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<div class="moz-cite-prefix">Hi Vincent, <br>
<br>
I'm sorry that our trials resulted in the opposite expectation.
Most of the company protocols ask me to apply their products at
100 gal/A. I guess they were hoping to increase the chance of
showing product injury at my field days. I thought it was a more
universal tree row volume for apples, my mistake. The field crews
at Geneva and Ithaca sprays everything at 100 gal/A. I guess it's
an underhanded attempt to potentially injure our plots with
copper. With all my dilute handgun applications, I'm surprised
that I don't have potatoes. I guess I keep getting lucky. <br>
<br>
Best, <br>
Kerik<br>
</div>
<blockquote
cite="mid:52649C45-52A9-40D7-8CCA-817DA15F189B@irda.qc.ca"
type="cite">
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Hi Kerik,
<div class=""><br class="">
</div>
<div class="">I don’t know how much experience you actually have
with airblast sprayer trials varying volume, but this is
something we do routinely.</div>
<div class=""><br class="">
</div>
<div class="">Evidence of copper injury with high volume sprays
dates back (at least) to 1972. Look it up. Classic experiments
demonstrate the same amount of copper can defoliate plants or
result in no injury, just by varying volume.</div>
<div class=""><br class="">
</div>
<div class="">Let’s say I have a hard time “swallowing” your
aspirin analogy…! Let’s stick to apples, OK?</div>
<div class=""><br class="">
</div>
<div class="">The fact that labels require you to apply large
volumes of water doesn’t make it a sound or sensible advice.</div>
<div class=""><br class="">
</div>
<div class="">Most likely, the labels reflect the trial
conditions. And most trials in the USA are run with high
volume….!</div>
<div class=""> </div>
<div class="">Vincent</div>
<div class="">
<div class=""><br class="">
</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">Le 1 mai 2017 à 08:31, Kerik D. Cox <<a
moz-do-not-send="true" href="mailto:kdc33@cornell.edu"
class="">kdc33@cornell.edu</a>> a écrit :</div>
<br class="Apple-interchange-newline">
<div class="">
<div bgcolor="#FFFFFF" text="#000000" class="">
<div class="moz-cite-prefix">Hi Vincent, <br class="">
<br class="">
We've found that concentration is potentially more
damaging with copper than higher volumes as the both
50gal and 100gal get the same amount of copper. It's
like taking powdered aspirin with half the
recommended amount of water. Also, many labels in
the US actually require that certain products be
applied in a minimum of 100 gal/A. If were
potentially injurious to apply at 100 gal/A, I
assure you that no company would include any such
statements on label. Actually, they would, without a
doubt, put statements saying that the product should
not be applied at 100 gal/A or injury would occur.
Excess water seems to just roll off the trees in
our experiments.
<br class="">
<br class="">
Best,<br class="">
Kerik<br class="">
</div>
<blockquote
cite="mid:6D2E166C-0E40-4425-B7E3-0160F780579E@irda.qc.ca"
type="cite" class="">
<div class="">I hope you meant a Low volume of
water. High volume = slow drying = russeting. This
is very easy to demonstrate. We do it as a
"control" in plots. We always have copper induced
russeting at 500 L/ha and none at 225 L/ha. <br
class="">
<br class="">
Vincent Philion, agr., M.Sc.</div>
<div class=""><br class="">
Le 1 mai 2017 à 08:05, Two Onion Farm <<a
moz-do-not-send="true"
href="mailto:farmer@twoonionfarm.com" class="">farmer@twoonionfarm.com</a>>
a écrit :<br class="">
<br class="">
</div>
<blockquote type="cite" class="">
<div class="">
<p class="">Kerik Cox at Cornell has done trials
with this combination for cedar apple rust,
summer fungal diseases, and fireblight and has
had good results.
<br class="">
</p>
<p class="">We started using the combination in
our organic orchard last year and did not see
any problems with fruit russeting. Kerik did
caution me to use a high volume of water to
avoid toxicity from the copper (100 gallons
per acre vs our normal 50 in our high density
orchard). We have used 2 qts/acre Cueva + 2
lbs/acre 2ble nickel.
<br class="">
</p>
<p class="">Kerik also suggested that the 2ble
nickel might be unnecessary and that cueva
alone might be sufficient, but that may be
theoretical at this point. The 2ble nickel
does add a lot of cost.<br class="">
</p>
<p class="">Chris</p>
<p class="">Chris & Juli McGuire <br
class="">
Two Onion Farm <br class="">
<a moz-do-not-send="true"
href="http://www.twoonionfarm.com/" class="">www.twoonionfarm.com</a><span
class="MsoHyperlink"></span>
<br class="">
19638 Cottage Inn Road <br class="">
Belmont, WI 53510 <br class="">
(608) 762-5335 <br class="">
<a moz-do-not-send="true"
href="mailto:farmer@twoonionfarm.com"
class="">farmer@twoonionfarm.com</a></p>
<br class="">
<div class="moz-cite-prefix">On 5/1/2017 6:43
AM, maurice tougas wrote:<br class="">
</div>
<blockquote
cite="mid:CANaNiPTDCmFD6_k_XsBOM4N=5wiQt8zBypENFnpVOERq_D3J5w@mail.gmail.com"
type="cite" class="">
<div dir="ltr" class="">A couple years ago I
recall discussion regarding the use of
Cueva/Double Nickel combination as an
alternative and/or rotation with strep for
fireblight management. Is anyone aware of
further research regarding this combination
esp as to regards to crop safety and
efficacy ?
<div class=""><br class="">
</div>
<div class="">Mo Tougas<br class=""
clear="all">
<div class=""><br class="">
</div>
-- <br class="">
<div class="gmail_signature"
data-smartmail="gmail_signature">Maurice
Tougas<br class="">
Tougas Family Farm<br class="">
Northborough,MA 01532<br class="">
508-450-0844</div>
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<pre class="moz-signature" cols="72">--
Kerik D. Cox, Ph.D., Associate Professor
Plant Pathology and Plant-Microbe Biology Section
School of Integrative Plant Science
Cornell University
221 Barton Lab
NYSAES
630 West North Street
Geneva, NY 14456 USA
E-mail: <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:kdc33@cornell.edu">kdc33@cornell.edu</a>
Faculty Office: (315) 787-2401
Fruit Pathology Lab: (315) 787-2402
FAX: (315) 787-2389
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<pre class="moz-signature" cols="72">--
Kerik D. Cox, Ph.D., Associate Professor
Plant Pathology and Plant-Microbe Biology Section
School of Integrative Plant Science
Cornell University
221 Barton Lab
NYSAES
630 West North Street
Geneva, NY 14456 USA
E-mail: <a class="moz-txt-link-abbreviated" href="mailto:kdc33@cornell.edu">kdc33@cornell.edu</a>
Faculty Office: (315) 787-2401
Fruit Pathology Lab: (315) 787-2402
FAX: (315) 787-2389
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