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Category: Turfgrass News

K-State Radio Network “Plantorama” – Home Lawn Winterkill

(By Jared Hoyle, KSU Turfgrass Research and Extension)

HOME LAWN WINTERKILL– It was a fairly harsh winter in this region.  And that has homeowners wondering if their lawn grasses were adversely affected by the extended cold and wet conditions. K-State turfgrass specialist Jared Hoyle says while the likelihood of outright turfgrass winterkill is relatively low, some limited damage may have occurred.

Click the link below for K-State Research and Extension Agriculture Today Radio Program “Plantorama” hosted by Eric Atkinson.

Check out the KSRE bookstore more more information on all things turf! – https://www.bookstore.ksre.ksu.edu/Category.aspx?id=528&catId=545

Always remember to READ THE LABEL for the correct rate, turfgrass tolerance, and specific instructions before application!!!

***Mention of trade names or commercial products in this article is solely for identification purposes and does not imply recommendation or endorsement, nor is criticism implied of similar products not mentioned by Kansas State University.***

Don’t forget to follow me on twitter @KSUTurf.

Also, visit our facebook page www.facebook.com/KSUTurf

KGCSA Cliff Dipman Internship Award

***Update: The KGCSA voted at their board meeting yesterday to include an internship (either at Rocky Ford or in Olathe) to be included in the Cliff Dipman Internship Award.

KGCSA Cliff Dipman Internship Award

The KGCSA Cliff Dipman Internship Award consists of two $2,000 awards to Kansas State University students working at a golf course whose superintendent is a member of the KGCSA. One will be directed to a student doing an internship at a 9-hole golf course or working at one of the K-State Research Centers (Rocky Ford in Manhattan or in Olathe), and one doing an internship at an 18-hole facility. Applications will be reviewed by the KGCSA Board of Directors. All decisions of the committee will be final. Applicants will be notified of their status by March 30 of the year submitted.

Requirements:
• Must already be enrolled in a 4-year undergraduate turfgrass program at Kansas State University.
• Must intend to complete a 3- or 6-month internship at a golf course in the state of Kansas whose superintendent is a member of the KGCSA, or work at one of the K-State research stations (Manhattan or Olathe).
• One award will be available for a 9-hole intern (or at one of the K-State research stations in Manhattan or Olathe) and one for an 18-hole intern.
• Return completed application to: KGCSA Awards Program, 1712 Claflin, 2021 Throckmorton, Manhattan, KS 66506 or cdipman@ksu.edu by March 15, 2019.
• Applications can be downloaded from the KGCSA website, found here.

About the Namesake:
Cliff Dipman was the Golf Course Superintendent at Manhattan Country Club for 32 years. He has served as a mentor to countless students who have become successful golf course superintendents in Kansas and across the United States. Year after year, Cliff recognized the importance of the internship in complementing academics.

Support the KSU Turfgrass Students and Have Fun!

Come out on September 30th to Colbert Hills Golf Course and play in the Kansas State University Golf Course Superintendent Student Chapter Fundraiser Golf Tournament!

This is a great way to show your support to the future of the turf industry and the students all while having some fun on the golf course.

If you can’t make it show your support by sponsoring a hole.

See information about signing up below!.

Guess what KS city is listed as #7 in the Top 10 Worst Cities for Weeds and Disease for 2018?

(By Jared Hoyle, KSU Turfgrass Research and Extension)

As I was looking through some news articles I came across this one that caught my eye.

 “Top 10 Worst Cities for Weeds and Disease in 2018”

I couldn’t wait to click the article and see what the National Association of Landscape Professionals listed as the top 10 worst cities for weeds and disease.  It was also pretty interesting how they came up with these cities.  Check it out!

Guess what KS city is listed as #7?

http://www.kltv.com/story/37912381/weed-watch-the-top-10-worst-cities-for-weeds-and-lawn-disease-in-2018

 

“The grass is always greener” – national media story about sports turf

Green industry professionals often work behind the scenes without much publicity. However, there was a great story this weekend about what goes on behind the scenes at Nationals Park on NPR.

