an apple orchard in fall

It's time to spray your fruit trees. These important preventative measures reduce your workload come springtime. With these simple steps, properly caring for your fruit trees is as easy as 1-2-3!

bottles of Horticultural Oil and Liqui-CopMonterrey Horticultural Oil and Liqui-Cop are available at Al's.


Spray your fruit trees in the fall with copper fungicide and horticultural oil as soon as all the leaves have dropped. This helps control bacterial blight, leaf curl, and other fungal diseases that can overwinter, as well as insects and their eggs.


Spray a second time in winter with copper fungicide and horticultural oil around the end of December.


Apply the final dormant spray application around mid-February. Be sure to follow the manufacturer's directions on label.

Steps to success

  • Always remove any remaining leaves or fruit from your trees.
  • Clean up any fallen leaves or branches from around your trees, as these can harbor bacteria and insects.
  • Choose a dry, cool day above 40° - we don't want the rain washing away your hard work!
  • Spray from the ground to the top of the bare tree, ensuring that all branches are covered
  • Prune tree to promote good structure and help increase air circulation. Be sure to sanitize pruning equipment prior to and after pruning to help prevent the spread of disease.
  • Congratulate yourself on a job well done!