Get your mix right

 

Fungicide Resistance Action Committee (FRAC) codes

These numbers and letters are used to classify each fungicide according to their cross-resistance behavior. Single-site fungicides only act against one point in the pathogens metabolic pathway or targets a critical protein needed for the fungi to fully develop. As a result of this specific activity, fungi are more likely to become resistant to the fungicide. For example, group 3 or Demethylation Inhibitors (DMIs) are known to have some resistance with certain diseases like S. homoeocarpa (dollar spot). Multi-site fungicides act against multiple points in preventing fungi and risk of resistance is low. These fungicides are generally represented by having an “M” attached to a number in their group. An example is Manzate® Max T&O (M3) and Pegasus® (M5) which provides multi-site control with no known resistance. 

 

UPL’s fungicide portfolio provides multiple options when it comes to disease prevention. Tank mixing different single-site fungicides in different FRAC groups often helps to delay resistance. Tank mixing products such as T-Bird® 4.5L + Raven® will provide excellent control while reducing resistance risk. UPL also provides premixes such as Goliath™XP which provides disease control to more than 20 different diseases. Also, available is new 3-way Dexter™ XCEL, which is a unique combination featuring different single-site and multi-site fungicides that provides superior control with no resistance issues.