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nafex - Re: [NAFEX] New Apple Pest

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  • From: "Dennis Norton" <dmnorton@royaloakfarmorchard.com>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] New Apple Pest
  • Date: Tue, 20 Jun 2006 00:04:17 -0500

Jim,

Sounds like the work of the SGF (Speckled Green Fruitworm). Aults of most species are large brownish moths with wingspans of about 40 mm. The Larvae are light green with a pair of lateral white stripes and additional white spots and are about 35-40 mm long. They have one generation per year. The pupae overwinter in the soil and adults emerge starting early in the spring. Egg hatch occurs at the half inch green stage. Larvae feed on leaves, buds and developing fruit. The larval feeding results in deep, hollowed out developing fruit and corky scars on more mature fruit. Looks just like a spoon did it! I've been trapping the adults moths for about 2 weeks now and have the same fruit damage you describe. Our damage is not economic, and they are usually taken care of with an Imidan or Assail spray, which we use for codling moth and plum curculio. So far this season, we have done only one Assail spray and one Imidan spray because Assail did not knock out the PC (plum curculio). Pyethroids have provided good control for this pest. Hope this may help.

Dennis Norton
Royal Oak Farm Orchard
http://www.royaloakfarmorchard.com
http://www.theorchardkeeper.blogspot.com
----- Original Message ----- From: "Brungardt, Sam" <Sam.Brungardt@state.mn.us>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Monday, June 19, 2006 9:15 AM
Subject: Re: [NAFEX] New Apple Pest


I'd put it in alcohol and send it to the Dept. of Entomology of the
University of Minnesota, St. Paul. -- Sam Brungardt, St. Paul, Minn.

-----Original Message-----
From: nafex-bounces@lists.ibiblio.org
[mailto:nafex-bounces@lists.ibiblio.org] On Behalf Of Jim Fruth
Sent: Monday, June 19, 2006 8:06 AM
To: nafex@lists.ibiblio.org
Subject: [NAFEX] New Apple Pest


Of the few apples on my trees, a new pest has discovered them. All
of the apples are bagged and some critter eats a hole through the bag,
then devours most of the marble-sized apples, hollowing it out as though
it was done with a jagged spoon. There are similar chunks eaten out of
some of my black raspberry primocanes and suspect the same critter is
doing both. I have the pupa of one of these critters in a jar. When it
hatches, who would you suggest I send it to to find out what it is?
--

Jim Fruth
Brambleberry Farm
Pequot Lakes, MN
www.bberryfarm.com
Jams, Jellies and Syrups
(218)568-8483 [Store]
(218)831-7018 [My cell]



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