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Why shouldn't I Foliar Feed with the lights on?

Spinach vine foliar fed with light on.

Answer: Foliar Feeding with the lights on is like burning ants under a magnifying glass. When the light hits the water, it is like going through a magnifying glass burning your plants; making you think that the plants are sick or diseased. In some cases with good wetting agents you can completely burn your plants to a crisp. Your plants must be dry when the light comes on or you WILL burn them. Burning the plants while foliar feeding will make the plants more likely to get sick.

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