On 24-6-2016 9:16, Stephen wrote:
> 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.

Yes indeed, now that you mention it. I think that was also done in other 
countries. I recall them at least from France.

>
>
>> It may be something like the blue paint around
>> windows in Mediterranean countries to keep flies from coming in.
>
> I didn't know that.
>

I have always wondered about it.

-- 
Thomas

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