Subanguina radicicola
Does the name Subanguina radicicola sound familiar? Probably not. This nematode was diagnosed from Poa annua root galls in Eastern coastal Canada. The diagnosis was conducted by Dr. Nathaniel Mitkowski, University …
Rhizoctonia
Bottom line: Rhizoctonia diseases on golf courses are almost all managed similarly, regardless of the specific strain or species of the pathogen that is involved. The most important things to know …
Overseeding pros and cons: a presentation
This presentation reviews the pros and cons of overseeding. Document is large! (1.1 MB)
Medallion mode of action
In our last PACE Update, we incorrectly noted that Medallion (Syngenta) was in the sterol synthesis inhibitor (SI or DMI) class of fungicides. In fact, Medallion’s active ingredient is a phenylpyrrole …
Southwestern rains not due to El Nino
Although El Nino conditions have been confirmed in the South Pacific, they apparently are not the cause of the increased rainfall that the Southwestern U.S. is currently receiving. Meteorologists say that …
Fusarium pach (aka pink snow mold) in cool wet weather
Fusarium patch, aka pink snow mold, can cause serious damage during wet and mild conditions that have recently occurred through the southern regions of the country. The current heavy rains in …
El Nino brings rain to the West
El Nino conditions have continued to develop and will remain through the next few months. For the West, the result will be higher than normal rainfall and increased disease pressure from …
Velocity herbicide receives federal label
The herbicide Velocity (bispyribac) has received federal registration in the U.S. State registrations must still be approved; check with your county or state ag commissioner to determine whether the product is …
January calendar of events
January 5-7. Minnesota Green Expo, Minneapolis, MN,. 888-886-6652 Minnestoa website January 6-11. Canadian International Turfgrass Conference and Trade Show, Toronto, Ontario, Canada. 905-602-8873 ext 222. Canada website January 7. GCSAA Regional …
Rapid blight goes Euro?
We have recently learned that our British colleagues in the turf industry may be sharing our pain with regards to the cool-season turf disease, rapid blight (Labyrinthula terrestris). Dr. Kate Entwistle …
December calendar of events
DECEMBER CALENDAR OF EVENTS November 30 - December 2. Illinois Professional Turf Conference, St. Charles, IL. (217) 333-7847. More information is available on the website December 6. GCSAA regional seminars: Slidell, …
Medallion receives 2(ee) for California
The fungicide Medallion (fludioxonil), which has shown good efficacy against snow mold, anthracnose and other turf diseases in university trials, has received a 2(ee) recommendation in California for use of the …
Winter time turf management
Bottom line: Turf management becomes simplified in some ways during the winter because cold temperatures inhibit or prevent the growth of most pests, as well as of turf. However, there …
Pennsylvania water quality survey
A summary of the water quality survey that we conducted in cooperation with Dr. Mike Fidanza of Pennsylvania State University can now be viewed on our website: Irrigation water quality for …
Mini-ring: a new disease on bermudagrass greens?
Dr. Bryan Unruh has prepared the attached summary on a problematic condition or disease that has been observed on bermudagrass greens for the past few years. We are working with Bryan …
Winter schedule for PACE Updates
This will be the last of your regular updates for 2004, although we will continue to keep you informed of any critical information you need to be aware of during the …
PACE Presentations at the Tri-Societies of America Meetings
Three presentations on soil nutritional guidelines for turfgrass made by PACE at the recent Crop Science Society Meetings in Seattle, WA are available below. Using soil content of plant available nitrogen …
A new disease on bermudagrass greens
Bermudagrass greens in the southern U.S. have been suffering for the past few years with what may be a new and difficult problem. Steve Davis of Bayer Environmental Science first brought …
El Nino continues to develop
The U.S. Climate Prediction Center’s most recent outlook (dated November 10) notes that the equatorial area of the Pacific Ocean has had warmer than normal temperatures for the past several months …
EVIDENCE FOR A CHANGE IN SPECIES NAME FOR COLLETOTRICHUM GRAMINICOLA (ANTHRACNOSE)
JA Crouch, BB Clarke and BI Hillman of Rutgers University have shown that poa and bentgrass anthracnose is caused by Colletotrichum cereale, and not by Colletotrichum graminicola, as had previously been …
CARFENTRAZONE (QUICKSILVER) FOR MOSS CONTROL
New information from the Agronomy/Soils/Crops Annual Meetings in Seattle, WA. Dr. Fred Yelverton of North Carolina State University has continued with his research on carfentrazone (QuickSilver T and O Herbicide) for …
Herbicide effects on gray leaf spot
New information from the Agronomy/Soils/Crops Annual Meetings in Seattle, WA. Plant pathologists and agronomists from North Carolina State University (JP Gregg, CH Peacock, HD Shew, and LP Tredway) have studied the …
EFFECTS OF FOLIAR-APPLIED NITROGEN ON CREEPING BENTGRASS COLOR
New information from the Agronomy/Soils/Crops Annual Meetings in Seattle, WA. This University of Kentucky presentation by MS Harrell evaluated the application of urea on bentgrass color. The urea nitrogen applications were …
Shade vs. turfgrass: a no-win situation?
Bottom line: The presence of shade on a golf course - from trees, buildings or overcast weather - is almost inevitable. And it’s almost always disastorous as well. Turf plants require …
Solar radiation for selected U.S. Locations
Monthly radiation averaged over a 30-year period, 1961-1990 for various U.S. locations is represented in this Table. Months shaded in blue have optimal solar radiation for cool-season turf, while months shaded …
