Return to the Garden Clinic Forum | Post a Follow-Up

Fly: friend or foe?

Posted by coffeehaus 7a Central VA (My Page) on
Sun, Jul 27, 14 at 15:59

Anyone know if this is a pest or a beneficial insect? I have seen several of these flies in the vicinity of egg masses of Harlequin bugs and Mexican Bean Beetles. I certainly don't want to squish a bug if it's on my side and maybe parasitizing the eggs of these noxious pests (wishful thinking?).

Follow-Up Postings:

RE: Fly: friend or foe?

My own follow-up: probably a Plant Hopper in the Derbid family. Not a pest, but not beneficial, either.

Here is a link that might be useful: Bug guide

RE: Fly: friend or foe?

Cool! I'm familiar only with the closed wing Derbidae. I'm pretty sure, however, that they are all phytophagous (plant feeders). Planthoppers have needle like mouthparts with which they pierce the epidermis and suck plant juices.

I wouldn't worry at all about seeing a few...just thought you should know the feeding habits of your pretty little truebug.

RE: Fly: friend or foe?

Thanks for the reassurance. It is a pretty little thing. Any minor damage these guys could inflict pales in comparison to that caused by the Harlequin Bugs. We have been hand-picking HBs and their egg cases from Brussels Sprouts and horseradish (of all things).

RE: Fly: friend or foe?

Horseradish is in the same plant family as your Brussels sprouts.

RE: Fly: friend or foe?

Gee, you learn something new every day!

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Garden Clinic Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here