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| Symptoms: active in
fall, winter, and spring when temperatures are moderate
and moisture abundant. Leaves start yellowing and
roots/stolons darken, and easily pull up. Large irregular
shaped discolored areas. Cultural control: •maintain pH at 5.5-6.0 •Provide medium to high P and K; avoid liming •Improve root zone drainage and core aerate to minimize compaction •Avoid excessive overwatering, but infrequent, thorough irrigation as needed to maintain plant growth and vigor. •Prevent thatch buildup •Maintain adequate, but not high levels of sulfur •Avoid high levels of liquid calcium/lime/gypsum that will raise pH above 6.0 or create Micro-layers near the crown region |
Fungicides: fenarimol (Rubigan) propiconazole (Banner) pyraclostrobin (Insignia) |
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