North Central Region IR-4 Project


Dr. Jiang has a solid background in science with over 20 years of experience in research, teaching and services. He has been principal and co-principal investigator on grants and contracts totaling over $8 million. He has published and presented over 50 papers and presentations in the areas of chemistry, food safety, environmental contamination and pest management. Dr. Jiang co-authored over 100 IR-4 Analytical Summary Reports that have been submitted to the Environmental Protection Agency (EPA) for pesticide registration. While being on the United States Department of Agriculture (USDA) Foreign Agricultural Service’s mission, Capacity Building, Dr. Jiang and colleagues travelled to many countries in Asia, Africa and Central and South America to help these developing countries develop internationally recognized pest management programs and to establish their regulatory systems, which are very important to global food safety. He worked in industries in Toronto and Detroit before joining Michigan State University (MSU) in 2003. Dr. Jiang became a faculty member at the Department of Entomology in 2006. Dr. Jiang is serving as a senior editor of the Bulletin of Environmental Contamination and Toxicology.

Current assignment: Research 50% | Teaching 5% | Outreach & Services 45%

Program Description

For more than 50 years, the USDA Interregional Research Project Number 4 (IR-4 Project) has been the primary resource in the United States for facilitating registrations of pesticides on specialty crops and minor uses, which include the majority of fruit, vegetable and ornamental crops. The IR-4 program is fully funded by the USDA. The IR-4 Project contributes more than $7.3 billion to annual gross domestic product (GDP) in the U.S. Therefore, IR-4 is very important to U.S. specialty crop growers, and in particular to growers in Michigan, which has one of the most diverse agricultures in the U.S.

Overall, my work with IR-4 at MSU is providing the reliable and high quality residue data necessary for tolerance establishment with the EPA. All of these studies are conducted under the demanding regulations of the EPA’s Good Laboratory Practice (GLP) system. As can be seen from my CV, I have authored over 100 Analytical Summary Reports submitted to the EPA. For example, mainly based on our many years’ work at MSU, the EPA established in 2012 a number of tolerances for residues of an insecticide, Bifenthrin, in vegetables, fruits, sweet corn, nuts, tea, grasses and other crops, totaling 56 food crops and crop fractions, which allows their legal use in the U.S. (40 CFR 180.442, Sept. 4, 2012). In many cases, without the IR-4 program such crops could not be grown economically.

Recently, I have become active in the capacity building program of the USDA Foreign Agricultural Service that helps developing countries improve their agricultural systems (such as minor use programs and regulatory systems) and enhance their international trade capacities. Many institutions in the U.S. participate in the capacity building program. I have been actively participating in the capacity building program for four years. My involvement in the capacity building program is to provide the services for the pesticide laboratory GLP training. One of my roles is the laboratory trainer for method validation. For example, I have been the main trainer to the laboratory trainings for capacity building program studies in some of the Association of Southeast Asian Nations countires (Malaysia, Singapore, Thailand, Philippines, Indonesia, Vietnam) and Central and South America. Recently, we started capacity building program projects in Africa (Egypt, Morocco, Ghana, Senegal, Uganda and Kenya). I have been working closely with China to be on the team to foster cooperation and information exchange with the intention of a reciprocal recognition of each other’s GLP programs and mutual acceptance of pesticide residue data.

More information is available at the MSU Department of Entomology website.


  • Analytical Chemistry
  • Good Laboratory Practices
  • Capacity Building
  • Food Safety
  • Environmental Contamination and Toxicology

Professional Experience

  • 2006-Present – Assistant Professor, Department of Entomology, Michigan State University
  • 2003-2005 – Academic Specialist, National Food Safety & Toxicology Center, Michigan State University
  • 2000-2003 – Laboratory Manager, University Laboratory Inc.
  • 1999-2000 – Senior Chemist, Caduceon Inc.

Selected Publications

  • Zhang ZY, Jiang W, Jian Q, Song QC, Zheng ZT3, Wang DL, LiuXJ. Changes of field incurred chlorpyrifos and its toxic metabolite residues in rice during food processing from-RAC-To-Consumption. PLoS ONE (2015), DOI: 10.1371/journal.pone.0116467.
  • Huan Z, Zhi Xu Z, Jiang W, Chen Z, Luo J, Effect of Chinese traditional cooking on eight pesticides residue during cowpea processing. Food Chemistry 2015 (170) 118-122. DOI: 10.1016/j.foodchem.2014.08.052.
  • Zhang Z, Jiang W, Jian Q, Song W, Zheng Z, Wang D, Liu X. Residues and dissipation kinetics of triazole fungicides difenoconazole and propiconazole in wheat and soil in Chinese fields. Food Chemistry. 2015, (168) 396-403. DOI: 10.1016/j.foodchem.2014.07.087.
  • Lu MX, Jiang W, Wang JL, Jian Q, Shen Y, Liu XJ, Yu XY. Persistence and Dissipation of Chlorpyrifos in Brassica Chinensis, Lettuce, Celery, Asparagus Lettuce, Eggplant, and Pepper in a Greenhouse. PLoS ONE, 2014, 9(6): e100556. doi:10.1371/journal.pone.0100556.
  • Jiang W, Jian Q, Zheng Z, Liu X. Introduction to IR-4 Project “Pesticide Minor Use Management on Specialty Crops”. Pesticide Science and Administration, 2014 35(5) 17-21. In Chinese.
  • Zhang Z, Jiang W, Jian Q, Song W, Zheng Z, Ke C, Liu X. Thiabendazole uptake in shimeji, king oyster, and oyster mushrooms and its persistence in sterile and nonsterile substrates. Journal of Agricultural Food and Chemistry. 2014, 62(6):1221-6. doi: 10.1021.
  • Wang TT, Cheng J, Liu XJ, Jiang W, Zhang CL, Yu XY. Effect of biochar amendment on the bioavailability of pesticide chlorantraniliprole in soil to earthworm. Ecotoxicology and Environmental Safety 2012, 83:96-101.
  • Westaway KC and Jiang W. Isotope effects in nucleophilic substitution reactions XI. The effect of ion-pairing, substituents, and the solvent on SN2 transition states, Canadian Journal of Chemistry, 77 (2011) 879-889. DOI: 10.1139cjc-77-5-6-879.
  • Zhang CZ, Zhang ZY, Liu XJ, Jiang W, Wu YD. Dissipation and environmental fate of herbicide H-9201 in carrot plantings under field conditions. Food Chemistry. 2010, 119: 874-879.
  • Jiang W, Kon RT, Othoudt RA, Leavitt RA, Kumar S, Geissel LD, Gomaa EA. Method development, validation, and analysis of bifenthrin residues in fresh and dry cilantro foliages and cilantro seeds using GC-ECD. Bulletin of Environmental Contamination and Toxicology. 2004, 73: 9-16.
  • Jiang W, Childs RF, Mika AM, Dickson JM. Pore-filled cation-exchange membranes containing poly (styrenesulfonic acid) gels. Desalination. 2003, 159(3): 253-266. Impact
  • Ge J, Cui Y, Yan Y, Jiang W. The effect of structure on pervaporation of chitosan membrane. Journal of Membrane Science, 2000, 165: 75-81. 
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