Golf Course Management

FEB 2019

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

Issue link: http://gcmdigital.gcsaa.org/i/1073136

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02.19 GOLF COURSE MANAGEMENT 67 Propiconazole concentrations in creeping bentgrass leaf blades Hours after app Temperature (F) Leaf blade portion (inches/centimeters) Mean propiconazole concentration (micrograms/gram leaf weight) Run 1 Run 2 24 72 0-0.44/0-1 136.43 54.92 0.44-0.78/1-2 14.30 1.03 0.78-1.18/2-3 17.41 0.03 57 0-0.44 341.94 113.27 0.44-0.78 6.53 16.82 0.78-1.18 1.52 0.19 50 0-0.44 159.91 72.67 0.44-0.78 4.45 0.64 0.78-1.18 2.45 2.73 34 0-0.44 183.09 71.00 0.44-0.78 0.0 0.06 0.78-1.18 0.0 0.83 48 72 0-0.44 31.18 71.29 0.44-0.78 8.67 0.78 0.78-1.18 5.39 0.84 57 0-0.44 47.20 148.20 0.44-0.78 6.47 1.91 0.78-1.18 2.79 16.87 50 0-0.44 109.36 49.91 0.44-0.78 22.06 3.92 0.78-1.18 7.04 0.80 34 0-0.44 524.05 134.25 0.44-0.78 7.43 0.71 0.78-1.18 1.66 0.166 96 72 0-0.44 215.52 69.07 0.44-0.78 6.19 0.0 0.78-1.18 4.20 0.0 57 0-0.44 183.02 8.27 0.44-0.78 3.02 0.0 0.78-1.18 3.88 0.0 50 0-0.44 382.70 4.32 0.44-0.78 30.34 0.53 0.78-1.18 2.80 0.41 34 0-0.44 308.81 20.10 0.44-0.78 0.38 0.0 0.78-1.18 0.0 0.20 Table 1. Propiconazole concentrations detected in creeping bentgrass leaf blades grown at four different temperatures (72 F, 57 F, 50 F and 34 F). For each temperature, propiconazole concentrations were measured at 24, 48 and 96 hours following propiconazole application.

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