It's time to make a decision on Flag leaf fungicide
Scouting wheat fields this week and have noticed varying levels of tan spot, septoria, powdery mildew, leaf and some stripe rust. Research has proven that there is a high probability for a positive return on investment from a flag leaf application in winter wheat. This is especially true when disease is present.
Recent reports from southern and south western Oklahoma have indicated widespread leaf and stripe rust advancing to the north.
By the time you see the orange pustules on plant tissue the plant has already been inoculated, infected and is now reproducing fungal spores. Timing can be challenging due to non-uniformity of fields and the advancement of flag leaf on secondary tillers. Generally, if there is no disease present in the field (lower canopy), waiting for the flag leaf on the secondary tillers to fully unroll would be ideal. However, if disease is present or in close proximity, treatment may be required before those secondary tillers are ready. This is because the primary tillers have the ability to produce the greatest proportion of yield.
Garber Coop has chosen a fungicide program that offers premium protection for an economical price. This fungicide has two modes of action, Azoxystrobin (FRAC 11) and Cyproconazole (Frac 3) to offer excellent preventative residual, fast acting curative properties and a wide spectrum of activity on fungal pathogens. This product at the full rate will retail for less than $8.00 per acre (application extra if custom applied)
If you have additional questions, please feel free to call Kevin @ 580-541-9014