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SEND YOUR SAMPLES to Support Dollar Spot Research 

Funded by the New England Regional Turfgrass Foundation, Syngenta Crop Protection and the United States Golf Association, researchers at the University of Connecticut are investigating various aspects of managing dollar spot. Research will focus on improving fungicide efficacy through the proper selection of nozzle-types (See June 2006 GCM article) as well as through unconventional application timings.

In addition to developing improved management strategies, researchers will seek to determine the importance and scope of pathogen resistance to fungicides commonly used to control dollar spot. To participate in this component of the project, please send dollar spot samples from fairways and/or greens to the University of Connecticut (dollar spot samples submitted during the study will not be charged a diagnostic fee).

UCONN Turfgrass Disease Diagnostic Center
c/o John Kaminski
University of Connecticut
1376 Storrs Road, Unit 4067
Storrs, CT 06269

For more information on this research project or disease diagnostic services at UConn, please contact John Kaminski.
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Turfgrass Disease Diagnostic Center Now Open 

By Bud Gavitt

Golf course superintendents, sports and recreational field managers, and commercial lawn care operators can now submit turf samples showing signs of pest damage and physiological disorders for analysis at the Department of Plant Science’s Turfgrass Disease Diagnostic Center. Established last year by John Kaminski, assistant professor of pathology in turfgrass science in the Department of Plant Science, the center is housed in room 110 of the W.B. Young Building.

A substantial grant to purchase equipment and supplies, including microscopes, for the center was given by the New England Regional Turfgrass Foundation. This private foundation funds to research and advancement of the region’s turf industry.

The center is open daily year round but most of the diagnostic work is done during the turfgrass growing season. Kaminski makes every effort to diagnose the disorder and give recommendations on what to do to address the problem within 24 hours.

In most cases golf course superintendents and others are able to identify the problem but want it to be confirmed by Kaminski. Once the problem is identified, recommendations may include changing a cultural practice, such as increasing turf mowing height or using plant protectants to control a turf pest.

Sometimes Kaminski visits the site to see what’s going on with a difficult problem. He says problems may occur that aren’t related to disease but still may cause turf to decline. For example, there may be too much shade, too much water, or not enough nitrogen fertilizer in the soil.

Samples can be sent to: Turfgrass Disease Diagnostic Center, Department of Plant Science, UConn, 1376 Storrs Road, U-4067, Storrs, CT 06269-4067. Samples must be submitted Monday through Thursday in order to provide diagnostic services the following day. If you like, you can also contact Kaminski at (860) 486-0162 or email him at john.kaminski@uconn.edu. To cover costs, there is a fee of $50.00 for Connecticut samples and $100.00 for out-of-state samples.

Kaminski expects to have a Web site by the end of the year that will include updates on the department’s turfgrass programs and new and ongoing pest control problems.

“My goal,” Kaminski says, “is to assist turfgrass managers throughout the region with whatever agronomic problems they may have.” “An additional benefit of the Center is that learning about the problems in the field provides ideas for future turfgrass research projects.”

Homeowners can get answers to their turf and lawn care questions from the Home and Garden Education Center at (877)486-6271 or by email.
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Phoenix Environmental Care LLC Makes Donation to Turfgrass Research at the University of Connecticut 

Valdosta, GA – Phoenix Environmental Care LLC has made a donation to the turfgrass pathology research program headed by Dr. John Kaminski at the University of Connecticut.

“We have a board of advisors called ‘Friends of Phoenix’ which consist of several golf course superintendents,” says Owen Towne, Phoenix Environmental Care LLC President. “The donation is based on the recommendation of that board. We are happy to do this, because Dr. Kaminski’s work on anthracnose and other turf diseases is benefiting golf course superintendents far beyond the state of Connecticut.”

Towne says the contribution is a part of Phoenix Environmental Care’s ongoing commitment to giving back a portion of the company’s sales to organizations and universities that support the Green Industry. “We’ve done this with groups like the Wee One foundation and others, and we will continue our company policy of giving back to the Green Industry.”

