Now that we know when to target a specific disease, how do we know which product to use ? The UC Davis IPM has a great chart for this. The Almond Fungicide Efficacy Chart lists multiple products and the FRAC group associated with that fungicide. What is a FRAC group ? FRAC stands for “Fungicide Resistance Action Committee” and it is a set of numbers and letters to distiguish fungicides based on their mode of action. In order to prevent resistance to these fungicides, growers need to rotate FRAC groups to prevent developing resistant disease. That means if a grower’s first bloom spray contains a FRAC Group 3 fungicide, the second bloom spray application should not. The second should contain a different mode of action like a FRAC Group 7/11. By rotating FRAC groups it keeps tools in your toolbox and growers have enough tools removed by outside forces they do not need to remove their own. Before making any decisions on what fungicide you should use as a grower, you should probably know what you are
NUT HARVESTING EQUIPMENT
2850 SWEEPER
5510 CONDITIONER
7510 HARVESTER
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