I wonder how this would work in zone pushing areas like ours. I really like the idea and believe it would be advantageous and cost effective. I don't know how much it would have helped this past summer due to all of the rain and cloudy skies we have had, but I'm sure it wouldn't have hurt. Another 2 1/2 inches today...but this is not our typical summer weather, we usually have dry spells with high humidity. It may be hard to apply to existing trees, but should be possible.
TFN