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weis1
07-08-2009, 11:56 AM
spots on lawn have dead grass that recently showed up. most of the dead blades have split ends and have a redish color. the lawn is fert and irrigated regularly. any advice as to what this is and how to treat it? thanks in advance

DA Quality Lawn & YS
07-08-2009, 12:50 PM
Red thread has been a popular subject on here lately, seems to be a lot of it going around. I will defer to others for treatment suggestions.

RigglePLC
07-08-2009, 09:29 PM
More fertilizer will help. Do not water at night. Red thread often disappears when weather is hotter and dryer. Fungicides of the strobin group are best: Heritage, Compass, Signature.

If all else fails switch to Kentucky bluegrass. Older types of ryegrass and fine fescue are mostly susceptible. New better rye types like Silverdollar, Derby Xtreme, Manhattan V and Palmer V, are better. Don't plant any ryegrass unless it claims to be resistant to red thread--even then--don't believe it.

mngrassguy
07-09-2009, 01:49 AM
I've never, in 20+ years, seen red thread in a KB lawn around here. What city are you seeing this?