What is Pecan 'Super Scab'?

摘要

Pecan "super scab is everywhere from central Texas to the East to the Atlantic Ocean. This foliage and shuck disease was selected, isolated, propagated, and increased over many years by the use of outstanding foliar fungicide sprays, which prevented reproduction of 99.9 percent of the normal pecan scab fungus. Unfortunately, the resistant 0.1 percent strain was and is not controlled.