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nafex - Re: [NAFEX] curculio

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  • From: lee reich <lreich@hvc.rr.com>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] curculio
  • Date: Sat, 18 Jun 2005 07:52:48 -0400

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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