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Old 08-20-2003, 10:38 AM
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MacLawnCo MacLawnCo is offline
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Funus that turns grass leaves rust/orange color??

Ive looked through the books that i have, and i can not figure out what this may be. In approximately 40% of one of my client's lawn, there is a fungus on the blades of the grass. There are approximately a dozen patches of the fungus on each blade. From a distance it looks to be just drough stressed grass, but i noticed the fungus powder on my deck, and it appeared orangish, almost a rust color. What could it be, and how could it be treated (yes, im liscensed )
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Old 08-20-2003, 11:16 AM
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Ric Ric is offline
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Mac

I am warm season turf so I can only guess you have RUST,(Puccinia). Macozeb should help cure the problem. Add LI 700 by Loveland and it will work much better.
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Old 08-20-2003, 11:27 AM
Clay Clay is offline
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Also sounds like RUST to me Mac.... RUST is the biggest culprit here on the moist west coast and is usually taken care of with an extra shot of fertilizer and bag the clippings... It is unsightly but usually doesn't do any harm to the turf... but Red Thread could be next if left untreated... Just juice it up a bit and let it outgrow the rust and all should be fine in a couple of weeks...

Good Luck, Clay
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Old 08-20-2003, 11:57 AM
Rtom45 Rtom45 is offline
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Sounds like rust to me also. In the past, we've had this problem extensively on our recreational fields. Both 4 Flowable Mancozeb and Bayleton are labeled for treatment.
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Old 08-20-2003, 12:34 PM
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MacLawnCo MacLawnCo is offline
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thanks gentlemen
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Old 08-20-2003, 06:36 PM
GroundKprs GroundKprs is offline
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You do seem to have <a href="http://www.agcom.purdue.edu/AgCom/Pubs/BP/BP-110-W.pdf">Leaf Rust</a>

And check this page for most disease reference: http://www.btny.purdue.edu/Pubs/#turf
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Old 08-21-2003, 11:55 AM
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TOTALLAWN OF KY TOTALLAWN OF KY is offline
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it might be red thread is it stringy
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Old 08-21-2003, 12:07 PM
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MacLawnCo MacLawnCo is offline
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definately not red thread.

Thanks Jim for that link.
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Old 08-22-2003, 12:15 AM
GroundKprs GroundKprs is offline
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Hey, Mac, just posted today: http://www.agry.purdue.edu/turf/tips/2003/rust821.htm
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Old 08-22-2003, 12:36 AM
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EJK2352 EJK2352 is offline
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Mac,
It is definitely RUST!!! It's running rampant here in N.E. Ohio. All the rain this summer is bringing out all kinds of disease problems.
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