An important time to spray apple trees is during the dormant season. Spraying at this time can help prevent pests and diseases in the months to come.

When should apple trees be sprayed for insects?

Timing is critical, with a first spray about two weeks after most petals have fallen from the tree's blossoms, followed by a second spray one or two weeks later. Repeat this treatment in late July or early August or whenever you notice new larval holes appearing on the fruit.

How often do you need to spray apple trees?

Controls pests on contact. Pests must be present for spray to be effective. Application: Follow the label. Apply as directed, every 10 days, up to 6 times per season (max) as needed.