flea beetles

Asked August 4, 2014, 5:30 PM EDT

what do i do about flea beetles in mny veggie garden? they're awful this year!

Lane County Oregon flea beetles horticulture

1 Response

It is peak flea beetle time-the second generation of adults have emerged from the soil and are actively feeding. General information on flea beetles can be found on this is page on flea beetles on radishes, but you can put flea beetles into the search engine box on that site to look for the specific vegetables in your garden.

Garden insecticides can be used to manage flea beetles. However, to protect plants, applications usually must be reapplied. The plants produce continuous new growth and the highly mobile beetles may rapidly reinvade plantings. As with all pesticides, carefully read and follow all label directions especially when applying to edible plants.
Pesticides available for home garden use:

  • azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
  • carbaryl
  • cyfluthrin
  • deltamethrin
  • esfenvalerate
  • imidacloprid
  • permethrin
  • pyrethrins-Some formulations are OMRI-listed for organic use.
  • spinosad-Some formulations are OMRI-listed for organic use.

  • Next year, try floating row covers over your plants before they blossom. This will help block the flea beetles from being able to flying into your garden. Weed control is also helpful since it deprives the developing beetle larvae of food and shelter.

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