How To Make Your Own Yeast Fertilizer Or Spray If you'd like to ... yeast can also lend an eco-friendly hand as a foliar spray, which means you would spray the leaves directly.

That tech, according to Hedrick, is Foliar Scripts. “The fertilizer guesswork is over ... are deficient by x amount and that you need to spray exactly 18 ounces,” Hedrick details.

you can make a foliar spray by combining 1 ounce of baker's yeast with about 2 1/2 gallons of warm water. Mix well, and let your fertilizer sit for at least an hour before spraying directly on the ...