[Apple-Crop] Thinning and tree stress

[Arthur Kelly]

We are in the thinning window now and I expect good weather coming up.  I just wonder if thinning will be enhanced if the trees have some additional source of stress.  The peach foliage is pale green for instance.

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> On Jun 6, 2017, at 5:45 PM, maurice tougas <appleman.maurice at gmail.com> wrote:
> 
> My understanding Art is that several warm, very cloudy days result in carbohydrate stress and therefore increases thinning. That said, assuming that your soils are waterlogged due to several wet days bordering on being snowy up there in Maine, the carb stress is not pronounced. I'm just starting to see the effects of thinning sprays applied two weeks plus ago as we've been staying in the 40s/50s too. So far thinning effect has been what I would consider modest (except Honeycrisp which appear to be thinning quite nicely!).Warm weather predicted for weekend will tell us more and probably give you a good opportunity if your fruit is still in susceptible range. My two cents.
> 
> Mo Tougas
> 
> 
>> On Tue, Jun 6, 2017 at 3:23 PM, Smith, Timothy J <smithtj at wsu.edu> wrote:
>> Stressed trees tend to retain fruit, but waterlogging may tend to drop fruit.  I don’t know if this is what’s happening in your block. 
>> 
>>  
>> 
>> From: apple-crop [mailto:apple-crop-bounces at virtualorchard.com] On Behalf Of kellyorchards
>> Sent: Tuesday, June 06, 2017 9:54 AM
>> To: Apple-Crop <apple-crop at virtualorchard.com>
>> Subject: [Apple-Crop] Thinning and tree stress
>> 
>>  
>> 
>> How much of a factor in thinning is tree stress related to waterlogged soils?
>> 
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>> 
>> Art Kelly
>> Kelly Orchards
>> Acton, Maine
>> 
>> 
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> 
> 
> 
> -- 
> Maurice Tougas
> Tougas Family Farm
> Northborough,MA 01532
> 508-450-0844
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