Pine wilt in western Kansas

In the past few weeks pine wilt has been confirmed in several counties in western Kansas. These sites are farther west than the “established” zone of pine wilt activity. Pine wilt has been in the eastern half of Kansas for decades, and now the “front line” communities include Beloit, Hays, Great Bend, Pratt, and Medicine . . . → Read More: Pine wilt in western Kansas

Conifer Trial at JC Pair Center

What is K-State Doing About Conifers?

Jason Griffin, Director, John C. Pair Horticultural Center

Kansas State University

…Use your imagination. We hear it all! However, for this purpose let’s say, ‘What is K-State doing about conifers?’ Pine wilt disease continues to wreak havoc on our pine trees. As . . . → Read More: Conifer Trial at JC Pair Center

Trinity/Triton/Turkey

Hello,

I hope you all had a lovely holiday with your families and/or friends.

Trinity and Triton are two of the newer DMI products in turf. Frank did a nice job summarizing these materials recently and you can check it out here:

http://turfdiseases.blogspot.com/2010/06/get-yer-t-ts-out-and-use-them-for.html

Since I don’t think I could put the “review” any better than . . . → Read More: Trinity/Triton/Turkey

Granular vs sprayable

This posting is related to a national turf blog where we’ve been reviewing fungicides all week–see http://turfdiseases.blogspot.com/

I have a few comments related to Lane’s posting about granular formulations. I have a few observations for formulations of azoxystrobin.

In 2008 I ran two trials for brown patch in tall fescue (lawn-height). In one trial, the . . . → Read More: Granular vs sprayable

Fungicide summary-part of national turf blog reviews

This is related to a national turf blog where we are spending this week and next reviewing products. See http://turfdiseases.blogspot.com/

Book 7, part I … are you kids as excited as I am?

Maybe some of you went to the midnight showing last night?

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RESERVE

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Last week I . . . → Read More: Fungicide summary-part of national turf blog reviews

Summer trial info

Hi,

I thought I’d share some results from one of our summer trials in creeping bentgrass. The study was conducted in a stand of A4 on a sand-based green. There were four “program” treatments that rotated through different products. Those details can be viewed at a higher zoom by clicking on the boxes below, and . . . → Read More: Summer trial info

The ultimate root rot experience

I received some basil plants last week. I know, basil is not turf or ornamental, but the process I’m going to describe is relevant to other kinds of plants. Click the images for a closer look.

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The top parts of the plants looked fine, nice and green:

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But, if you look close, . . . → Read More: The ultimate root rot experience

Sampling for KSU

Here’s an example, let’s suppose you have dollar spot on 3 putting greens, #4, #6 and #11

(The same principles apply for large patch in a fairway or tee, or dollar spot in fairways)

Take 3-4 sample plugs from each green. The ones from green #4 can all go together into a ziplock, labeled “#4″, . . . → Read More: Sampling for KSU

Wind damage, cool weather, turf diseases, weeds

Strong storms caused some major tree damage last week. As I’ve mentioned before, it’s important to properly prune trees after storm damage to help minimize opportunities for decay.

Cooler weather!

A few days after the storm it was remarkably cool. After visiting my field plots on Tuesday morning, I needed some HOT tea instead . . . → Read More: Wind damage, cool weather, turf diseases, weeds

More USGA info on summer 2010

The following link has some comments and tips from USGA agronomists:

http://www.usga.org/news/2010/August/Heat-Straining-Golf-Courses/

Here’s an excerpt:

“No two golf courses are alike, having different grasses, soils, course features and golfer expectations,” said Stanley Zontek, director of the Mid-Atlantic Region for the USGA Green Section. “It is important that golf course superintendents use defensive golf . . . → Read More: More USGA info on summer 2010

Bacterial wilt–healthy skepticism

Those of you managing putting greens may have been hearing news, rumors, debates, etc, about bacterial wilt. In the national turf pathology blog that I participate in there’s been a lot of discussion lately. Rather than re-invent the wheel, I’ll just direct you to some of the postings there. In particular you might find it . . . → Read More: Bacterial wilt–healthy skepticism

Lose a Battle to Win the War: An Article by USGA Agronomist

My friends up at the iaTurf blog, recently posted a great article by Ty McClellan, USGA Green Section Record Mid-Continent Region Agronomist. It is an excellent article and it easily applies to the summer we have been experiencing here in the Midwest.

Check it out…and feel free to post any comments here or there. Lose . . . → Read More: Lose a Battle to Win the War: An Article by USGA Agronomist

Rain Rain. Why is my Grass Dying?

Too Much Rain. How Long Can it Survive?

Visit with anybody in the Green Industry here in the Midwest and the discussion is surely to turn to the weather… specifically the amount of rain we have had this spring/summer. The Johnson County Executive Airport has received 25.5″ of rainfall since the 1st of Jan, . . . → Read More: Rain Rain. Why is my Grass Dying?

dollar spot in zoysia, brown patch in greens, PGR effects of DMI’s

The fairway-height zoysia was looking “speckled” this morning.

Closer examination shows dollar spot lesions:

Brown patch:

Growth Regulating effects:

The outlined plot is being treated every 14 days with a product that contains the DMI fungicide propiconazole. DMI products can have growth regulating effects.

Dr. Lane Tredway described DMI effects here:

. . . → Read More: dollar spot in zoysia, brown patch in greens, PGR effects of DMI’s