Cale Bigelow

Cale Bigelow's website
Professor of Horticulture

43 articles by this author

Turf Tips List

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…Read more about Fertilizer Calculator Now Available[Read More]


Interactive Turfgrass Identification Tool now available

After about 9 months of development a concept of mine has finally borne fruit.  This week we rolled out the interactive, self-guided, online turfgrass identification tool, located at: http://www.agry.purdue.edu/turf/tool/index.html. Now you can probably identify the mystery grass in your lawn from the comfort of your own computer. If you still can’t identify it, you can always…Read more about Interactive Turfgrass Identification Tool now available[Read More]


Fertilizing Sports Turf

Fertilizing sports turf is critical in order to maintain turf vigor in spite of intense wear and tear. However, too little fertilizer or poorly timed fertilizer are common mistakes on sports complexes. Following are our recommendations for sports field fertilization:  Apply fertilizer just prior to the season to insure aggressive growth  Apply60% or…Read more about Fertilizing Sports Turf[Read More]


Phosphorus Fertilization in Turf

Phosphorus (P) fertilization of turf is being questioned nationally for two reasons. Phosphorus fertilization almost never induces a visual turfgrass response and deficiency symptoms are rarely seen, thus calling into question the need for P fertilization. Secondly, higher levels of P contribute to algal blooms and decrease water quality of ponds, lakes, and streams. Since…Read more about Phosphorus Fertilization in Turf[Read More]


Late May is Good Time to Fertilize Lawns

The annual phase of rapid cool-season shoot growth of cool-season grasses is nearly complete, though it was diminished this year because of the dry and cool weather. It’s now time to consider fertilizing your lawn because fertilizer now will not dramatically increase vertical growth as long as moderate nitrogen rates are used and it will…Read more about Late May is Good Time to Fertilize Lawns[Read More]


Bentgrass Species and Cultivar Selection Impacts Annual Bluegrass Invasion in Renovated Bentgrass Fairways

Along with the warmer spring temperatures two things are certain; crabgrass will eventually germinate and annual bluegrass will profusely flower. For anyone managing bentgrass fairways or considering a bentgrass fairway renovation some of our recent research results will be of particular interest and provide some food for thought.  There has been some mild interest in…Read more about Bentgrass Species and Cultivar Selection Impacts Annual Bluegrass Invasion in Renovated Bentgrass Fairways[Read More]

 Categories:

Buyer Beware: Annual Ryegrass is Not a Persistent Turfgrass Species for Indiana Homelawns

There are many cool-season turfgrasses suitable and adapted to home-lawns in Indiana. They include; Kentucky bluegrass, turf-type tall fescue, fineleaf fescue and to a certain extent even “perennial” ryegrass. Many new lawns are established using seed because it is much less expensive than sod. Unfortunately, in many instances inexperienced homeowners or landscape contractors often purchase…Read more about Buyer Beware: Annual Ryegrass is Not a Persistent Turfgrass Species for Indiana Homelawns[Read More]

 Categories:

November Lawn Fertilization

Up until about two weeks ago, autumn 2004 was for the most part a fairly dry season. This means that if you fertilized your cool-season lawn in early September and were unable to regularly irrigate, the nitrogen that was applied probably was not used very effectively by the turfgrass plant. If you missed that fertilizer…Read more about November Lawn Fertilization[Read More]


 Publication Categories:


Late-summer Aerification check-List

Although this past growing season across most of Indiana has been cool and moist this is no reason to consider skipping fall core cultivation or aerification. In fact, this abnormal weather pattern is actually more conducive to thatch accumulation since many of the microbes responsible for organic matter break-down are less active in these conditions….Read more about Late-summer Aerification check-List[Read More]


Dealing With Flood Damage

Though flooding damage so far this year is not as bad as last year, a number of areas have been hard hit with rainfall the last week (see the photo of Lafayette Municipal Golf Course). We don’t expect damage to be as extensive as last summer given the slightly lower temperatures, but some areas will…Read more about Dealing With Flood Damage[Read More]


Time to consider a change…?

We are finally getting near the end of the spring growth flush for our major cool-season lawngrass species like Kentucky bluegrass, ryegrass and tall fescue. With a little help from mother-nature, hopefully mowing will be more manageable from here on out. During the past few weeks you may have noticed a decline in overall appearance…Read more about Time to consider a change…?[Read More]


Localized Dry Spot Returns for 2004

For those of you managing sand-based putting greens you may have noticed some turf areas that don’t seem to be vigorously growing even with the recent heavy rainfalls or regular irrigation (photo). Looking back, April and the early part of May was a challenging time for turf managers trying to manage water on the golf…Read more about Localized Dry Spot Returns for 2004[Read More]


Dormant Sand Topdressing. Does it help Creeping Bentgrass Spring Green-up?

A research study was initiated at Purdue University to evaluate two sand topdressing products for their ability to enhance creeping bentgrass spring green-up. Treatments were applied at three application rates in the third week of January 2004 to a ‘Crenshaw’ creeping bentgrass stand being grown on a native soil rootzone. Observations to date indicate that…Read more about Dormant Sand Topdressing. Does it help Creeping Bentgrass Spring Green-up?[Read More]