Applications of Mixtures of Copper Fungicides and Chlorothalonil for Management of Peanut Leaf Spot Diseases

Figs. 3D, E, and F. Effect of rate of a pre-mix formulation of 24% chlorothalonil and 24% copper oxychloride (3Cu(OH)2•CuCl2) fungicide on pod yield (D to F) in 1997 and 1998. Rates on the X-axis are those of the individual components (e.g., 0.42 = chlorothalonil (Chl) at 0.42 kg ai/ha and copper oxychloride at 0.42 kg ai/ha). In 1997, the data from Plains and Tifton were pooled (graphs A and D). In 1998, there was a significant location x treatment interaction, so data from the two locations were analyzed independently. In all tests, standard fungicide regimes included for comparison are represented by colored horizontal lines as follows: Green line, Chl (1.26 kg/ha) sprays 1 to 7; Blue line, Chl (0.84 kg/ha) plus propiconazole (Prop) (0.063 kg/ha) sprays 1 to 7; Red line, Chl (1.26 kg/ha), sprays 1, 2, and 7, and tebuconazole (Teb) (0.13 kg/ha) sprays 3 to 6.



Image from Plant Health Progress article:
Applications of Mixtures of Copper Fungicides and Chlorothalonil for Management of Peanut Leaf Spot Diseases