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Category: Insects

The 2017 Turfgrass Research Reports Now Online!

(By Jared Hoyle, KSU Turfgrass Research and Extension)

The 2017 Turfgrass Research Reports are now available!!!! See what research projects the KSU Turfgrass Team have been up to.

Click the link below to take you to the Kansas Agriculture Experiment Station Research Report Page.

http://newprairiepress.org/kaesrr/vol3/iss4/

Volume 3, Issue 4 (2017) Turfgrass Research

Research Reports

PDF

Measurement of Evapotranspiration in Turfgrass: Recommended Techniques and Adjustment Coefficients
Kenton W. Peterson, D. Bremer, Kira B. Shonkwiler, and J. M. Ham

PDF

Evaluating Zoysiagrass-Tall Fescue Mixtures in Kansas
Mingying Xiang, J. Fry, and M. Kennelly

PDF

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2016 Data
L. Parsons, Michael J. Shelton, M. Kennelly, J. Griffin, and J. Hoyle

PDF

2013 National Turfgrass Evaluation Program Bermudagrass Test: 2016 Data
L. Parsons, Michael J. Shelton, J. Griffin, and J. Hoyle

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

Monthly calendar for cool-season lawns for the rest of 2017.

(By Jared Hoyle, KSU Turfgrass Research and Extension)

I can’t believe it… Where has the summer gone?  I blinked and students are running around campus and just last night it was cool enough to cut the A/C off and open the windows.  Not to mention just in a couple weeks we will be watching college football.

When all of this happens I know I need to be getting out and working on my cool-season lawn.  Time for fertilizer, overseeding existing lawns and establishing new lawns.  So first I want to go back and look at the lawn calendar for cool-season lawns.  Here are some recommendations.

Late-July through August
If you see grub damage, apply a grub killer that contains Dylox. Imidacloprid is effective against young grubs and may not be effective on late instar grubs. The grub killer containing Dylox must be watered in within 24 hours or effectiveness drops.

September
Fertilize around Labor Day. This is the most important fertilization of the year. Water in the fertilizer.

November
Fertilize. This fertilizer is taken up by the roots but is not used until the following spring. Water in fertilizer. Spray for broadleaf weeds even if they are small. Broadleaf weeds are much easier to control in the fall than in the spring. Spray on a day that is at least 50 degrees. Rain or irrigate within 24 hours reduces effectiveness. Use label rates for all products!

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

New Turfgrass Publications

(By Jared Hoyle, KSU Turfgrass Research and Extension)

The KSU Turfgrass Team has been busy updating turfgrass extension publications.  Some of the most recent publications include benefits of a healthy turf, lawn fertilization guide and turfgrass mowing.

Enjoy the updated publications!

Benefits of Heathy Turfgrass

Environmental, economic, health, and safety benefits of turfgrass found in lawns, athletic fields, parks, and roadsides.

https://www.bookstore.ksre.ksu.edu/Item.aspx?catId=545&pubId=12800

Lawn Fertilizing Guide

This guide helps homeowners determine how much fertilizer to apply to keep lawn vigorous and healthy.

https://www.bookstore.ksre.ksu.edu/Item.aspx?catId=545&pubId=10639

Turfgrass Mowing: Professional Series

Mowing basics for professional turfgrass managers. Information on mowing height and frequency, clippings, mowing pattern, mower operation, blade sharpening, mower selection, maintenance, and safety

https://www.bookstore.ksre.ksu.edu/Item.aspx?catId=545&pubId=712

Mowing Your Lawn

Mowing basics for homeowners. Includes information on mowing height and frequency, pattern, mower operation, maintenance, and safety.

https://www.bookstore.ksre.ksu.edu/Item.aspx?catId=545&pubId=615

Recycling Grass Clippings

Information for homeowners on why and how to recycle grass clippings.

https://www.bookstore.ksre.ksu.edu/Item.aspx?catId=545&pubId=701

 

For more turfgrass publications visit the KSRE Bookstore.

https://www.bookstore.ksre.ksu.edu/Category.aspx?id=528&catId=545&Page=1

Landscape and Garden Bugs

(Posted by Jared Hoyle, KSU Turfgrass Research and Extension)

K-State Horticultural Entomologist Raymond Cloyd covers a variety of insects now at work in home lawns, landscapes in gardens, including bagworms infesting evergreens, emerald ash borers attacking ash trees, and squash bugs feeding on garden cucurbit crops.

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

 

Emerald ash borer confirmed in Shawnee County (Topeka)

The Kansas Department of Agriculture, along with the U.S. Department of Agriculture, has confirmed the presence of emerald ash borer (EAB) in Shawnee County, Kansas.

Read on for more details:

http://agriculture.ks.gov/AllNewsItems/2017/06/09/emerald-ash-borer-confirmed-in-shawnee-county

 

(Photo credit:

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Homeowner Do-It-Yourself Lawn Calendar Reminders!

(By Jared Hoyle, KSU Turfgrass Research and Extension)

Earlier this year I wrote two blog posts that listed out both a cool- and warm-season lawn calendar for homeowners.  If you are anything like me then I have already forgot what I was suppose to do so sometimes it is good to have a reminder.

