Re: Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Karl Townsend
I'm located just west of Minneapolis,MN karl - Original Message - From: "Annette and Randy Bjorge Fruit Acres Farms" To: "Apple-Crop" Sent: Tuesday, May 11, 2010 12:17 PM Subject: Re: Apple-Crop: RE: Experience with cold temps post bloom Sorry but where are you at? Thanks, Annette

Apple-Crop: Scaffolds 5/10

2010-05-11 Thread Art Agnello
A new issue of Scaffolds Fruit Newsletter for the week of 5/10 has been posted at: http://www.nysaes.cornell.edu/ent/scaffolds/2010/ and includes the following articles: INSECTS - Orchard Radar - Early season insect control - Insect trap catches around the state DISEASES - Ear

Re: Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Annette and Randy Bjorge Fruit Acres Farms
Sorry but where are you at? Thanks, Annette Bjorge Coloma MI - Original Message - From: "Karl Townsend" To: "Apple-Crop" Sent: Tuesday, May 11, 2010 12:39 PM Subject: Re: Apple-Crop: RE: Experience with cold temps post bloom We got a bit colder at our site 26(bottom of hill) to 32.5(

Re: Apple-Crop: Experience with cold temps post bloom

2010-05-11 Thread Harold Larsen
John, Our experience here in Colorado has been that 30 minutes at critical temperatures begins to damage buds and fruit (fruit are not usually killed by 30 min exposure because they have a greater mass, but we have seen damage to tissues that can be expressed as sunken, leathery areas -- usua

Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Mike Belco
This link from MSU extension shows temp ranges and damage for various fruit crops: http://web1.msue.msu.edu/vanburen/crtmptxt.htm -Original Message- From: apple-crop@virtualorchard.net [mailto:apple-c...@virtualorchard.net] On Behalf Of Jourdain Jean-Marc Sent: Tuesday, May 11, 2010 9

Re: Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Karl Townsend
We got a bit colder at our site 26(bottom of hill) to 32.5(hilltop) and we're in late bloom. I'm guessing the trees I shouldn't have planted at the bottom of the hill are likely smoked. Any thinning suggestions for the middle of the orchard? Or ways to evaluate fruit set with frost? Karl ---

Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Fleming, William
I don't think your temps were cool enough and especially the duration long enough to cause damage. 28° is the temp for 10% kill post bloom but the duration needs to be about three hours. I wouldn't worry one bit. Growing apples in WA state we considered a frost like yours to be a free thinning o

Apple-Crop: RE: Experience with cold temps post bloom

2010-05-11 Thread Jourdain Jean-Marc
Hello In our conditions such conditions (temps x duration) would only suggest to me the probability of frost rings (russet rings at the stem surroundings) you keep the fruit load more or less and you have a big job to do to carefully hand thin. We are facing cool temperatures too here, frui

Apple-Crop: Experience with cold temps post bloom

2010-05-11 Thread John Lyman III
Hi, Had cold temps ranging from 27.5 to 29 in low spots in our orchard this morning. We are a week to 10 days past PF, and fruit size is on ave 8-12 mm. Does anyone have previous experience with cold temps at this stage that they could share? Thoughts on approach to thinning, what fruit damag