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AMISTAR WG Fungicide is a member of the Strobilurin and related products group of fungicides. For fungicide resistance management the product is a Group K fungicide. Some naturally occurring individual fungi resistant to the product and other Group K fungicides may exist through normal genetic variability in any fungal population. The resistant individuals can eventually dominate the fungal population if these fungicides are used repeatedly. These resistant fungi will not be controlled by this product or other Group K fungicides, thus resulting in a reduction in efficacy and possible yield loss.

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