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View Full Version : LOOK at the lawn pictures..(summer patch maybe)

ant
08-07-2006, 11:05 PM
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grandview (2006)
08-07-2006, 11:15 PM
The second pix looks like a fairy ring.
The first looks like someone ran a fert or weed control bead along the side walk.
lawnspecialties
08-07-2006, 11:31 PM
My guess is brown patch. Does the grass at the edges have some green with little brown spots? Have you folks been getting a lot of evening rains?
TurfProSTL
08-08-2006, 01:17 AM
That could definitely be Summer Patch or Necrotic Ring Spot. Bluegrass? Sodded lawn?
MStine315
08-08-2006, 05:37 PM
I say either summer patch or necrotic ring spot. Probably NRS. Brown patch would take the whole patch and not leave the center so healthy and there would be a defined "smoke ring" along the very outer edge, at least while it is active. Fairy ring is not as defined and in a complete circle. With last week's heat and heavy rains in Michigan I've seen disease activity I never had the think twice about on a home lawn. The best cure for any of the patch diseases is core aeration the take stress off the root system, back off the N, and possibly an organic fert. program such as Nature Safe.
ant
08-08-2006, 08:59 PM
yes blue grass sod
TurfProSTL
08-08-2006, 10:29 PM
I would aerate the heck out of it early September & overseed with turf type tall fescue.

Until then, keep it well watered. Cut high as you can get away with. I don't think a fungicide will be of much benefit this late in the summer.....
SodKing
08-08-2006, 10:34 PM
It is Rhizoctonia solani. What quickly ID's it is the frog eye pattern of live grass in the middle of a dead ring (pics 1,2,3). for more info click here

http://www.uoguelph.ca/pdc/Factsheets/Diseases/BrownPatch.htm
TheGrassBandit
08-09-2006, 04:25 PM
hmmm.... that is interesting
RigglePLC
08-09-2006, 05:37 PM
My vote is Necrotic ring spot. Particularly a problem in sod--more common if less than 2 years old. The cheaper, older cultivars of Kentucky bluegrass are worse. Patch it with new sod disease free sod.
MStine315
08-09-2006, 06:22 PM
In the case of necrotic ring spot, light daily watering at 12-3 p.m., or in the heaqt of the day, JUST to cool the canopy is also helpful. This isn't your main watering event, simply a syringe cycle, or a couple rotations of each head to take the stress off the root system and canopy.
ant
08-10-2006, 07:15 AM
top left and top right picture( the streek along the sidewalk)?????
but it seems like summer patch on the rest (frog eye)
CHUCK'SLAWN
08-10-2006, 10:19 PM
looks to me like sidewalk was just pressure cleaned with bleach. water it heavy and it will clear up
SodKing
08-10-2006, 11:29 PM
looks to me like sidewalk was just pressure cleaned with bleach. water it heavy and it will clear up


Chuck....you're not serious are you?