There’s something about the act of feeding & cleaning plants...😌 Here’s our Plant Spray for Bugs: 1 Tbsp. (15 mL) of Dr. Bronner's Pure-Castile Liquid Soap in a quart (1 L) of water. Optional: Add 1⁄2 tsp. (1.25 mL) cayenne pepper or cinnamon. Spray plants twice daily in the cool of the day until infestation clears.