Asparagus Beetle blog post

How to: Manage Asparagus Beetles in Your Garden

Asparagus beetles have a similar look to lady bugs. As larvae, they are 1/3 inch long and are slug like in appearance. Adult asparagus beetles are about 1/4 inch in length and are metallic blue-black with either yellow or black spots on their wings. Both adult and larvae can be dangerous to your asparagus causing the tips to turn brown and twist.
Asparagus beetles have a similar look to lady bugs. As larvae, they are 1/3 inch long and are slug like in appearance. Adult asparagus beetles are about 1/4 inch in length and are metallic blue-black with either yellow or black spots on their wings. Both adult and larvae can be dangerous to your asparagus causing the tips to turn brown and twist.
 
Treatment Options:
  • Hand-picking and placing in a soapy pail of water is going to be the best action for making sure this asparagus beetle does not take over your asparagus crop.
  • Beneficial insects such as trichogramma wasps, lady bugs, and lacewings can help to fight against the larvae and eggs.
  • Beneficial nematodes have also been shown to be effective if you have a bad infestation.

Plants to Watch for:

  • Of course, as the name of the beetle says “Asparagus“!

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