Established Apple Trees that will be bearing fruit this year 2019
Its a rainy Spring. That means that our apple trees have to fight off a fungus that grows well during this type of wet climate. It’s called Apple Scab.
By the time it shows up, your 2019 fruit will be infected. Here’s the solution, but you need to do it within the next few days 4/23 - 4/25. Spray apple trees with a scab-preventing fungicide such as fixed copper, liquid sulfur or liquid lime sulfur during rainy springs.
Let me know if you have any further questions on this initial spraying.