WATERMELON 2008 STILLWATER

Effects of fungicide programs on control of powdery mildew on watermelon (cv. Royal Sweet),

Stillwater, OK – Fall, 2008

 

Treatment and rate/A (application) Z Yield (cwt/A)Y
Check 14.7
Bravo 6F 2 pt (1-7) 18.3

Bravo 6F 2 pt (1,3,5,7)
Ranman 3.3F 2.75 fI oz +
Silwet L-77 2 fI oz (2,4,6)

 20.5

Bravo 6F 2 pt (1,3,5,7)
Presidio 4F 3 fI oz (2,4,6)

 20.9

Bravo 6F 2 pt (1,3,5,7)
Revus 2.08F 8 fI oz (2,4,6)

19.2

Bravo 6F 2 pt (1,3,5,7)
Previcur Flex 6L 1.2 pt (2,4,6)

 19.0
LBG-31FCL 4 pt (1-7) 23.3

Bravo 6F 2 pt (1,3,5,7)
Tanos 50DF 8 fI oz (2,4,6)

 23.7
LSD (P=0.05)5 NS

 

Z  Application timing numbers 1 to 7 correspond to the spray dates of 1 = 26 Aug., 2 = 1 Sep., 3 = 9 Sep., 4 = 16 Sep., 5 = 23 Sep., 6 = 30 Sep.,and 7 = 8 Oct. 

Y Marketable melons weighing 14 lb or more on 17 Oct.