are the spots round? Give them a good soaking & wait to see if small, black,
shiny beetles come out of the lawn. If they do you have a choice of
squashing them or using chemicals for lawn beetles.

"woodsie" wrote in message
...
have two spots in seperate lawns where the grass has turned a bright
yellow colour. it stays this way for a few weeks, then die's off to the
usual brown colour.

anyone know what causes it?