How to Spray Apple Trees After Leaves Are On


As most fruit growers would tell you, fruit trees such as the apple tree require regular applications of liquid fruit tree spray to prevent infestations of bugs, fungus and diseases. Spraying is needed both before your trees leaf out and after the leaves are on your tree. Apple diseases that regular spraying will prevent include black rot, leaf spot, sooty blotch and apple scab. Bugs that infest apple trees include tent caterpillars and aphids. Administer sprays when your apple trees are in blossom, after the blooms have fallen from the trees and every two weeks after that until a week before your apple harvest.

Step 1

Put on protective clothing, including eyewear, gloves, a long-sleeved shirt and long pants, and breathing protection.

Step 2

Mix chemicals according to package directions.

Step 3

Pour chemicals into a pump-spray applicator. Grasp the pump lever, and pump it up and down to prime the spray applicator.

Step 4

Grasp the spray wand of your applicator in one hand, and carry the holding tank with the chemicals in the other. Hold the spray wand away from you, and turn it on. The chemicals should emerge from the tip of the wand in a fine mist.

Step 5

Use even strokes to distribute the mist over the trunk, branches and leaves of your apple tree.

Tips and Warnings

  • Read all warnings enclosed in the spray instructions. Take all recommended precautions when applying the spray. To prevent spreading the chemicals to other plants, do not apply them on a windy day.

Things You'll Need

  • Protective gear
  • Pump spray applicator
  • Multipurpose fungicide and pesticide for apple trees


  • North Carolina State Extension: Growing Apple Trees in the Home Garden
  • University of Rhode Island: Home Tree Pest Management Guide
  • Iowa State University: 2010 Midwest Tree Fruit Spray Guide

Who Can Help

  • Yardener: Solving Apple Tree Problems
Keywords: apple tree spray, apple tree pesticides, orchard maintenance

About this Author

After 10 years experience in writing, Tracy S. Morris has countless articles and two novels to her credit. Her work has appeared in national magazines and newspapers, including "Ferrets" and "CatFancy," as well as the "Lexington Herald Leader" and "The Tulsa World," and several websites.