Research Leader and Research Plant Pathologist, USDA, ARS, Application Technology Research Unit (ATRU) and Adjunct Associate Professor, Plant Pathology (Wooster)

> USDA ARS Web site

Research Interests

Major research focuses on formulating theories of phylloplane interactions between plant pathogens, host cuticular structures and pesticide residue with either on-farm or laboratory. Current and projected long-term efforts involve discovering alternatives to conventional fungicides for control of diseases of floral and nursery crops other research focuses on comparison of various delivery systems and their impact on improved disease management.

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 (2006-2008)

• Krause, C.K., Derksen, R.D., Horst, L.E., Zhu, H. and Zondag, R.  2008.  The effects of sprayer configuration on efficacy for the control of scab on crabapple using electron beam analysis.  Scanning  (in press).

• Frantz, J.M., Locke, J.C., Datnoff, L.E., Omer, M.A., Widrig, A.K., Sturtz, D.S., Horst, L., and Krause, C.R.  2008.  Detection, distribution, and quantification of silicon in floricultural crops utilizing three distinct analytical methods.  Com. in Soil Science and Plant Analysis 39:  2734-2751.  

• Derksen, R.C., Frantz, J., Ranger, C.M., Locke, J.C., Zhu, H., and Krause, C.R.  2008.  Comparing greenhouse handgun delivery to poinsettias by spray volume and quality.  Trans. ASABE.  51(1):27-33. 

• Yu, Y., Zhu, H., Ozkan, H.E., Derksen R.C., Krause, C.R. 2008. Evaporation and deposition coverage area of droplets containing insecticides and spray additives on hydrophilic, hydrophobic and crabapple leaf surfaces. Trans. of the ASABE. Submission date: (in press)

• Zhu, H., Brazee, R.D., Fox, R.D., Derksen, R.C., and Ozkan, H.E. 2008. Development of a canopy opener to improve spray deposition and coverage inside soybean canopies -- Part 1: Mathematical models to assist opener development. Trans of the ASABE. (in press)

• Zhu, H., R.D., Derksen, R.C., and Ozkan, H.E., Reding, M.E., Krause C.R   2008. Development of a canopy opener to improve spray deposition and coverage inside soybean canopies -- Part 2: Opener design with field experiments. Trans. of the ASABE. Submission date: 4/22/2008.

• Derksen, R., Zhu, H., Fox, R., Brazee, R., and Krause, C. 2007. Coverage and drift produced by air induction and conventional hydraulic nozzles used for orchard applications.  Trans.ASABE 50(5):1493-1501.

• Derksen, R., Heping, Zhu, H., Fox, R., Brazee, R., and Krause, C. 2006. Coverage and drift produced by air induction and conventional hydraulic nozzles used for orchard applications. Trans.ASAE 49(2): 325-334.

• Derksen, R., Krause, C., Fox, R., Brazee, R., and Zondag, R. H. 2006. Effect of application variables on spray deposition, coverage, and ground losses in nursery tree applications. J. Environ. Hort. 24(1): 45-52.

• Frantz, J., Krause, C., Locke, J., Ghose, S., Smiser, R., and Buckingham, L. 2007. Virtual grower manual version 1.1. Available: http://www.ars.usda.gov/SP2UserFiles/Place/36071000/Publications/ManualforVirtual Grower 1.1.pdf

• Frantz, J., Locke, J., and Krause, C. 2007. The new computer program virtual grower will help in greenhouse management. Ohio Floriculture Online Volume 13; Issue 1. Available: http://floriculture.osu.edu/archive/feb06/Virtual%20Grower.html. Log# 193403.

• Frantz, J., Krause, C., Locke, J., Ghose, S., Miser, R., and Buckingham, L. 2006. Virtual Grower version 1.1 Manual. Log # 0000198393

• Guler, H., Zhu, H., Ozkan, H., Derksen, R., and Krause, C. 2007. Wind tunnel evaluation of drift reduction potential and spray characteristics with drift retardants at high operating pressure. American Society for Testing and Materials. 3(5):1-9.

• Guler, H., Zhu, H., Ozkan, H., Derksen, R., Yu, Y., and Krause, C. 2007. Spray characteristics and drift reduction potential with air induction and conventional flat fan nozzles. Trans.ASABE. 50(3):745-754.

• Guler, H., Zhu, H., Derksen, R., Krause, C., and Ozkan, H. 2006. Foliar deposition and off-target loss with different spray techniques in nursery applications. Trans.ASAE 49(5): 1285-1294.

• Guler, H., Zhu, H., Ozkan, H., Derksen, R., Yu, Y., and Krause, C. 2006. Spray characteristics and drift potential with air induction and conventional flat fan nozzles. Trans. ASTM 3(5):1-9.

• Palumbo, R., Hong, W., Hu, J., Craig, R., Locke, J., Krause, C., Tay, D., and Wang, G. 2007. Target Region Amplification Polymorphism (TRAP) as a tool for detecting genetic variation in the genus Pelargonium. HortScience 42:1118-1123.

• Pitchay, D., Frantz, J., Locke, J., Krause, C., and Fernandez, G. 2007. Impact of Applied Nitrogen Concentration on Growth of Elatior Begonia and New Guinea Impatiens, and Susceptibility of Begonia to Botrytis cinerea.  J.Amer.Soc.Hort.Sci. 132:193-201.

• Zhu, H., Frantz, J., Derksen, R., and Krause, C. 2007. Investigation of drainage and plant growth from nursery container substrate. Applied Engineering in Agriculture 23(3):289-297.

• Zhu, H., Brazee, R., Derksen, R., Fox, R., Krause, C., and Ozkan, H. 2007.  Specially designed air-assist sprayer to improve spray penetration and airjet velocity distribution inside dense nursery crops. Trans.ASABE 49(5):1285-1294.

• Online Publication: "Keeping Pesticides on Target" (Adobe .pdf format)

Contact Information

Chuck Krause
USDA Agricultural Research Service
Application Technology Research Unit
The Ohio State University
204 Agricultural Engineering Building
1680 Madison Avenue
Wooster, Ohio 44691

Phone: (330) 263-3676
Email: krause.2@osu.edu