Research Leader and Research Plant Pathologist 
USDA-ARS MWA
Plant Pathology
The Ohio State University/Ohio Agricultural Research and Development Center
1680 Madison Avenue
Wooster, Ohio 44691
Phone: (330) 263-3672
Fax: (330) 263-3841

Areas of Special Interest:

Biotic and abiotic diseases of nursery, greenhouse and landscape plants; electron beam analysis of pesticide spray drift and canopy penetration.

Research Interests

Dr. Krause is a USDA/ARS plant pathologist whose mission is to improve plant health, to develop safer, more effective chemical and biological strategies to control plant disease while preserving the environment. He uses electron beam analysis to directly identify and quantitate fungicide particles and droplets on targeted plant surfaces. He leads a plant bioscience project that seeks to improve pesticide application technology to optimize chemical and biological control of nursery, orchard, and greenhouse pathogens. Part of the future thrusts of his program include visualizing host/parasite/fungicide interaction on the phylloplane, characterization of chemical pesticide injury, as well as identification of abiotic plant stress injury caused by air pollutants or other stress factors. A scanning electron microscope energy-dispersive x-ray analyzer interfaced with digital light microscopy in his laboratories are specifically used to accomplish his mission. He works closely with other USDA-ARS scientists and OSU agricultural engineers and is associated with the Laboratory for Pesticide Control Application Technology at the OARDC, a consortium of scientists from several agriculture-related disciplines interested in plant health.

Other Activities

IR-4, Minor-use pesticide label expansion for food-use and ornamental crops. Member, OSU Extension, Nursery, Landscape and Turf Team (ENLTT).

Selected Publications

Krause, C. R., and Powell, C. C. 1989. Measurement of fungicide smoke application by electron beam analysis. Scan. Microsc. 3:243-248. Krause, C.R. Fungicide benefits assessment-Ornamentals. 1991 National Agricultural Pesticide Impact Assessment Program. Ohio State University Press. Pp. 36. Columbus, Ohio.

Fox, R.D., Reichard, D.L., Brazee, R.D., Krause, C.R. and Hall, F.R. 1997. Downwind residues from spraying a semi-dwarf apple orchard. Trans. ASAE 36(2):333-340.

Tappan, C., Krause, C.R. and Powell, C.C. 1997. The use of electron beam analysis to determine the deposition of chlorothalonil smoke particles in greenhouses. J. Environ. Hort. 15(1):19-22.

Krause, C.R., Horst, L. E and Hoitink, H.A.J.. 1997. Morphological and chemical properties of plastic residues in compost. Scan. Microsc. (In Press). Panciera, M.T. and Krause, C.R. 1997. Effects of chemical drying agents on the fine structure of alfalfa cuticles and epidermal waxes. Crop Science (In Press).

C. R. Krause, L. E. Horst, H. A. J. Hoitink, L.V. Madden. 2000.  Control of Botrytis cinerea on Tuberous Begonia with Calcium Chloride