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ARS Home Pacific West Area Maricopa, Arizona U.S. Arid Land Agricultural Research Center Pest Management and Biocontrol Research People





- Colin Brent
- Ken Callicott
- Jeffrey Fabrick
- James Hagler
- Joe Hull
- Hillary Mehl
- Steve Naranjo

Kenneth Ashton Callicott    Research Molecular Biologist **Pest Management & Biological Control Research Unit**
**USDA-ARS, US Arid-Land AgriculturalResearch Center**
/ARSUserFiles/43447/ken.callicott head shot.jpg
**Kenneth A. Callicott****Research Molecular Biologist**Arid-Land Agricultural Research Center416 W Congress St.Tucson, Arizona 85701520-345-1588 (Office)520-316-6330 (FAX)ken.callicott@usda.gov**Education:**
B.S. Biology, The College of William and Mary in Virginia 1991Ph.D. Biological Sciences, Stanford University 2001
**Research Interests:**
My expertise lies in population genetics, molecular ecology, and the use of DNA technologies to detect, monitor, and characterize pathogens in crops.  My research is focused on the fungal plant pathogen *Aspergillus flavus* and its close relatives.  These fungi contaminate feed and food crops grown in warm areas with aflatoxins, potent carcinogens that can lead to immune suppression, growth suppression, and cancer at low exposure or organ failure and death at high exposure.  Currently, the most effective intervention to reduce aflatoxin exposure is pre-harvest biocontrol through application of non-aflatoxigenic *A. flavus* isolates.  My work focuses on better understanding the biology and ecology of this fungus to select better isolates that are the most effective for biocontrol and on developing new biocontrol products using population genetics to identify non-aflatoxigenic isolates that are native to particular crops and geographical areas.
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