In some areas of our lawn blades of grass are turning white at the tips.
What could be going wrong?
Answer
The strange white tipped grass will have a powdery coating if the problem is powdery mildew. If that is not present, the most likely way that grass becomes white tipped like this is application of a pre-emergent weed killer. There are a number of those that will cause some weeds and some grasses to lose chlorophyll and turn white in this way. It may have been applied as a mixture in some grass seed that was being used to patch areas.
Courtesy of NYBG Plant Information Service
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