<div dir="ltr">FYI<div><br></div><div>:-) or maybe I would not be smiling if I was growing Jonagold :-(</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Oct 13, 2016 at 10:06 AM, David Doud <span dir="ltr"><<a href="mailto:david_doud@me.com" target="_blank">david_doud@me.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><span class="">Thank you for this, Glen - it is new information to me - I have been twiddling my thumbs waiting for color here, not only on Jonagold, but on all the later varieties - tonight will be the first night of the season in the lower 40’s/upper30’s - hope that we’ll see some color development soon - <div>David Doud IN</div><div><br></div></span><div><br><div><blockquote type="cite"><span class=""><div>On Oct 13, 2016, at 12:10 AM, Glen Koehler <<a href="mailto:glen.koehler@maine.edu" target="_blank">glen.koehler@maine.edu</a>> wrote:</div><br class="m_4642882677407344360Apple-interchange-newline"></span><div><div class="h5"><div><div dir="ltr">Hi Art<div> A contributing factor to problems with fruit color this fall has been late arrival of minimum temperatures below 42F, A "rule of thumb" from a Cornell bulletin is that optimum coloring conditions require two days with low temperature below 42F, followed by a day with high temperature over 68F AND over 80% sunlight on that day. </div><div><br></div><div> The Ag-Radar estimate for Sanford 9 miles away from you (far enough that I wish we had closer data site, working on that) shows that the two days below 42F requirement was not met until September 26, and Sept. 27 had a high temperature over 68F. But the requirement for a day with high temperature over 68F AND over 80% sunshine was not met until October 6.</div><div><br></div><div> I don't see this formula as a powerful predictor, esp. since I've seen some good color improvement while checking traps and doing fall scab index over the past few weeks. And even if it was a robust predictor, it wasn't based on Jonagold. Still it gives some numbers to possibly help explain late coloring conditions this fall.</div><div><br></div><div> Easy to suspect the drought as a contributing factor. I'm also wondering if you used ReTain on these Jonagold. If so, do you think that had any effect on coloring?</div><div><br></div><div>- Glen</div></div><div class="gmail_extra"><br clear="all"><div><div class="m_4642882677407344360gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Glen Koehler<font face="comic sans ms,sans-serif"><br></font><font size="1"><font size="2">University of Maine Cooperative Extension<br>Pest Management Office<br></font></font>Voice: Office <a href="tel:207-581-3882" value="+12075813882" target="_blank">207-581-3882</a>, Cell <a href="tel:207-485-0918" value="+12074850918" target="_blank">207-485-0918</a><br>491 College Avenue, Orono, ME 04473</div></div><div><a href="https://extension.umaine.edu/ipm/programs/apple/" target="_blank">UMaine Apple IPM</a></div><div><a href="https://extension.umaine.edu/ipm/ag-radar-apple-sites/" target="_blank">Ag-Radar</a></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Wed, Oct 12, 2016 at 2:19 PM, kellyorchards <span dir="ltr"><<a href="mailto:kellyorchards@gmail.com" target="_blank">kellyorchards@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>Why are my Jonagolds not coloring? Can this be an issue if they have a heavy crop?</div><div><br></div><div><br></div><div><br></div><div><div style="font-size:100%">Art Kelly<br>Kelly Orchards<br>Acton, Maine</div></div></div><br>______________________________<wbr>_________________<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr">Jon Clements<br>aka 'Mr Honeycrisp'</div><div dir="ltr">University of Massachusetts Amherst Extension<br>UMass Cold Spring Orchard<br>393 Sabin St.<br>Belchertown, MA 01007<br>413-478-7219<br><a href="http://umassfruit.com" target="_blank">umassfruit.com</a><br></div></div></div></div>
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