“It’s great to have Phoenix supporting our efforts,” says Kaminski. “The money will be used to hire a summer technician to assist in all aspects of our turf pathology program. We continue to grow at a rapid pace, and our goal is to make a positive impact throughout New England. The funding they’ve provided will play a large role in accomplishing this.”

Dr. Kaminski was recently chosen to receive the Musser International Turfgrass Foundation Award of Excellence for 2005. A native of Upper Marlboro, Maryland, Kaminski earned a B.S degree from Penn State University in 1998. He earned his M.S. and PhD at the University of Maryland where his work involved the investigation of the biology of Ophiosphaerella agrostis and epidemiology of bentgrass dead spot.

Phoenix Environmental Care specializes in turf, nursery, ornamental and aquatic products, marketing a variety of materials to meet the needs of the Green and Aquatic Industries through unique, quality formulations and industry support.
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Anthracnose: A Five-Year Multistate Research Initiative 

John Kaminski, Assistant Professor of Turfgrass Pathology
University of Connecticut

Desired or not, annual bluegrass is commonly found on putting greens throughout the Northeast and surrounding regions. While a healthy stand of annual bluegrass can result in an excellent putting surface, the species is known to have its fair share of issues. Problems associated with managing annual bluegrass were evident during the summer of 2005, which was marked by days in which temperatures above 90F appeared to be the norm and not the exception. In addition to environmental stresses, annual bluegrass is prone to damage from routine cultural practices (e.g., low mowing, topdressing, vertical cutting, etc.) and is susceptible to a variety of turfgrass diseases. One disease in particular has drawn the attention of university researchers.

An increase in the incidence and severity of anthracnose basal rot (caused by Colletotrichum cereale) over the last 10 years has led to the development of a new Multistate Research Initiative. Towards the end of 2005, turfgrass researchers from the Northeast and other regions of the United States and Canada decided to gather their resources to address this emerging problem. Comprised of 22 turfgrass researchers, the multistate anthracnose (and annual bluegrass weevil) project will attempt to answer several questions over the next 5 years. Four main issues that will be addressed include:

Objective 1) Fill critical gaps in our understanding of the anthracnose pathogen.

An important component of this project is improving our understanding of the biology and ecology of the pathogen that causes anthracnose. Researchers will focus on identifying the geographic distribution of anthracnose and also use various methods to determine differences among strains of the pathogen. In addition to determining the distribution and spread of the pathogen, experiments will be conducted to elucidate important biological aspects of C. cereale. Laboratory and field experiments will seek to determine how and where the pathogen survives unfavorable periods and how and when infection occurs. Knowledge obtained from these basic studies will provide valuable information that will increase our understanding of the host-pathogen interaction.

Objective 2) Identify and develop new control options for suppressing anthracnose.

Research will be conducted to increase our list of management options used to reduce the severity of anthracnose. Management strategies to be evaluated include the use of biological, biorational and chemical controls. Studies will seek to improve pesticide combinations, timing regimes, and resistant management strategies. The frequency and mechanisms of Colletotrichum resistance to commonly used chemistries will also be examined.

In addition to biological and chemical controls, coordinated field studies will evaluate the impact of various cultural practices on the development of anthracnose. Strategies will seek to determine the influence of nitrogen rate and source, plant growth regulators, and other cultural practices (e.g., mowing, verticutting, irrigation, etc.) on disease severity. Currently developed annual bluegrass cultivars will also be assessed in field studies to determine their potential benefits on newly established putting surfaces. Results from these field and greenhouse studies will provide valuable information applicable to managing this disease on golf courses.

Objective 3) Develop improved IPM decision tools for managing anthracnose on golf courses.

In addition to determining management strategies that directly impact anthracnose severity, researchers will attempts to determine the influence of environmental conditions (temperature, humidity, leaf wetness, etc.) on anthracnose. Using information gathered from field and greenhouse studies, a predictive model for anthracnose will be constructed from environmental variables and key management factors. Results from these investigations will allow turfgrass managers to forecast anthracnose development and therefore implement the appropriate disease management strategies prior to the onset of severe damage.

Objective 4) Develop best management practices for annual bluegrass on golf courses to help reduce economic and environmental costs.

