Home Crop Monitoring T3 wheat fungicide — to spray or not to spray?

T3 wheat fungicide — to spray or not to spray?


With T3 fungicide software timing approaching to management fusarium in Ontario’s wheat crop, many growers are questioning whether or not to spray or not to spray.

With the recent, dry Ontario climate pushing into late Might, there’s little or no illness within the crop and illness ranges may decline additional if moisture continues to be scarce. For RealAgriculture agronomist Peter Johnson, the choice to spray a fungicide in wheat comes down to two key elements: “how dry is it going to stay and how hot is it going to get?”

If the climate turns into extra average, illness ranges may enhance and wheat vegetation may gain advantage from fusarium safety. Sufficient moisture and a reprieve from the early-season warmth may additionally imply an extended grain filling interval, which might enable the crop to profit from a T3 fungicide’s capability to improve plant stay-green, says Johnson. He notes that U.Ok. analysis has proven that yield will enhance three bushels per day, for each further day the plant stays inexperienced in the course of the grain fill interval.

So long as the climate cooperates from a rainfall and temperature perspective, T3 fungicides will ship as marketed, says Johnson. “They will keep it green and bring added yield to the table, but if it goes crazy hot then all bets are off.” To assist his level, Johnson reminds us of the the recent, dry grain fill circumstances that growers in Ontario’s Essex and Kent Counties skilled throughout 2020. It was too brief and too scorching and T3 herbicides delivered little or no yield bump.

Johnson, and different agronomists attending a digital Exeter/Mount Forest Agribusiness assembly on Tuesday, agreed that it’s too early to hand over on a wheat crop that also has important yield potential and might seize a robust market worth.

Pioneer agronomist Greg Stopps famous that a good portion of the crop has not but reached the T3 timing and growers have a while to mull over their determination. “I would be a little worried if there is rain in the forecast or if humidity is starting to go up again through that flowering window,” stated Stopps in the course of the assembly. Below these circumstances, forgoing the appliance would elevate threat.

BASF agronomist Rob Miller stated it’s simply too early for Ontario growers to hand over on the wheat crop. “We haven’t even hit flowering. We’re just coming out of the boot,” stated Miller, noting there are extra average temperates within the forecast and a few rain potential.


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