Iron and take-all patch
July 26, 2020
We recently highlighted research by Dr. Paul Koch describing management of dollar spot using routine applications of ferrous sulfate (FeSO₄\*7H₂O). But now, there may be an interesting twist to the story of ferrous sulfate suppression of dollar spot.
A consultant peer of Larry’s in Ontario, Canada shared some interesting observations and data regarding use of ferrous sulfate (FeSO₄\*7H₂O) for control of dollar spot. Several of his clients had noticed an increase in take-all patch attacking bentgrass following routine use of…