Cool-season Lawn Calendar Reminder 

June through Mid-July
Apply second round of crabgrass preventer by June 15 – unless you have used Dimension (dithiopyr) or Barricade (prodiamine) for the April application. These two products normally provide season-long control with a single application. Remember to water it in. If grubs have been a problem in the past, apply a product containing imidacloprid during the first half of July. This works to prevent grub damage. It must be watered in before it becomes active.

Warm-season Lawn Calendar Reminder

May – August 15
Fertilize with 1 lb. of nitrogen per 1,000 square feet per application. Follow the recommendations on the bag. More applications will give a deeper green color, but will increase mowing and may lead to thatch buildup with zoysiagrass. Bermudagrass can also have problems with thatch buildup but thatch is less likely with Bermuda than zoysia. Bermudagrass – Use two to four applications. Zoysiagrass – Use one to two applications. Too much nitrogen leads to thatch buildup.

One Application: Apply in June.
Two Applications: Apply May and July.
Three Applications: Apply May, June, and early August.
Four Applications: Apply May, June, July, and early August.

Remember to look and see if you are using a quick release nitrogen source or a slow release nitrogen source.  If you use a quick release source then it is immediately available but only lasts a couple weeks.  Thats why you would have to make a couple of applications like it is listed above.  If you are going to use a slow release source it will tell you on the bag how long the product will last.  Therefore, you might not have to make as many applications.

So generally you want to use a total of 2 to 4lb. of nitrogen per 1,000 square feet per year for bermudagrass and 1 to 2 lb. of nitrogen per 1,000 square feet per year for zoysiagrass.

Buffalograss – Fertilize with 1 lb. of nitrogen per 1,000 square feet during June. More applications will give a deeper green color. If it is felt that a second application is needed, apply in July. Do not exceed more than 2 lbs of nitrogen per 1,000 square feet per YEAR for a home lawn.

June
If grubs have been a problem in the past, apply a product containing imidacloprid by mid July. Imidacloprid can be applied as early as mid May if there are problems with billbugs or May beetle grubs. These products kill the grubs before they cause damage. They are effective and safe but must be watered in before they become active.

June is also a good time to core aerate a warm-season lawn. Core aeration will help alleviate compaction, increase the rate of water infiltration, improve soil air exchange and help control thatch.

For the full Do-It-yourself Lawn Calendars click the links below

Warm-Season – http://blogs.k-state.edu/turf/homeowner-do-it-yourself-lawn-calendar-for-warm-season-grass/ 

Cool-Season – http://blogs.k-state.edu/turf/homeowner-do-it-yourself-lawn-calendar-for-cool-season-grasses/

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

Attack of the 1 inch C-shaped Grub

(By Jared Hoyle, KSU Turfgrass Research and Extension)

In the summer time we typically see dead spots in turf due to many factors but one of those could be annual white grubs.  The annual white grub is one of the most common grub pests in Kansas.  Masked chafers emerge from the soil around mid June in Kansas then after mating they deposit eggs back into the soil.  They then grow and develop in the soil and mature around September.  This is when we typically see damage in turf, once the grubs are large.  But if we can get them before they get big the easier it is to control.

For control measures, you can apply it preventatively or as a rescue treatment (after you have already seen damage.

Preventative controls should be applied during that time when the grubs are mating and laying eggs.  This is typically in June/July time frame. Using a preventative insecticide gives you greater flexibility.  Products for preventative applications contain the systemic active ingredients; imidacloprid, chlorantraniliprole, clothianidin, thiamethoxam and halofenozide.  For a complete list of chemicals go here;

https://www.bookstore.ksre.ksu.edu/pubs/mf2635.pdf

Rescue treatments are “wait-and-see” if you have grubs type of application. If you have grubs you can easily pull up the turf like carpet because all the roots are gone and you also might see skunk, raccoon and bird damage where they have tried to eat the grubs.  Rescue treatments consist of carbaryl and trichlorfon.

For more information check out the link above!

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

Don’t miss the 2017 KSU Turfgrass Field Day – August 3rd

The next Turfgrass Field Day will be held on Thursday, August 3, 2017 at the John C. Pair Horticultural Research Center, Wichita.
The KTF Turf Field Days are a great way to see and learn about the turfgrass research at K-State first hand. The events are held annually in the summer at the turfgrass research locations of Kansas State University.

The Field Day qualifies for recertification credit hr for commercial pesticide applicators.

You can now Register and Pay Online at  https://2017turffieldday.eventbrite.com
or you can register by downloading, printing, and mailing go to the 2017 Field Day brochure.

Exhibitors can get more information from the Exhibitor Registration Form.

Schedule of the 2017 Field Day 
8:00 a.m. Registration (coffee, tea, donuts)
Visit Exhibitors
8:45         Welcome
9:00        Tour Highlights:

*Turfgrass Weed Control Update
*Turf & Ornamental Diseases
*Bermudagrass & Zoysiagrass Cultivar Selection
*Using Kansas Mesonet to Imrpove Accuracy in Landscape Irrigation
*Right Plant, FROM the Right Place
* Prairie Star Flowers
*Tall Fescue NTEP
*Turf & Ornamental Insect Control
11:30       Lunch

After Lunch

  • Equipment Demonstrations

If you have any questions, please contact,
    Christy Dipman 
    1712 Claflin, 2021 Throckmorton Hall
Manhattan, Kansas 66506
Phone: (785) 532-6173
Fax: (785) 532-6949
Email: 
Christy