Yellow patches on lawn

Hello, My entire lawn has small 2" circles of yellow patches. This is very visible in that last 2 days as its raining here in Northeast, zone 5 and the surrounding grasses are becoming more greener.
My first doubt was my neighbours dog urinating there, but it not in one particular place or area, its all over the lawn about 1/4th of an acre. Now the patches appear to be 2" inches in size. But again I doubt its dog urnie, unless the dog could urinate that evenly like a sprinkler. My local garden center sales women said not to do anything just wait and see and if its dogs urine, the raining will help and washes it away.
My second doubt is that in the spring begining I had treated the lawn with pellatized lime with scott rotospreader. I had applied only 240lbs (6x40lbs bags) of lime for the 1/4th acre. Could it be the lime cooking? as suggested by her (the local lawn & garden center person). But again nowhere I read in the Internet/Newgroup suggest a lime could damage the lawn.Could it be the combination of the lime and the unusual extreme heat (85degree before it start raining for a week) we had befor it start to rain? Iam hoping that its not a permanent damage to the lawn.
And so far I have not applied any fertilizer and I have 2 bags of Milorganite standing by to be applied by the rotospreader, as soon as the rain stops. But after seeing the lawn condition Iam hesitant to do anything. Can someone suggest me what action to take? Should I start appling the Milorganite, or should I apply more lime?
Sorry for the long post.
TIA. Sam
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Start by a google search for "dollar spot" if the description does not match look for things it is commonly mistaken for. sand and sun wrote:

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Thank you for the information. The symptom is very similar to dollar spot. Is there any way to confirm it by a test ? Iam going to call the county extension today to find out about turf/soil testing. Also I like to find some organic way of treatment. One good sign is I saw new grass emerging at one larger about 6" dia. dead spot. TIA Sam.
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You might research lawn moths. I had a similar problem a couple of years ago, and that's what it turned out to be.
Myrl Jeffcoat http://www.myrljeffcoat.com
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