What is the white substance on my plants?

Powdery mildew is one of the most commonly occurring plant problems. It is a fungal disease that affects plant leaves and stems, coating them in what looks like a white or gray powder-like substance. The white coating greatly diminishes the appearance of the plant, but it is not fatal unless left uncontrolled.Click to see full answer. Similarly one may ask, how do you get rid of white stuff on plants?Combine one tablespoon baking soda and one-half teaspoon of liquid, non-detergent soap with one gallon of water, and spray the mixture liberally on the plants. Mouthwash. The mouthwash you may use on a daily basis for killing the germs in your mouth can also be effective at killing powdery mildew spores.One may also ask, how do you get rid of powdery mildew on houseplants? Powdery mildew treatment indoors may be achieved with common household ingredients. Water the plants well from under the foliage, then apply a spray of 1 tablespoon baking soda, 1/2 teaspoon liquid soap and 1 gallon of water. You may also add 1 tablespoon of horticultural oil to help the mixture adhere to the fungus. Also question is, how do you treat white fungus in soil? Soil sterilization helps control white fungus in warm climates. Prepare the soil for planting, including removing plant debris and tilling. Rake so the soil is as flat as possible. Water so the soil is moist to a depth of 12 inches, and then cover the entire area with 0.025 to 0.4 mm clear plastic sheeting.Can I spray vinegar on houseplants?While you can’t spray it directly on your houseplants, you can soak some towels in white vinegar and wrap them around your plants’ containers to keep your kitty away from them. Another option is to spray a few silk plants with vinegar and place them among your real houseplants.