You read the text and see photos here, or click to listen to the recorded interview.

https://www.npr.org/2018/04/07/600482865/the-grass-is-always-greener-at-the-baseball-field

 

 

K-State Radio Network “Plantorama” – Early Cool-Season Lawn Care

(By Jared Hoyle, KSU Turfgrass Research and Extension)

With spring officially here, homeowners should start paying attention to the condition of their cool-season lawns…especially in view of the dry conditions that persist in this region. Early-season watering of fescue and other cool-season turfgrass is especially important this year, according to K-State turfgrass horticulturist Jared Hoyle. He talks about proper watering and fertility management this week.

Click the link below for K-State Research and Extension Agriculture Today Radio Program “Plantorama” hosted by Eric Atkinson.

Check out the KSRE bookstore more more information on all things turf! – https://www.bookstore.ksre.ksu.edu/Category.aspx?id=528&catId=545

Always remember to READ THE LABEL for the correct rate, turfgrass tolerance, and specific instructions before application!!!

***Mention of trade names or commercial products in this article is solely for identification purposes and does not imply recommendation or endorsement, nor is criticism implied of similar products not mentioned by Kansas State University.***

Don’t forget to follow me on twitter @KSUTurf.

Also, visit our facebook page www.facebook.com/KSUTurf

Irrigation Installation at Rocky Ford Turfgrass Research Center

(By Jared Hoyle, KSU Turfgrass Research and Extension)

The KSU Turfgrass Research Group sends a sincere “thank you” to all who helped in any way to install the new irrigation system on March 23-24, whether by providing equipment, labor, or food and refreshments. We were overwhelmed by the support provided by the Kansas turfgrass industry and are extremely grateful.

We look forward to providing updates from future research conducted with the new system that will benefit Kansas turf managers. This new research project is in cooperation with the USGA and the Toro Co. The goal of the project is to improve the use of soil moisture sensors to control irrigation while minimizing water applications and maintaining good quality turf. This will require 3 years of intensive study of the science of using these sensors.

Also, a big thank you to Nic Youngers, Jasen Sare, Austin Murphy and Shawn Spann for aerifying the research green at Rocky Ford and to WinField for donating the ferti-lizer!

Thanks to our refreshment/lunch sponsors: Bayer Dow Agro Sciences Helena PBI-Gordon Supreme Turf WinField

Also, Thank You to all the volunteers who assisted and donated equipment to make the irrigation install a success!

Al Alspach, Mater Landscape, Inc.

Dale Bremer, KSU

Leon Brown, Schwab-Eaton

Jeff Chaffee, Master Landscape, Inc.

Rob Christie, Firekeeper GC

Cliff Dipman, KSU

Kevin Fateley, Wildcat Creek Fun & Fitness

Seth Gieber, Manhattan CC

Jared Hawkins, Master Landscape

Nate Ratzlaff, Cottonwood Hills GC

Jasen Sare, Stagg Hill GC

Shawn Spann, WinField

Derek Taussig, Taussig Landscape

Charlie Thompson, Willowbrook GC

Mark Willmore, KSU

Mingying Xiang, KSU

Nic Youngers, Rolling Meadows GC

Mu Hong, KSU

Wes Kleffner, Bayer

Frank Kohman, Cool Springs GC

Will Mann, Schwab-Eaton

Matt Miller, Carey Park GC

Nic Mitchell, KSU

Austin Murphy, Indian Hill GC

Shane Myers, Foley Equipment Co.

We still have more to install so if you didn’t get out and was able to help we will have another work day to finish out the entire area!

Thanks again!

 

Influence of Tall Fescue Baseball Infield Mowing Height on Ground Ball Speed

Influence of Tall Fescue Baseball Infield Mowing Height on Ground Ball Speed

( By Jared Hoyle, KSU Turfgrass Research and Extension and Gage Knudson, KSU Turfgrass Undergraduate Research Assistant)

Summary. Athletic field conditions have shown to influence playability. Results of ball-roll speed studies can be used to predict success of infield hits. Field trials were conducted at Rocky Ford Turfgrass Research Center to determine the influence of tall fescue baseball infield mowing height on ground ball speed and batter on-base success. Mowing heights of 2.5, 5, and 7.6 cm resulted in 1.77, 2.08 and 1.88 s ground ball times, respectively.

