With rebate deadlines approaching for different fungicides, many people want to see some data. I’ll put some up today and I should have some more slides coming shortly that I can get posted. Stratego YLD is a new formulation of Stratego. Stratego YLD contains Trifloxystrobin (GEM) and Prothioconazole (Proline), whereas the old formulation contained Propiconazole (Tilt) instead of Proline. The rates are also different. Four ounces of Stratego YLD contains 20% more GEM than 10 oz of the old Stratego. Formulation is more concentrated than the old Stratego, so 4-5 oz of Stratego YLD would be similar to 10-12 oz of Stratego.
Prosaro on wheat and barley:
2007-2010 “Side by Side” wheat demos. ND and MN data, grower applied, 17 different varieties, non-replicated. 6.5 oz of Prosaro applied at flowering in 55 locations had a 7.3 bushel per acre increase over the untreated check.
In the same data, in 2010 alone, Prosaro had a 12.2 bushel per acre increase and had a 3.5 bushel per acre increase over Folicur.
2004-2009 Replicated Barley Trials from U of M and NDSU, 6.5 oz of Prosaro applied at early heading showed a 6.2 bushel per acre increase and a 1.83 ppm reduction in DON levels.
Stratego YLD on Corn:
2010 On Farm Corn Trials – V5 Timing (Early Season) 69 locations, Stratego YLD 2.5 oz/per acre performed an average of 9.1 bushels over the untreated check, local data showed a 6 bushel per acre increase over the untreated check.
2010 On Farm Corn Trials – R1 Timing (Tasseling) 90 locations, Stratego YLD 4-5 oz/ per acre performed an average of 15.4 bushels over the untreated check, local data showed a 9 bushel per acre increase over the untreated check.
Stratego YLD on Soybeans:
2010 On Farm Soybean Trials - R2/R3 Timing (Full Flower) 98 locations, Stratego YLD 4 oz/per acre performed an average of 3.6 bushels over the untreated check.
*If conditions for White Mold exist, I recommend a preventative approach. Proline at 4.3 oz/acre at R1 followed by Stratego YLD 10-14 days later at 3.5 oz/acre. That should put the Stratego YLD application at the beginning of R3. This system will provide protection from white mold through the most susceptible timeframe.
