Spring Dead Spot
9/8/2014 - By Jim Wilson
Prepare Now. Research Shows Fall Control is Most Effective.
Preventative spray treatments with a sound agronomic program allow Turf Managers to rest a little easier during spring green up. Any of the programs listed below can minimize turf injury caused by this pathogen. Research has demonstrated that fall applications, when soil temperatures are between 60°F and 80°F are most effective. The growth of bermudagrass roots is severely diminished when soil temperatures are below 60°F. The ability for roots to absorb systemic fungicides may also be reduced. Applications in higher volumes of water (>5.0 gal/1000 ft2) or applications in 2.5 gal/1000 ft2 that are immediately watered in with 0.25” irrigation, tend to be more effective than applications made in traditional carrier volumes of 2 gal/1000 ft2 or less.
| Ounces per 1000 ft2 |
Number of Applications | |
| Rubigan AS | 6.0 oz. or | 1 |
| 4.0 oz. or | 2 | |
| 6.0 oz. | 2 | |
| (Includes a 5 oz. application of T-Methyl 28 days after Rubigan is applied) |
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| Eagle 20EW | 2.4 oz. | 2 |
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| Torque 3.6F | 0.6 oz. | 2 |
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| Headway | 3.0 oz | 2 |
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Most applications require last application made 28 to 30 days before Bermudagrass Dormancy.
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