Rationale. Tall fescue [Schedonorus arundinaceus (Schreb.)] is a drought tolerant turfgrass species commonly used as a baseball infield playing surface. Cultural management practice studies on athletic surfaces have shown direct influences on playability. Minimal information exists on the influence of infield mowing height and ball-roll speed. Results of ball-roll speed studies can be used to predict success of infield hits.

Objectives. Determine the influence of tall fescue baseball infield mowing height on ground ball speed and batter on-base success.

Study Description. Research trials were initiated on November 21, 2016 at the Rocky Ford Research Center (RF) in Manhattan, KS to determine the influence of tall fescue baseball infield mowing height on ground ball speed and batter on-base success. Research trials were conducted on 30.5 m long simulated tall fescue infield. Two experimental runs were conducted on three different infield mowing height treatments; 2.5, 5, and 7.6 cm. Six individual replications of a simulated ground ball were applied to each infield condition and experimental run. Ground balls were applied with a pitching machine set to 112.6 kph. Simulated ground balls were timed in seconds (s) from simulated pitched ball and bat contact (insertion into machine) to baseball fielder location (30.5 m distance). Successful infield hits were calculated using constant athletic ability data and infield ball-roll data. Data was subjected to ANOVA in SAS and means were separated according to Fisher’s protected LSD at 0.05 significance level.

Results. Mowing heights of 2.5, 5, and 7.6 cm resulted in 1.77, 2.08 and 1.88 s ground ball times, respectively (Figure 1). Utilizing ground ball speed results, researchers were able to predict that a simulated batter, if a ground ball was hit to the shortstop position (30.5 m distance), would result in an unsuccessful at bat if a tall fescue infield was mown at 2.5 cm and successful if mown at 5 and 7.6 cm, utilizing consistent player athletic ability data (Figure 1 and Table 1).

The Effect of Human Insect Repellents on Perennial Ryegrass (Lolium perenne) Growth and Recovery

The Effect of Human Insect Repellents on Perennial Ryegrass (Lolium perenne) Growth and Recovery

(By Jared Hoyle, KSU Turfgrass Research and Extension and Peyton South, KSU Turfgrass Undergraduate Research Assistant)

Summary. Turfgrass damage has been observed from misapplications of human insect repellents. Minimal research has been conducted to determine the cause of the damage. Greenhouse research trials were conducted to survey various human insect repellents on turfgrass growth and recovery. Insect repellents resulted in a wide range of damage. No common trend was observed although research trial shows possible repellents to be utilized around turfgrass that will minimize turfgrass injury.

Rationale. Human insect repellents containing diethyltoluamide (DEET) commonly damage turfgrass due to non-target application. Common visual damage results in two areas of healthy growing turfgrass in the shape of footprints with necrotic and chlorotic turfgrass surrounding. Damage results in unacceptable turfgrass quality and playability. Minimal research has been conducted to explore the influence of human insect repellents on turfgrass injury and recovery.

Damage from bug spray misapplication to turfgrass.

Objectives. Evaluate the influence of human insect repellants on Perennial Ryegrass (Lolium perenne) growth and recovery.

Study Description. Research trials were initiated in November of 2016 at the Throckmorton Plant Sciences Center Greenhouses in Manhattan, KS to determine the influence of human insect repellents on perennial ryegrass (Lolium perenne) growth and recovery. Perennial ryegrass was established in 10 by 10 cm pots at 387 kg ha-1, maintained at 4.4 cm and were irrigated to prevent drought stress. Greenhouse environment was a 12 hr photoperiod at 15.5°C/ 22.2°C (night/day). Insect repellent treatments were applied to perennial ryegrass plants arranged in a randomized complete block design with 4 replications. Treatments included 9 insect repellents and a non-treated control for comparison (Table 1). Five treatments contained the active ingredient DEET. Other commonly used insect repellents were also included for comparison. Collected data included visual percent injury on a 0%- 100% scale, where 10% represented maximum acceptable injury. Data was subjected to ANOVA in SAS and means were separated according to Fisher’s protected LSD at 0.05 significance level.

