Spraying leaves down when hot?

General Fruit Growing
1

So, I know there are not a lot of avocado growers on this site, but I read an article regarding spraying an avocado trees leaves down with water to help with transpiration during very hot days. To me this seems like it would create a magnifying glass effect and burn the leaves. But it came from a respected author and wanted to hear any other thoughts?

2

On smooth foliage where water droplets flatten out, the focal point of the droplet is not at the leaf surface, no burning occurs.

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3

Thanks.