How to Stop Acorn Production

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Things You'll Need

  • Garden sprayer

  • Fruit elimination spray

  • Water

  • Ladder

Fruit elimination spray must be applied before the tree leafs out.

Oak trees are a revered resident of many neighborhoods, in some cases having lived 200 years or more. Oak trees do not begin producing acorns until they are at least 20 years old and sometimes wait until they are at least 50. A tree must be at least 70 years old before it produces thousands of acorns in the fall. Aside from cutting down the offending oak tree, there are no absolute ways to stop an oak tree from producing acorns.

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Step 1

Apply a fruit elimination spray to your oak tree. The key to applying a fruit elimination spray, such as Florel, is the time of year. If you don't spray under the proper conditions, it won't work.

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Step 2

Wait for spring, just before the tree starts to leaf out, to apply the spray. Temperatures must be at least 65 degrees consistently during the day for best results. Spraying too early or too late in the season will render the spray ineffective.

Step 3

Mix 16 ounces of the chemical in 1 gallon of water in a garden sprayer.

Step 4

Spray each individual leaf bundle, using a ladder as necessary. In the first year, acorn production will be reduced but not eliminated. In following years, the fruit production will slow and then stop.

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