The Purdue University Plant and Pest Diagnostic Lab (P&PDL) is an interdisciplinary facility that provides rapid and accurate identification of plants, pests, and plant problems; suggests management strategies, when requested; and is a source of unbiased information for plant- and pest-related problems. This service is available to growers, Extension personnel, private businesses, and the general public.

Plant Disease Diagnostician/Director, P&PDL
Purdue University
Botany and Plant Pathology, Lilly Hall
915 West State Street
West Lafayette, IN 47907-2054
Office: LSPS 102
Phone: (765) 494-8081
FAX: (765) 494-3958
E-mail:    creswell@purdue.edu

Sr. Plant Disease Diagnostician
Purdue University
Botany and Plant Pathology, Lilly Hall
915 West State Street
West Lafayette, IN 47907-2054
Office: LSPS 110
Phone: (765) 494-4641
FAX: (765) 494-3958
E-mail:    ruhlg@purdue.edu

Janet Whaley

Secretary, P&PDL
Purdue University
Botany and Plant Pathology, Lilly Hall
915 West State Street
West Lafayette, IN 47907-2054
Office: LSPS 101
Phone: (765) 494-7071
FAX: (765) 494-3958
E-mail:    whaleyj@purdue.edu

Amy Deitrich

Exension Assistant/P&PDL Coordinator 
Purdue University
Botany and Plant Pathology, Lilly Hall
915 West State Street
West Lafayette, IN 47907-2054
Office: LILY 1-423
Phone: (765) 494-9871
FAX: (765) 494-0363
E-mail:    amymd@purdue.edu