Fungicide Products Registered  

A Fungicide spray program may reduce FHB damage. Under optimal application conditions, reductions in FHB severity of 50 to 60 percent and reduction in DON levels of 30-50 percent can be achieved when fungicides are applied at early flowering for wheat and durum, and at early heading in barley. A class of fungicides, called triazoles, are recommended for FHB suppression, as they are locally systemic and have been shown to reduce both FHB and DON.  

The following table lists products available as of 2008 for FHB suppression (data derived from the North Central Regional Committee (NCERA-184) of Small Grain Pathologists). 

Fungicide1	Product names	Rate/A fl oz/A	Head Scab efficacy	Preharvest interval
Metconazole	Caramba	10.0 – 17.0	G2 (VG)2,3	30 days
Propiconazole	Tilt, PropiMax, others	4.0	P2	40 days
Prothioconazole	Proline	5.0 – 5.7	G2 (VG)2,3	30 days (32 for barley)
Prothioconazole + Tebuconazole	Prosaro	6.5	VG2	30 days
Tebuconazole	Folicur, Embrace, Onset, Orius, Monsoon,  TebuStar, Tergol, Toledo, others	4.0	F2	30 days

¹All listed fungicides have federal registration for FHB suppression.  However, individual state registrations may vary and state registrations and rules must be followed in state where product is applied. ² Rating Scale: VG=very good, G = Good, F= Fair, P= Poor. ³VG rating when higher rate is used. 

Further information: http://www.scabusa.org/pdfs/News-Fungicides_08-3.pdf