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crazycjj3

Bug ID Help Please

6 years ago

my emerald green arborvitae have a ton of flies around them. i am located on Long Island, NY. Are these leafminers?

Comments (20)

  • 6 years ago

    do you see any damage to the plants???


    have you added any mulch or 'nure or anything recently ...


    no matter how many.. bugs alone do not require a response.. unless they are actually doing damage ..


    ken


    ps: i cant imagine how many of those little things make a ton ... lol ...

  • 6 years ago
    last modified: 6 years ago

    Leafminers don't have long proboscises like that. I don't know a lot about insects, but it should be pretty obvious to someone who does. Bee flies look somewhat like that, but tend to be somewhat furry. Can't see in your pix. They are after flower nectar, like bees, and don't harm plants. If your arborvitae have flowers, which many do in the spring, that could be consistent.

  • 6 years ago

    i do have damage and do have leaf miners, need to get sprayed when they are hatched. so seeing if these are them.

  • 6 years ago

    lol. ok thank you. i had a bontanist here to spray them a few weeks back. said to call him when i see them flying arounnd so he can spray again

  • 6 years ago

    Leaf miners *are* flies, but not while they're actually mining. Liriomyza sativae. Leaf miner flies do not look at all like the insects you have in your pictures.

  • 6 years ago

    Some leafminers are moths. Some are flies. It's a lifestyle, not a taxonomic category.

    This thing looks a little like a parasitic wasp (but really hard to tell). Do they wander on the plant tapping their antennae on the leaves searching for leafminers?

  • 6 years ago

    Liriomyza sativae are referred to, in the scientific literature, as flies. That's the vegetable leaf miner. But it's true that Arborvitae leaf miners may be different.

  • PRO
    6 years ago

    The insect pictures resembles a braconid wasp.

    https://bugguide.net/node/view/1413434/bgimage

    They are beneficial, and sometimes form swarms.

  • 6 years ago
    last modified: 6 years ago

    These things have what appear to be a long, narrow, black proboscis. Wasps don't have any. Just two thin antennae. Strangely, the insect in the pictures above doesn't have any conspicuous antennae. That's a funny flying insect. But maybe the pictures aren't good enough to see them.

  • PRO
    6 years ago

    My interpretation of the images is that it is a dead insect in a death posture.

    One of the forelegs is pointed in front of the head. (it would be unusual for some people to hold a live unknown insect in their hand, and for it to stay still enough to photograph)

  • 6 years ago

    Catch another one, Chris! We need more pictures. :)

  • 6 years ago

    if the weather cooperates i will 100% be out there looking like a crazy swipping them outta the air

  • 6 years ago

    new pics!

  • 6 years ago

    Much better!


    I'm sticking with parasitic wasps. That's as far as I go in ID, but at least you know they won't hurt your plants (or you).

  • 6 years ago

    thank you all very much, learned some nee things.

    makes a sense, I am told my bushes have leafminers and these wasps apparently eat leafminers. might help solve the issue

  • 6 years ago

    Wow, these guys look quite different than the ones in your original pix. That's what you get when you try to identify a damaged insect with a few pixels.

  • 6 years ago

    Diglyphus isaea , I think.

  • 6 years ago

    so is there a remedy for leafminers that wont kill these "beneficial" wasps or just let the wasps do their thing

  • 6 years ago

    Other than the arborvitaes (and their leafminer IS a moth). Most leafiners are more of a cosmetic issue than something that actually harms plants. I never bother to treat for them. And beneficial wasps parasitize a lot more problem pests than just leafminer larvae. I would encourage them before I'd try to eliminate something else that is really not much of a problem at all.