanor, Ali, Jared, 2019

Host Plant Salinity Stress Affects the Development and Population Parameters of Nilaparvata lugens (Hemiptera: Delphacidae)
Environmental Entomology, Quais, Md Khairul, Ansari, Naved Ahmad, Wang, Gui Yao, Zhou, Wen Wu, Zhu, Zeng Rong, Ali, Jared, 2019

Induced Plant Defenses Against Herbivory in Cultivated and Wild Tomato
Journal of Chemical Ecology, Paudel, Sulav, Lin, Po An, Foolad, Majid R., Ali, Jared G., Rajotte, Edwin G., Felton, Gary W., 2019

Chemical cues linked to risk: Cues from below-ground natural enemies enhance plant defences and influence herbivore behaviour and performance
Functional Ecology, Helms, Anjel, Ray, Swayamjit, Matulis, Nina, Kuzemchak, Margaret, Grisales, William, Tooker, John, Ali, Jared G., 2019

‘Tuning’ communication among four trophic levels of the root biome to facilitate biological control
Biological Control, Stelinski, Lukasz L., Willett, Denis, Rivera, Monique J., Ali, Jared G., 2019

Asymmetric effects of a leaf-chewing herbivore on aphid population growth
Ecological Entomology, Davidson-Lowe, Elizabeth, Szendrei, Zsofia, Ali, Jared G., 2019

Airborne signals synchronize the defenses of neighboring plants in response to touch
Journal of Experimental Botany, Markovic, Dimitrije, Colzi, Ilaria, Taiti, Cosimo, Ray, Swayamjit, Scalone, Romain, Ali, Jared Gregory, Mancuso, Stefano, Ninkovic, Velemir, 2019

Plant Bio-Wars: Maize Protein Networks Reveal Tissue-Specific Defense Strategies in Response to a Root Herbivore
Journal of Chemical Ecology, Castano-Duque, Lina, Helms, Anjel, Ali, Jared Gregory, Luthe, Dawn S., 2018

Susceptibility of wounded and intact black soldier fly Hermetia illucens (L.) (Diptera: Stratiomyidae) to entomopathogenic nematodes
Journal of Invertebrate Pathology, Tourtois, Joseph, Ali, Jared Gregory, Grieshop, Matthew J., 2017

Choosy mothers pick challenging plants: maternal preference and larval performance of a specialist herbivore are not linked
Ecological Entomology, Hufnagel, Monica, Schilmiller, Anthony L., Ali, Jared, Szendrei, Zsofia, 2017

Trade-offs and tritrophic consequences of host shifts in specialized root herbivores
Functional Ecology, Ali, Jared G., Agrawal, Anurag A., 2017

Identification of plant semiochemicals and evaluation of their interactions with early spring insect pests of asparagus
Journal of Plant Interactions, Morrison, William R., Ingrao, Adam, Ali, Jared, Szendrei, Zsofia, 2016

Macroevolutionary trends in the defense of milkweeds against monarchs, Agrawal, Anurag, Ali, Jared, Rasmann, Sergio, Fishbein, Mark, 2015