[NAFEX] PC survival in apples and a question about Assail

Mark Angermayer hangermayer at isp.com
Tue Feb 10 20:18:55 EST 2009


We don't seem to have a lot of curculio here, but everything I've read
indicates it can reproduce in apples.  It emits a substance (maybe
ethylene?) that tricks the tree into dropping the fruit.

Mark
KS
----- Original Message ----- 
From: "Steve" <>
To: "North American Fruit Explorers" <nafex at lists.ibiblio.org>
Sent: Tuesday, February 10, 2009 6:51 PM
Subject: Re: [NAFEX] PC survival in apples and a question about Assail


>
>
> Alan Haigh wrote:
> > Michael Phillips book "The Apple Grower" has a photo of PC larvae
> > exiting an apple drop so I think it is only the surviving apples that
> > crush the larvae.
>
> I was wondering about that. I wondered if some of the "June Drop" that
> we pretty much ignore contained curculio that continued to develop since
> those apples have stopped growing.
>
> >
> > Has anyone of you tried Assail against PC?  The 3 day REI of Imidan is
> > becomming inconvenient and I like the fact that Assail is systemic and
> > supposedly as durable as Imidan.
>
> I always shy away from systemic things on fruits and vegetables that I
> intend to eat. It seems that if they are systemic, certainly some of the
> chemical stays in the edible part.
> I tend to be pretty trusting and if "they" say that the fruit doesn't
> hurt you after being sprayed with a systemic, I kind of believe it.
> Still....
>
> Steve
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