My plant has white fuzz on it - what is it?

Mealybugs will commonly leave a white residue on plant leaves that resembles cotton. This residue is either the egg sacs of the mealybugs or the pests themselves. You may also find that the plant is sticky too. This is honeydew secreted by the mealybugs. Scrape away any white residue and spots. Then, using a solution of 1 part alcohol to 1 part water with some dish soap mixed in, wash down the entire plant. Let the plant sit for a few days and repeat the process. Another mealybug home pest control is to apply neem oil to the plant, which is safe for the plant and also doubles as a fungicide.