From: Mark Angermayer <hangermayer@isp.com>
To: North American Fruit Explorers <nafex@lists.ibiblio.org>
Sent: Sunday, February 15, 2009 12:07:22
PM
Subject: Re: [NAFEX] GF
120 for cherry fruit fly and neonicotinoid class ofpesticides
A
neonicitiniod has been banned in Germany. They claim it's a culprit
in
colony collapse disorder
http://www.lancasterfarming.com/node/1303Some of the
beekeepers can correct me, but I thought the latest research was
a viral
complex causing the disorder. I think there's a tendency for
people
studying this to jump to conclusions. I remember a few years
ago some
people were convinced CCD was caused by genetically modified
corn. Even on
this list, there was one individual so convinced that
GM corn was the
culprit, he flat insulted some folks who didn't accept the
GM theory.
There's lots of bees around here. Black bees (don't
know what kind they
are) pollinate our sweet corn. There's also a
beekeeper close by. So far
he hasn't seen any CCD, but he doesn't
move his bees, which may help.
Mark
KS
----- Original
Message -----
From: "Ginda Fisher" <>
To: "North American Fruit
Explorers" <
nafex@lists.ibiblio.org>
Sent:
Sunday, February 15, 2009 9:00 AM
Subject: Re: [NAFEX] GF 120 for cherry
fruit fly and neonicotinoid class
ofpesticides
>
> On
Feb 11, 2009, at 1:28 PM, Webmail wynne wrote:
>
> > . .
.
> > I have read that the Germans have done research suggesting
the
> > neonicotinoid class of pesticides may be/are involved in the
decrease
> > of bee populations worldwide. In my certified
organic field, i have
> > eliminated the use of Entrust (spinosad)
for codling moth due to its
> > widespread
> > kill
abilities--the few times i have sprayed this material, all
> >
populations
> > of insects (including the beneficials) have been
decimated. . .
>
> Thanks, that's very interesting. I've
used spinosad in my yard for
> the past two years. I sprayed it on
the apples and blueberries, and I
> hired a tree company to spray my
oaks. I live in the middle of a
> serious infestation of winter
moths, and spinosad appeared less toxic
> to me and my pets than the
other options that work. (BT is
> recommended, but you have to
spray it within a one or two day window
> of when the eggs hatch to have
any effect at all, and even then most
> of them survive.) How
serious is the infestation? My sister, a
> couple miles away, had
an apple and a pear tree completely defoliated
> - not a single bit of
leaf showing. (They resprouted after the winter
> moth season
ended, and survived, but that can't be good for the
> trees.) I
had zero apple blossoms (they mostly eat the heart out of
> swelling
buds, and selectively eat the fruiting buds before the
> vegetative
buds) and pretty scruffy looking oak leaves the year before
> I hired
the tree company.
>
> I had a long discussion about bees with the
tree company, which claims
> to care about such things. They spray
twice and the second spray has
> been during apple bloom but they both
drape the trees with cloth and
> avoid spraying in that direction.
I never spray anything in bloom, of
> course, and with my little
hand-sprayer, there's not enough drift to
> worry about it getting on
the dandelions, etc. (I have flowering
> weeds, but not right
underneath the apples or especially close to the
> blueberries.)
But I'm pretty sure there's drift onto flowering weeds
> from spraying
the oaks.
>
> I haven't seen a honey bee here in more than a
decade, so I'm not
> concerned about contributing to colony collapse
disorder, but I have
> noticed a reduction in the number of
bumblebees. I have had excellent
> pollination both years I used
spinosad, despite the decrease in number
> of bees I see. And my
late season insect population has been okay,
> including praying
mantises and other rarer bugs. Still, this is an
> excellent
reason to monitor the situation carefully, and stop spraying
> as soon
as possible. I understand some winter moth parasite or
> disease
has been released locally, and there's hope the population
> will drop
from "infestation" to "nuisance" in a few more years.
>
> Ginda
Fisher
> eastern Mass., zone 6
>
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