Peace lilies are especially popular in the spring.
Before spraying the peace lily, test a small area and monitor for 24 hours to be sure the plant suffers no ill effects. As the infection spreads, the powdery coating can cover much of the leaf surface. If the plant is severely infected and damaged, consider discarding it.
Outdoors, peace lilies planted in shade and humid conditions are vulnerable.The most notable symptom is the white, powdery spots sprinkled across the surface or undersides of the peace lily's leaves. A solution of 1 tsp. This eliminates the risk of developing an odor of sour milk inside your home while treating your peace lily. If that doesn't work, the problem may be powdery mildew, a common fungal infection.Many species of fungi cause powdery mildew, but they all generally travel on the wind, and can infect peace lilies in the garden as well as houseplants that spend time outdoors. When spraying either solution, also spray a thin border of healthy tissue on the infected leaves to prevent the fungus from spreading.While either spray can be used indoors or out, the milk spray tends to work best outdoors. Apply it every week or so.
With their large, distinctive white blooms, peace lilies come into prominence around the Easter holiday but remain lovely all year long. White Powder Fungus on a Peace Lily Peace lilies (Spathiphyllum spp.) As the infection worsens, the white fuzzy spots spread until the plant looks like you've dusted it with flour. Eradicants treat active infections. of water also kills powdery mildew without harming the lily. Follow label instructions on all fungicides carefully, because mixing and application rates may vary among brands.Audrey Lynn has been a journalist and writer since 1974. Neem oil acts as an eradicant to treat active infections.
of liquid dish soap and 1 qt. Indoors, use a damp sponge or give the peace lily a shower in the kitchen sink or bathtub. Peace lilies (Spathiphyllum spp.)
Repeat every seven to 14 days.
While powdery mildew is rarely deadly, it is unsightly, can deform new leaves and blooms, and causes leaf drop.Create your own fungicidal solution to get rid of powdery mildew on your peace lily. Watch the plants for signs of sunburn, such as browning leaf tips or margins.
White Powder Fungus on a Peace Lily Peace Lily.
Some powdery mildew spores can be washed off the plant. The "Clevelandii" peace lily cultivar (Spathiphyllum wallisii "Clevelandii") can grow outdoors in USDA zones 8 through 11. Mix 1 fluid ounce of neem oil concentrate in 1 gallon of water, mixing the solution thoroughly. When it first appears, you'll see a few white specks on the upper side of the leaves. White Powder Fungus on a Peace Lily Peace lilies (Spathiphyllum spp.) The "Clevelandii" peace lily cultivar (Spathiphyllum wallisii "Clevelandii") can grow outdoors in USDA zones 8 … For a simple, low-toxicity protectant fungicide, mix 2.5 tablespoons of commercially available horticultural oil with 1 gallon of water and 4 teaspoons of baking soda and spray all the plant's surfaces. Peace lilies have dark, glossy green leaves -- a perfect backdrop for the white, green or pink spathes that appear on long, slender stalks. If the infection doesn't clear up in a few weeks, you'll likely need to replace the infected plant.
Fungicides.
Spores can also hitch a ride on your hands, shoes or clothing to get from the garden to your otherwise protected peace lily houseplant.
Threadlike, white mycelium dig into the foliage to steal nutrients, and tiny black dots may form in the center of the white ones.
The small flower clusters cupped by the shovel-shaped spathe often drop drifts of white pollen which can be wiped off with a cloth. Hunker may earn compensation through affiliate links in this story.
are often grown as houseplants, but most do well outdoors in U.S. Department of Agriculture plant hardiness zones 10b through 11. A Hambidge Fellow, Lynn studied English at Columbus State University. White Powder Fungus on a Peace Lily | Hunker With their large, distinctive white blooms, peace lilies come into prominence around the Easter holiday but remain lovely all year long.
Powdery mildew is a mild fungal infection that attacks everything from grass … are often grown as houseplants, but most do well outdoors in U.S. Department of Agriculture plant hardiness zones 10b through 11.
Hunker may earn compensation through affiliate links in this story. While a peace lily is easy to care for, it's still at risk for problems like infestation by gnats or infection by powdery mildew.Powdery mildew is a mild fungal infection that attacks everything from grass and crops to houseplants.
The peace lily's foliage may fade, turn yellow or fall from the plant.
Let the foliage dry in a well-ventilated area.