Once the disease is present in the soil, it is very difficult to eliminate. Affected plants and the soil around these plants should be removed and discarded. Adjacent plants should be carefully inspected for the presence of rhizomorphs or mycelium, and these plants should also be removed. Wood chip mulch should be avoided, as Armillaria can survive using this as a food source. There are no soil fungicides currently registered that can remedy infections already in progress.
Most cultivars are highly susceptible to the fungus.
Although this disease has not been observed in New England, it has been found in significant amounts in New Jersey. Symptom incidence fluctuates from year to year, but tends to be highest during excessively wet years. A necrotic line pattern can be observed in the leaves as the color changes in the autumn. Fruit production is severely reduced. Management of Scorch.