Leaf Cleaners: Do Oils Clog Stomata or Attract Dust?

Follow-Up: Mineral Oil and WD-40 on Leaves

Cricket asks if mineral oil or WD-40 clog leaf pores (stomata) or attract more dust.

Expert Botany Lesson: Stomata Function and Shine Safety

Will Creed clarifies: top-surface stomata are mainly light receptors; dust blocks them, simulating low light. Underside stomata handle gas exchange and can be clogged by oils. Solution: apply shine only to top surfaces, keep leaves dust-free. Diluted mineral oil minimizes stickiness; WD-40 (silicone-based) dries hard without oily residue. Wipe with soft cloth/feather duster to remove dust.