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Determining the avocado tree tissue PH

My curiosity started as I'm trying to add additional products to an avocado tree injection. Since the Laurel Wilt appears to be here to stay. There are several products that can be injected and how other products can be combined with these injections to save time and bust the tree immune system. 
The question came up recently in one of the discussions:  What is the PH of the tree itself?  I could not find it on line so I decided to conduct my own experiment..

I took some slides of a Beta Avocado wood  and some green branches an leaves. I decided to do the green separate from the woody vascular tissue. I though they would have to be very close. 
Placed about 40 grams of the green tissue with 130 ml of distilled water, place it in the blender  to break down. Did the same with the woody vascular tissue.
The results:
The green tissue: Right after it came out of the blender 6.00 PH;  after resting 1/2 hour 5.70 PH.
The woody vascular tissue: Right after it came out of the blender 5.95 PH;  after resting 1/2 hour 5.72 PH.
It looks like close to neutral with a slight tendency toward acid. This tree is growing in a soil PH of about 8.0

I found an article from 1941 And comes up with very similar results.  
​http://www.avocadosource.com/
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