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  • From: "Mark Angermayer" <hangermayer@isp.com>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Disguised fly
  • Date: Wed, 18 Feb 2009 13:08:54 -0600

Jim,

Are you sure it's not Rasp. crown borer? They come out in Sept. and look
just like a yellow jacket. However, they don't eat fruit. I have to deal
with them here. See image:

http://www.uiweb.uidaho.edu/so-id/entomology/Raspberry%20crown%20borer-ad.jpg

Mark
KS


----- Original Message -----
From: "Robert Stanton" <>
To: <nafex@lists.ibiblio.org>
Sent: Wednesday, February 18, 2009 9:58 AM
Subject: Re: [NAFEX] Disguised fly


> Jim,
>
> I'm an entomologist-in-training, though my focus is more on ecology
> and behavior than "pests."
>
> Your fly sounds like it could be in the family Syrphidae, which are
> prominent hymenoptera-mimics. I'm not familiar with adult syrphids
> that consume actual fruit, though - they're typically nectar feeders
> at that stage. If you have a picture, or a collected sample, that
> would go a long way in helping lead to a positive identification.
>
> Was last year the first you noticed its presence? Are there normally
> yellowjackets around the orchard as well? What other insects are
> present?
>
> I'll try to leaf through some guides this evening and see what else
> could be a match.
>
> Robert
>
> Date: Wed, 18 Feb 2009 09:41:08 -0600
> From: "Jim Fruth" <>
> Subject: [NAFEX] Disguised fly
> To: "NAFEX" <nafex@lists.ibiblio.org>
> Message-ID: <34A45E8AD1D2441FA8205099A9358D21@ibma20plaptop>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Do we have any entomologists in the group?
>
> In September, my patch of Fall bearing red raspberries is visited by
> droves of a fly that resembles a Yellow Jacket. It is obviously a fly by
> the wing structure and it is about twice as large as a House Fly. It
> competes with Yellow Jackets in feeding on ripe fruits. Unlike Yellow
> Jackets, it doesn't sting. It is a pest by its very presence in the berry
> patch because, before I reach to pick a berry, I have to look to be sure I
> won't be grabbing hold of a Yellow Jacket. In other words, it is a pest
> because it slows the pick.
> Do any of you have this fly? What is it? Is there a way to get rid of
> it? Obviously, I can't spray because I'd contaminate the fruit.
>
> Jim Fruth
> Brambleberry Farm
> Pequot Lakes, MN 56472
> For jams, jellies, syrups and more:
> www.jellygal.com
> 1-877-265-6856 (Toll Free)
> 1-218-831-7018 (My Cell)
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