Turf Tips Archives
How late can you seed?
We are out of the optimum window for seeding turfgrasses in Indiana. However, many are still hoping to seed. Following is a summary of our studies in the early 90’s on seeding at less than optimum times of the year. For optimum establishment, seeding should be done in late August or early September. Waiting as […]
Tough Year for Turf in Indiana
The summer’s heat and humidity have taken an unusually high toll on turf in lawns, athletic fields, and golf courses. Most of the decline can be attributed to poor root growth weakening cool-season grasses and starting an avalanche of secondary factors leading to further decline. Root growth of cool-season grasses reaches a peak in mid-spring […]
No Rush on Broadleaf Weed Applications
After the rains have returned, broadleaf weed herbicides should become effective. However, don’t be in too much of a rush to apply because our data suggests that better control is obtained with October applications in than in September. We found that herbicides applied from October 1 through November 1 improved long-term ground ivy control compared […]
September is a Crucial for Fertilizing All Cool-Season Turfs
With the returning rains in the state, now is the most important time to fertilize cool-season turfgrasses like creeping bentgrass, Kentucky bluegrass, perennial ryegrass, and tall or fine fescue. September fertilization is crucial on all turf areas regardless if it is a lawn, athletic field, or golf course green, tee or fairway. Fertilization in mid-September […]
Time is Running Out to Seed Your Lawn
It now almost too late to seed this fall to expect the seedlings to form a good stand before winter, especially with the dry conditions that remain in the forecast. The optimum time to seed cool-season turfgrasses is between Aug. 15 and Sept. 15 in central IN, a week earlier in northern IN, and a […]
Rust in Turf
A few rust calls are starting to trickle in, which is typical at this time of the year. Rust symptoms are reddish-orange lesions or spots on the leaf blades and a rust-colored powder that you can rub off with your fingers. Rust will rarely kill a turf area, but it can thin a turf stand […]
Controlling Sandbur
The dry summer allowed sandbur to get a competitive edge over the other lawn grasses on the sandy soils in northern Indiana. Most people don’t realize they have sandbur in their lawn until they come into painful contact with it, and unfortunately it is too late to do anything about it then. Sandbur is an […]
Hands-on Learning at the Turf and Ornamental Seminar in Nov.
Mark your calendars for Nov 15-16 for MRTF’s Turf and Ornamental Seminar. Like last year, the course is advanced for lawn care, golf course, sports turf, and sales staff. Topics include recovery from summer damage, bill bugs and white grubs, patch diseases, managing the toughest weeds, and weed ID. A number of new ornamental speakers […]
MRTF Golf Day at Coyote Crossing on Oct. 13
Openings are still available for the MRTF Golf Day on Oct 13 at the Hale Irwin-designed Coyote Crossing Golf Club in West Lafayette. This is the seventh annual event held to promote turfgrass research, raise awareness of the Purdue Turfgrass Science Program, and provide an enjoyable day of golf. It’s an early morning event starting […]
Turfgrass nematode damage? … Sample to be sure!
Random patches of wilted turfgrass that are unresponsive to irrigation, assume a gray/green appearance and then turn tan/brown just before dying MAY be suffering from nematodes. These symptoms are somewhat characteristic of several diseases, insect infestations and even environmental stresses, so when making a determination, all possible causes must be considered. The symptoms of nematode […]
Banner Year for Crabgrass and Nutsedge
With the heat and humidity of this summer, our cool-season grasses continue to thin making it one of the better years in recent memory for crabgrass and nutsedge. In Lafayette, we’ve had 50 days of temperatures higher than 85F, 18 of which were over 90F. Maximum photosynthesis and shoot growth of cool-season grasses occur between […]
White Grub Damage
Reports of turfgrass damage due to white grub feeding are beginning to trickle in. Damage potential seems to be widely variable this year. Some areas that were dry during the beetle egg laying season last year reported very few Japanese beetles during the entire summer. Other areas, especially in the central and southern portion of […]
Gray Leaf Spot Update
There have been numerous reports of gray leaf spot outbreaks throughout Indiana and the lower Midwest during the past three weeks. We generally expect that hot humid conditions will favor gray leaf spot development. However, you may recall that outbreaks also occurred during the summer of 2004, a year in which temperatures reached 90 F […]
Turf 101: Optimum temperatures for seed germination
We’ve just entered the optimum seeding window for cool-season grasses throughout the state of Indiana. Though seed will germinate at a wide variety of temperatures, the optimum temperatures for germination are in the table below. The temperatures listed are air temperatures which would be almost identical to that in on the surface of the soil […]
Now is the Time to Start Improving Your Lawn
Tired of the way your lawn looks? If it hasn’t looked up to par this summer with the relatively good weather, it never will and reseeding your lawn is an option. Mid-August is the best time to seed a new lawn or overseed an existing lawn. If the lawn is just thin and needs a […]
Fertilizer Calculator Now Available
With the fall fertilization for cool-season turfgrasses just around the corner I wanted to take a moment to make you aware of another interactive tool that is now available. This tool is intended to help you determine your fertilizer needs. The fertilizer calculator and is located at: http://www.agry.purdue.edu/turf/fertcalc/Fertilization calc.html With this information you can ensure you are […]
Purdue Turfgrass Research Report Available On-Line
The summary of our turfgrass research in the year 2004 is now available at http://www.agry.purdue.edu/turf/report/2004/index.htm. The overall goal of our research program is to minimize inputs while maintaining turf quality, minimizing costs, and further protecting our environment. Our research summary contains over 40 reports of on-going research at Purdue University. The report is a cooperative effort […]
Turf Field Day Held July 26
Thanks to everyone who attended and helped make the 2005 Midwest Regional Turf Field Day a success on Tuesday, July 26. A hot steamy day with thankfully a brisk breeze greeted the almost 750 attendees. Attendees had the opportunity to view the latest in turfgrass research, visit with Purdue specialists, see the most modern equipment […]
Summer stress of Poa annua, Poa trivialis on Golf Courses
Persistent air temperatures of 90F and soil temperatures greater than 80F combine with high humidity and adequate rainfall (in some areas) is doing in the Poa annua (annual bluegrass)and Poa trivialis (rough bluegrass)on golf courses. After a week or two of these conditions, Poa annua greens and fairways will start to thin and die in […]
Summer stress of Poa annua and Poa trivialis in Lawns and Sports Fields
Persistent air temperatures of 90F and soil temperatures greater than 80F combine with high humidity and adequate rainfall (in some areas) is also doing in the Poa annua (annual bluegrass)and Poa trivialis (rough bluegrass)on lawns and athletic fields. Patches of these fine-bladed grasses seemingly die overnight with even a minimum of drought stress. Though these […]