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Old 06-10-2003, 09:37 AM
Russ Russ is offline
LawnSite Senior Member
Join Date: Jan 2001
Location: Indianapolis Indiana
Posts: 539
Ohio State says


A. PALE GREEN TURF. Joe Rimelspach noted that mysterious chlorotic patches
of turfgrass have once again returned to lawns and fields in rain-soaked
Ohio. Certain cultivars of Kentucky bluegrass develop yellowish, irregular
patches and streaks during periods of continual rainfall, cloud cover, and
warm temperatures. The cause is still unknown, however turfgrass scientists
speculate that it is a physiological response to slow growth, high moisture,
and temperatures unfavorable for turfgrass growth. Fertilizing or adding
iron only exaggerates the condition as the healthy turf turns greener, in
stark contrast to the sickly colored turf that is not growing. Fortunately,
with proper mowing and maintenance, the turfgrass should eventually recover.
A close examination of the yellowing turfgrass should quickly distinguish
this condition from pale-looking weedy grass species.
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