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Bonide® Borer-Miner Killer

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Specifically formulated to prevent the tree damage caused by borers. Larvae of these bad bugs tunnel under bark on tree trunks or lower limbs. A visual clue that this may be a problem with your tree is a gummy residue on trees of stone-type fruits where borers are feeding. The trees can then lose vigor and may even eventually die.

Permethrin, the key ingredient of this insecticide, is by far the most effective killer of tree borers. Apply three times throughout spring and early summer. We recommend the last two applications about July 1st and July 15th.

  • 8 Ounce Concentrate: Makes 4 gallons of solution for fruit & nut trees.
  • 16 Ounce Concentrate: Makes 8 gallons of solution for fruit & nut trees.

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Agricultural regulations prohibit shipment of certain types of trees and plants. We do our best to provide a selection that gives everyone a chance to grow their own. This item cannot be shipped to all of DC.

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1 Year Warranty

Every order comes with our promise of satisfaction. If you aren't completely satisfied with your order, let us know within one year for a free one-time replacement or refund.


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Is there a visual of this type damage and does your spray kill the borer Angelo the tree survive!?
Joe S on Jan 31, 2016
BEST ANSWER: Hi, I've used this product on a 25-year-old North Star cherry tree, which I did not realize even had borers until a few years ago, when I noticed some extruded, hardened sap on the trunk, and tried to figure out what caused it. I can send you some pictures of the sap--in my experience it can be clear or amber in color, and it runs, or forms, in the spring, in response to the borers, and then hardens, so that it is impossible to remove without further damaging the tree. I used the Bonide product on the trunk (only: I did not spray the entire tree) in the spring, when I could poke into the still-soft sap. The Bonide product appears to have killed off the borers in the trunk, after a couple of years (at least I don't see anymore sap), but this year, I found the borers had managed to get into some higher-up branches (I hadn't noticed them), so I'll have to treat them too. According to the extension agent in my state, you soak the bark or branch where the borers are, and try to poke into the area of the sap (while it's still soft) with a wire, to kill the borer. You do this in spring, when the sap is running and do it again in midsummer when the moths are laying eggs on the tree trunks and branches. It's apparently safe to use with fruit trees, and the tree has no problem with it (at least, when it's applied directly to the trunk or branches--I don't know about spraying). I have pictures, but you should be able to find plenty of them on the web, showing the extruded sap that tells you that you have a borer problem...Hope this helps!

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