Julianna Wilson

Academic Specialist / Tree Fruit Integrator

Julianna Wilson

PhD - Michigan State University (2007), Entomology
MS - Michigan State University (2003), Plant Pathology
BS - Michigan State University (1997), Horticulture

Food Safety & Toxicology
1129 Farm Lane Room B18
East Lansing, MI 48824

Phone: 517-432-4766

Julianna K. Wilson Website


A Michigan native, Dr. Wilson has over 15 years of research and outreach/extension experience in a variety of fruit and vegetable cropping systems. As the Tree Fruit Integrator / Outreach Specialist she collaborates with research and extension personnel at MSU and other institutions to develop sustainable solutions for producing tree fruit in Michigan. Some of her accomplishments to date include: 1) Documenting the bee community in commercial blueberry plantings in Michigan; 2) Identifying a set of native plants that could be used to provide food for bees in agricultural landscapes; 3) Evaluating the potential risk of insecticide programs to wild bee communities; 4) Building international collaborations, which have resulted in the inclusion of her blueberry bee community data in meta-analyses of bee communities across bee-dependent crops; 5) Contributing to the refinement of phenological models and insecticide-resistance management strategies for oblique-banded leaf rollers in tart cherry production; 6) Demonstrating when microsprinklers could be used to maintain temperatures above damaging levels during frost/freeze events in apple orchards; 7) Converting a printed Tree Fruit Field Guide into an online search engine (Tree fruit pest and beneficial search); and 8) Organizing a meeting of tree fruit growers, extension specialists, educators, reps from MDARD, USDA and EPA to develop a set of best management practices for protecting bees in orchards from which a document was produced that is now being used as a model by other groups to help regulators better understand the needs of growers and bee keepers engaged in pollination.

Current assignment: Research 25% | Extension 75%

Program Description


The main goal of her research program is to facilitate the development and implementation of tree fruit production practices that support the economic and environmental sustainability of the Michigan tree fruit industry, with a focus on managing dynamic pest and disease complexes in changing production systems. Current projects include the USDA-funded SCRI-CAP Integrated Crop Pollination project, another USDA-funded project to determine what impact fungicide use during orchard bloom may have on honey bees stocked for pollination, and two Project GREEEN-funded projects, to develop better monitoring techniques and understanding of the biology of spotted wing drosophila in tart cherry, and to determine the best timing for control of the black stem borer in apples and stone fruit. Projects planned in the future include evaluation of new apple root stocks for their tolerance of replant conditions, a new USDA-SCRI Project to coordinate efforts in eastern U.S. to control weevil pests of perennial fruit and nut crops, and a project to work on post-harvest issues in Honeycrisp apples.


The main goal of her extension program is to produce educational materials, tools, and programs that support the needs of Michigan tree fruit growers. She is the coordinator of the statewide spotted wing drosophila (SWD) and brown marmorated stink bug (BMSB) monitoring networks, writing weekly seasonal reports posted on MSU Extension News. She assists industry and Michigan Department of Ag in applications for special exemption labels (Section 18s). She is one of the education coordinators for Great Lakes Fruit, Vegetable, and Farm Market EXPO (attended by more than 4000 people each year) and the coordinator of the poster session and co-organizer of the Tree Fruit Session (attended by more than 250 growers in 2014). She is a co-organizer of the MSU Tree Fruit IPM School, a program offered every odd year for growers, crop managers, and field consultants, attended by more than 80 people each time who want to learn about the latest IPM tools and techniques, and how to identify new pests. She is also a co-organizer and co-founder of MSU Bee-Palooza, a 1-day public outreach event held during National Pollinator Week in June of each year that attracts more than 200 visitors of all ages interested in learning about bees. She is regularly invited to give extension talks on various topics related to tree fruit IPM and to bee conservation in general, reaching more than 800 people in 2014. Work is underway to complete the development of an online decision-support tool for apple and cherry growers related to international pesticide tolerances or maximum residue limits (MRLs). Plans for the future include developing a set of webinars and videos on basic horticultural concepts, developing a fact sheet on black stem borer management, and developing another web-based decision-support tool using content in the Fruit Management Guide (MSUE Bulletin E-154).


  • Fruit Tree IPM
  • Pollination

Professional Experience

  • 2011–Present - Tree Fruit Integrator / Outreach Specialist, Department of Entomology, Michigan State University
  • 2009-2011 - Adjunct Instructor, Biology Department, Lansing Community College
  • 2007-2011 - Research Associate, Department of Entomology, Michigan State University 

Selected Publications

(Also published as J.K. Tuell)

  • Williams, et al. (2015) Native wildflower plantings support wild bee abundance and diversity in agricultural landscapes across the United States. Ecological Applications (MS#14-1748) in press.
  • May, E., Wilson, J. and Isaacs, R. (May 2015) Minimizing Pesticide Risk To Bees In Fruit Crops. Bulletin E-3245, MSU Extension Service, East Lansing, MI
  • Werling, et al. (2014) Perennial grasslands enhance biodiversity and multiple ecosystem services in bioenergy landscapes. PNAS 111(4): 1652-1657.
  • Kennedy, et al. (2013) A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems. Ecology Letters, 16(5): 584–599.
  • Morrison, W.R., Tuell, J.K., Hausbeck, M.K., and Szendrei, Z. (2011) Constraints on Asparagus Production: The Association of Ophiomyia simplex (Diptera: Agromyzidae) and Fusarium spp. Crop Science 51(4): 1414-1423.
  • Tuell, J.K. and Isaacs, R. (2010) Community and species-specific responses of wild bees to insect pest control programs applied to a pollinator-dependent crop. Journal of Economic Entomology, Journal of Economic Entomology, 103(3): 668-675.
  • Tuell, J.K. and Isaacs, R. (2010) Weather during bloom affects pollination and yield of highbush blueberry. Journal of Economic Entomology 103(3): 557-562.
  • Gardiner, M.A., Tuell, J.K., Isaacs, R., Gibbs, J., Ascher, J.S., and Landis, D.A. (2010) Implications of three model biofuel crops for beneficial arthropods in agricultural landscapes. BioEnergy Research 3(1): 6-19.
  • Isaacs, R., Tuell, J., Fiedler, A., Gardiner, M., and Landis, D. (2009) Maximizing arthropod-mediated ecosystem services in agricultural landscapes: the role of native plants. Frontiers in Ecology and the Environment 7(4): 196–203.
  • Tuell, J.K., Ascher, J.S., and Isaacs, R. (2009) Wild bees (Hymenoptera: Apoidea: Apiformes) of the Michigan highbush blueberry agroecosystem. Annals of the Entomological Society of America, 102(2): 275-287.
  • Tuell, J.K. and Isaacs, R. (2009) Elevated pan traps to monitor bees in flowering crop canopies. Entomologia Experimentalis et Applicata, 131(1): 93-98.
  • Tuell, J.K., Fiedler, A.K., Landis, D.A., and Isaacs, R. (2008) Visitation by wild and managed bees (Hymenoptera: Apoidea) to eastern U.S. native plants for use in conservation programs. Environmental Entomology 37(3): 707-718.