On 6/24/2016 7:55 AM, Thomas de Groot wrote:
> I do remember seeing whitewash on tree bases indeed. I don't know how
> effective that might be.

You might be remembering a leftover from WWII. In Britain we whitewashed 
the bases of trees that were next to roads. It made them more visible to 
headlights that were shuttered due to the blackout.


> It may be something like the blue paint around
> windows in Mediterranean countries to keep flies from coming in.

I didn't know that.

-- 

Regards
     Stephen

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