<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>My approach here may be a bit unorthodox, but it has produced good results for me. For most materials there are given ranges per acre on the label. I simply use the physical acreage covered by each load to mix. In some blocks my tankload will cover 6 acres, while some narrower row blocks a load will only cover 4 acres. I calculate acres using an old computer program I have, but I think with google earth you can draw out a shape on the satellite image and it will calculate the acreage. </div><div><br></div><div>I also adjust the rate of pesticide used per acre within the allowed range depending on tree size and arrangement. For the narrow row blocks where a tankload covers 4 acres I have found through experience that 3 pounds of captan is sufficient for most applications , meaning that 12 pounds of captan per load is needed. while the wider rows of standard trees approaching 100 years old next to them require the maximum 5 pound per acre rate of captan for consistent scab control. So that trip is covering 6 acres at the 5 pound rate, so a full 30 pounds of captan is needed in that mix. </div><div><br></div><div>I did use simpler numbers for illustration purposes. My real numbers involve pesky fractions that would make the example long and confusing. <br><div><div><br></div>Ernest Rollins<div>Rollins Orchards<br><div>207-717-7057</div><div><br></div></div></div></div><div><br>On Mar 2, 2017, at 9:15 AM, John Bruguiere <<a href="mailto:John@DickieBros.com">John@DickieBros.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p>Hello all, need some healthy practical advice on sprayer
calibration. Specifically air blast sprayers. For decades we
have measured a block of trees to determine acreage, sprayed out
tank and determined gallons per acre based on what area was
covered in tank. For example trees planted at 8 x 18 spacing gave
us 300 trees to acre, we sprayed out tank, counted trees and
determined that our sprayer puts out 2.5 acres per tank. we used
this to determine amount of material to put in the tank etc. All
the calibration formulas , I have seen require tree row
volume(height x row spacing) to be part of equation. I have 4-5
different spacings in 100 acres of orchard which makes it more of
a headache to constantly figure gallons per acre and spray
materials needed in each different block(thus the reason we simply
measured trees per acre). I know my speed , i know my gallons per
minute but can't find an equation that converts this to gallons
per acre without tree row volume.</p>
<p>need a simple but effective solution...any takers?</p>
<p>in Virginia we have plums in full bloom, fantasia and red gold
nectarines in pink and some open blooms, 21 degrees forecasted on
friday and saturday night.</p>
<p>God Bless,</p>
<p>John Bruguiere</p>
<p>Dickie Bros. Orchard<br>
</p>
<br>
<div class="moz-cite-prefix">On 1/30/2017 6:36 PM, Arthur Kelly
wrote:<br>
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<div>I agree Mo. We try and remove trees every year and plant
every year. I did use the word can to hedge the productive life
of a block.<br>
<br>
Sent from my iPhone</div>
<div><br>
On Jan 30, 2017, at 5:48 PM, maurice tougas <<a moz-do-not-send="true" href="mailto:appleman.maurice@gmail.com">appleman.maurice@gmail.com</a>>
wrote:<br>
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<div>
<div dir="ltr">Art
<div><br>
</div>
<div>I agree that it's great to be out pruning. I disagree
that you should expect a longer productive life with high
density systems. My goal here is to be looking at
replanting when the orchard reaches twenty years or so.
New varieties, strains of varieties and improved planting
system encourage 5% renewal in my opinion. </div>
<div><br>
</div>
<div>My best to you</div>
<div>Mo Tougas</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mon, Jan 30, 2017 at 1:27 PM,
George Greene <span dir="ltr"><<a moz-do-not-send="true" href="mailto:cortland9@icloud.com" target="_blank">cortland9@icloud.com</a>></span>
wrote:<br>
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<div style="word-wrap:break-word">Art:
<div><br>
</div>
<div>Your comment makes sense to me. Right now I have
a cold and I fell on the ice on Dec. 29th and I am
still suffering. Pt may help but it may take a
while.</div>
<div><br>
</div>
<div>I suppose that you are enjoying the warmer
weather.</div>
<div><br>
</div>
<div>Be well, George</div>
<div><br>
<div>
<blockquote type="cite">
<div>
<div class="h5">
<div>On Jan 30, 2017, at 12:43 PM,
kellyorchards <<a moz-do-not-send="true" href="mailto:kellyorchards@gmail.com" target="_blank">kellyorchards@gmail.com</a>>
wrote:</div>
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<div>
<div class="h5">
<div>
<div>Ruminations after a morning
pruning. The weather is ideal. The
temps are in the high 20's, the wind
is light and the sun is shining.
Weather like this is why we live
here. Permanent limbs ultimately and
inevitably get too large. This is why
high density systems can have a longer
productive life than less dense
orchards.</div>
<div><br>
</div>
<div><br>
</div>
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<div><br>
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<div>
<div style="font-size:100%">Art Kelly<br>
Kelly Orchards<br>
Acton, Maine</div>
</div>
</div>
</div>
</div>
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<div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div>George Greene</div>
<div>
<div>68 Willow Lane</div>
<div>Wiscasset, ME 04578</div>
<div><a moz-do-not-send="true" href="tel:%28207%29%20882-8074" value="+12078828074" target="_blank">207-882-8074</a></div>
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-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">Maurice Tougas<br>
Tougas Family Farm<br>
Northborough,MA 01532<br>
508-450-0844</div>
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