Suggest: Stop harvesting on start of Green Day

[feeltheburn]

"Umm, dude, WTF, today is Mother Nature's day, it's poor taste to harvest!"

If you're harvesting when Green Day starts, you continue trying to harvest, getting this message every time a harvest attempt would normally be made.

Can lead to a flooded text.

Suggest: When this message appears, if it's possible automatically do something that would normally stop harvests.