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Brownpatch

Brownpatch. Brownpatch in bermudagrass lawn. Brownpatch in zoysiagrass lawn. Brownpatch in St. Augustinegrass. Brownpatch symptoms distinct boundary between healthy and diseased grass. Brownpatch symptoms showing rotted tissue where shoot attaches to stem.

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Brownpatch

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  1. Brownpatch Brownpatch in bermudagrass lawn

  2. Brownpatch in zoysiagrass lawn

  3. Brownpatch in St. Augustinegrass

  4. Brownpatch symptoms distinct boundary between healthy and diseased grass

  5. Brownpatch symptoms showing rotted tissue where shoot attaches to stem

  6. Closeup showing rotted shoot tissue

  7. Rhizoctonia mycelium Causal organism for brownpatch

  8. Brownpatch in St. Augustinegrass Rate of A.I./ *Ratings for Brownpatch Activity Fungicide1,000 sq. ft.11/25/85 11/11/86 11/6/97 11/30/88 3/9/89 PCNB 12 oz. 1.0 1.0 1.3 1.0 1.3 Benomyl 2 oz. 7.3 6.7 Chipco 26019 2 oz. 4.0 5.2 5.3 2.0 4.2 Daconil 4 oz. 8.0 5.2 4.0 Prostar 2 oz. 1.0 1.7 1.5 3.5 Banner 2 oz. 2.0 3.5 Check 9.0 8.0 8.3 4.0 8.0

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