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  #11  
Old 04-03-2009, 06:44 PM
NattyLawn NattyLawn is offline
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Location: Lancaster, PA
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Quote:
Originally Posted by dishboy View Post
Red thread over winters and likes cool moist conditions particularly slow growing turf. With soil temps still in the forties so Not much N available I have seen red thread on a couple of lawns in fine fescue.
I'm sure red thread overwinters, but are cultural conditions right for the disease to thrive? We don't have the temps here for the disease to thrive, and I'm pretty sure CT doesn't yet either...

I think this is from aggieturf.org

Shoot attacking fungus; most severe during periods of slow shoot growth; typically occurs in spring and fall; Pathogen overwinters as mycelial fragments on living and dead plants; disease is spread by mycelia from infection centers during moist cool weather (60 to 75 degrees); confined to leaves and leaf sheaths; spread by water or machinery moving over infected turf; red threads are easily broken off the leaf and carried by the wind to spread the disease-next year it will likely be in another location

FACTORS THAT MAY PROMOTE DISEASE DEVELOPMENT:

Spring and fall disease; temperatures 60 to 75 degrees; high humidity; low nitrogen levels; heavy dews
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  #12  
Old 04-05-2009, 08:07 PM
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Keegan Keegan is offline
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Here are some pics I finally got uploaded. 75% of the lawn looks like this. Not every single blade is infected.

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  #13  
Old 04-06-2009, 08:24 AM
Smallaxe Smallaxe is offline
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Here, There are entire sections of lawns that look that way right now. I do cleanup with a blower instead of a rake and one advantage is to get air through the crown of the grass plant.
Good air circulation when the grass starts growing is beneficial to healthy growth and not to disease organisms.
How can you tell the difference between fungal infection and winterkill?
__________________
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Now that I know that clay's texture(platelets) has nothing to do with water infiltration, percolation, or drainage
,,, I wonder what does...
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  #14  
Old 04-06-2009, 09:31 AM
Kiril Kiril is offline
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Quote:
Originally Posted by Smallaxe View Post
How can you tell the difference between fungal infection and winterkill?
I agree. Not seeing anything there that indicates fungus .... salt burn & freeze damage are possibilities.
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  #15  
Old 04-06-2009, 10:26 AM
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Keegan Keegan is offline
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THe reason I thought it might be a fungus were the reddish brown marks which are hard to see.
It makes sense about it being winter kill. We had a tough winter here.
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