Michael from Spring Hill, Tn writes
You can use Fung-onil Fungicide Concentrate to treat oak trees in the red group. Per the product label, Use 2 ¼ tsp per gallon of water or 3 Tbs (1.5 oz) per 4 gallons of water. Be sure to thoroughly cover all plant parts. Repeat applications at 7 to 14 day intervals until conditions are no longer favorable for disease.
Answer last updated on: 05/14/2018