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June 19, 2013

Here is some additional information on the bermudagrass on the Dowling High School baseball field in West Des Moines, Iowa.  The pictures are from Eric Van Ginkel of the Iowa Cubs, who is involved in the care of the field.  It shows the problem of bermudagrass stolons encroaching on the infield.  This is not a problem with the Kentucky bluegrass or perennial ryegrass, because neither has a spreading rhizome.  If any of you involved in sports turf management have noticed this on your fields recently, it is likely either bermudagrass of Zoysiagrass.  While Zoysia is more common in Iowa turf, the bermudagrass is increasing in the region and has the most aggressive stolon growth of the two species.  We are also seeing more of it in Iowa lawns.  Watch for stolon growth over the sidewalks and drive ways.




November 22, 2010

This is a final summary on the recovery of the intramural field on campus that was damaged during the flood in August.

The first picture was taken a few days after the flood. The bluegrass/rye turf is dead. The grasses that survived are all warm-season grasses. Most of it is Bermudagrass, but there is also Zoysiagrass and Buffalograss on the site. This grass was established over the steam tunnel several years ago.

The second picture shows Kentucky bluegrass beginning to recover from rhizomes. It was taken a couple of weeks after the flood waters receded.

The third picture shows one of the turf lab groups on the site in September. They are standing on the warm-season grasses. The surrounding area was reseeded shortly after the flood and the blue/rye area has nearly recovered.

The final picture was taken in November of 2010. The blue/rye area has completely recovered and the warm-season grasses have gone dormant for the season. Little by little, the campus is returning to normal. The final bill for the flood damage was in the range of 50 million dollars.



August 24, 2010

These two pictures are both from the intramural field on ISU campus. The first one is from last November. It shows a strip of warm season grasses that have been planted on the steam tunnel that runs through the area. They include bermudagrass, zoysiagrass, and buffalograss. They are all dormant as would be expected in November. The Kentucky bluegrass/perennial ryegrass turf is green.

Now look at this picture taken yesterday, Aug. 23, 2010, approximately two weeks after the flood. This area was completely under water for at least 3 days. The bluegrass/rye is dead (although I think the rhizomes of the bluegrass are alive) and the warm-season grasses have recovered. This is a good demonstration of how well warm-season species can take flooding.



August 14, 2010

Greetings from Hong Kong. I am having a great time and learning a lot.

Here is a picture of Damian Richardson, intern at Hong Kong Golf Club, pointing to the tropical carpetgrass rough. This is a very unusual species. The only other place that I have seen used in golf is Jamaica. It makes a great rough here, because it is not very invasive into the other turf areas. The fairways are an interesting combination of bermuda and zoysia.

Here is a close up of the tropical carpetgrass. The leaves remind me of miniature corn leaves. It has a dense stoloniferous growth habit and lays flat along the ground surface.

The local Chinese don't like exposure to the sun. Notice the hats that the cadies wear and the long sleeves.

Here is one of those local problems. Giant snails that tend to get on greens and cause problems for greens mowers.