Following the collection and interpretation of research results obtained from these studies, pertinent findings will be shared directly with golf course superintendents. Results from all participants in this study will be combined to develop a best management practices publication for annual bluegrass. Research findings will also be distributed in the form of publications, annual meetings and symposium sessions, and regional workshops through the Northeast.

Ultimately, this project will allow researchers from around the region to work together to solve a problem facing golf course superintendents. By combining our efforts, we hope to speed the gathering of information and avoid overlap and duplication of research efforts. Finally, the consolidation of information from all researchers in a single location (Multistate Website to be introduced in 2006) will make it easier for golf course superintendents to find information about relevant research in their region.

Although this project involves numerous turfgrass researchers, the participation of golf course superintendents will be essential to the success of the project. In the coming months, you will be asked to participate in a survey that will provide valuable information for this project. Other ways you can contribute include the communication of information about anthracnose at your facility, the submission of suspected anthracnose samples to participating university diagnostic labs, and the use of your golf course for various field studies related to the project.

Researchers are optimistic about finding improved management strategies for suppressing anthracnose. Results obtained over the next five years will play a key role in our understanding of the pathogen and management of this increasingly devastating disease. For more information about this project, contact John Kaminski at the University of Connecticut.
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UConn Professor Nabs Musser 

John Kaminski, Ph.D., a recent graduate from the University of Maryland in plant pathology, has been chosen to receive the Musser International Turfgrass Foundation Award of Excellence for 2005. The annual award is presented to an outstanding doctoral student of turfgrass science who has made significant and innovative contributions to turfgrass science research. This year’s award winner also received a $20,000 cash award.

A native of Upper Marlboro, Md., Kaminski earned a bachelor’s degree from Penn State University in 1998 and earned his master’s and Ph.D at the University of Maryland, where his work involved the investigation of the biology of Ophiosphaerella agrostis and epidemiology of bentgrass dead spot.

Kaminski is currently an assistant professor of turfgrass pathology at the University of Connecticut. His appointment is 70 percent extension and 30 percent research and he serves as the director of the UConn Turfgrass Disease Diagnostic Center.

Since 2000, Kaminski has published 60 peer-reviewed scientific papers, progress/field day research reports, abstracts, extension publications and popular articles. His speaking activities included various guest lectures at the University of Maryland as well as invited speaking engagements at the 2001 International Turfgrass Research Conference and Rutgers Annual Turfgrass Management Symposium.

Kaminski began working in the turfgrass industry as an intern at Desert Mountain Properties in Scottsdale, Ariz. While attending Penn State, he also interned at Congressional Country Club and the Valentine Turfgrass Research Facility.

During his graduate studies at the University of Maryland, Kaminski worked under the direction of Dr. Peter Dernoeden. His involvement in the turfgrass science program included conducting basic and applied research, assisting in turfgrass disease diagnostics and guest lecturing in the areas of turfgrass science and plant pathology.

His initial work defined the geographic distribution of the pathogen and various aspects of the pathogen’s growth and reproduction. The final phase of his research involved a closer look at the environmental conditions favoring disease development. In addition to his applied research, he conducted studies to assess the genetic diversity of O. agrostis and also developed a molecular technique that allows for the rapid detection of the pathogen within infected plants.

“John has been the most remarkable graduate student that the U. of Maryland turfgrass program has ever experienced,” Peter Dernoeden, Ph.D. at the University of Maryland says. “He has a superior intellect, he is self-motivating and an intense researcher, and he has an outstanding work ethic. His accomplishments as a graduate student have been truly exemplary.”

Kaminski’s career goals are to:
Develop a productive and successful turfgrass pathology research program at the University of Connecticut;
Elucidate unknown biological and epidemiological aspects of important turfgrass pathogens and their respective diseases;
Develop improved chemical and cultural techniques for managing turfgrass diseases; and
Standardize and simplify the methods used to identify turfgrass diseases.

Named in memory of turfgrass scientist professor H. Burton Musser, the Musser International Turfgrass Foundation is dedicated to fostering Turfgrass Management as a learned profession.
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