April 29, 2014

Brown Ring Patch Spotted in New Jersey

Brown Ring Patch (aka Waitea patch) is starting to show up on golf course putting greens at this time.

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Brown Ring Patch on a Golf Green
Photo: S.McDonald

This disease is caused by the fungus Rhizoctonia circinata var circinata and typically develops during warm weather from April through June. Symptoms start as small yellow rings (0.25-2 inches wide) with green grass in the center and can ultimately reach a foot or more in diameter. The yellow rings can turn an orange or brown color as the disease progresses. [Read more…]

Filed Under: Turf
April 25, 2014

Leaf Spot and Melting-Out is Active

The leaf spot phase of this disease, caused by the fungus Drechslera poae, is apparent on susceptible Kentucky bluegrass turf at this time.

Leaf Spot of Kentucky Bluegrass

Leaf Spot
of Kentucky Bluegrass

Melting Out

Melting-Out of Kentucky bluegrass. A resistant cultivar (left) compared to a susceptible cultivar (right).

[Read more…]

Filed Under: Turf