Results. All treatments except the control resulted in at least 6% turfgrass injury 1 day after application (DAA). Repel Max (40% DEET) and Off Active (15% DEET) resulted in 68% and 30% injury, respectively 21 DAA. At 21 DAA all other treatments resulted in turfgrass injury similar to the non-treated. Insect repellants with the same active ingredient percentage resulted in various perennial ryegrass injury and recovery. Although no different in % DEET, Off Active and Off Family resulted in 30% and 0% injury, 21 DAA, respectively. Results also demonstrate that permanent non-target turfgrass injury could occur if Off Active and Repel Max are applied as a human insect repellent. Further greenhouse and field trials are needed to confirm results as well as determine if other non-labeled ingredients influence turfgrass injury.

Always remember to READ THE LABEL for the correct rate, turfgrass tolerance, and specific instructions before application!!!

***Mention of trade names or commercial products in this article is solely for identification purposes and does not imply recommendation or endorsement, nor is criticism implied of similar products not mentioned by Kansas State University.***

Don’t forget to follow me on twitter @KSUTurf.

Also, visit our facebook page www.facebook.com/KSUTurf

Effect of Dormant ‘MidIron’ Bermudagrass Colorant Applications on Clothing Blemishing

Effect of Dormant ‘MidIron’ Bermudagrass Colorant Applications on Clothing Blemishing

(By Jared Hoyle, KSU Turfgrass Research and Extension and Daniele McFadden, KSU Turfgrass Undergraduate Research Assistant)

Summary. Minimal research exists on potential clothing blemishing when athletes contact turfgrass applied with colorants. Field trials were conducted to test the effect of turfgrass colorant applications on clothing blemishing if a athlete is to come in contact with the playing surface. Turfgrass colorants will adhere to turfgrass leaf blades and do not blemish clothing. Although, tested turfgrass pigments did result in significant blemishing of clothing.

Rationale. Bermudagrass (Cynodon dactylon) is a warm-season turfgrass used on athletic fields in the Midwest. Although a desirable turfgrass species for athletic fields it fails to maintain acceptable green color during winter. Turfgrass colorants have been utilized to maintain acceptable green turf color through dormancy periods. Athletes of all ages play on sports fields where colorants have been applied. Extensive research has explored turfgrass colorants on turfgrass quality but minimal research exists on potential clothing blemishing when athletes contact turfgrass applied with colorants.

Objectives. The objective of this research was to determine if turfgrass pigments and paints blemish athletic clothing after the recommended dry time.

Study Description. Field research trials were initiated Feb. 16, 2017 at Rocky Ford Turfgrass Research Center in Manhattan, KS on dormant ‘MidIron’ bermudagrass maintained at 3.8 cm. Treatments were applied to 1.5 by 1.5 m plots arranged in a randomized complete block design with four replications. Treatments consisted of three paints (Wintergreen Plus, Green Lawnger, Endurant Premium), one pigment (Envy) and a non-treated control for comparison. All colorant treatments were applied at 1:6 (v:v) dilution in 1,234 L ha-1 spray volume. After recommended drying time (4 hrs), a white cotton t-shirt was pulled 1.5 m across the plot weighted down with 11.4 kg. Digital image analysis was used to determine percent blemishing of t-shirt area. Data was subjected to ANOVA in SAS and means were separated according to Fisher’s Protected LSD at 0.05 significance level.

Results. Envy (turfgrass pigment) resulted in the highest blemished clothing percentage (60%). All other treatments were no different than the non-treated (Figure 2). Results demonstrate that the tested turfgrass paints safely adhere to the turfgrass canopy and do not blemish athletic clothing.

Figure 1. Dormant colorant field trial plots located at Rocky Ford Turfgrass Research Center in Manhattan, KS.

Always remember to READ THE LABEL for the correct rate, turfgrass tolerance, and specific instructions before application!!!

***Mention of trade names or commercial products in this article is solely for identification purposes and does not imply recommendation or endorsement, nor is criticism implied of similar products not mentioned by Kansas State University.***

Don’t forget to follow me on twitter @KSUTurf.

Also, visit our facebook page www.facebook.com/KSUTurf