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nafex - RE: [NAFEX] curculio

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  • From: "Ed Fackler" <efackler@woh.rr.com>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: RE: [NAFEX] curculio
  • Date: Sat, 18 Jun 2005 08:02:16 -0400

Lee (and other interested parties):

The activity of Surround is that the coating on foliage and fruit
prevents an insect (many species, anyway) from literally crawling or
negiotiating the surface of foliage or fruit. Therefore TOTAL COVERAGE is
mandatory during curculio egg laying and/or feeding activity. And given the
rapid spring time growth, weekly applications WHICH COVER THE ENTIRE TREE is
necessary to get the desired results.

Hope this helps.

Ed, So. Ohio, doing just fine.......

-----Original Message-----
From: nafex-bounces@lists.ibiblio.org
[mailto:nafex-bounces@lists.ibiblio.org]On Behalf Of lee reich
Sent: Saturday, June 18, 2005 7:53 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] curculio


I mix sulfur in with my all my Surround sprays and, as I said, still
extensive curculio damage -- my rough guess is 80% despite diligent
spraying and good coverage using backpack Stihl mist sprayer.

Lee Reich, PhD
www.leereich.com



On Jun 17, 2005, at 5:12 PM, Stephen Sadler wrote:

> Researching a little further, I find a study that found that
> Surround WP
> combined with sulfur and lime sulfur controlled plum curculio
> better than
> Surround alone. No, I don't know why the sulfur would help. Maybe
> it's
> irritating to the bugs, maybe there are less fungal diseases,
> therefore less
> fruit fall, therefore less immediate habitat - but I'm sticking to
> my "I
> don't know."
>
> Rodale suggests a spray of Pyrethrum at pink and/or petal fall in
> an effort
> to further control PC, followed by Surround from petal fall through
> June.
>
> Stephen Sadler, Ph.D.
> USDA 9, AHS heat zone 8,
> Sacramento CA - Mediterranean climate
>
>
>
>
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