Powdery Mildew on Garden Phlox

Attracting butterflies using its aromatic blooms, the garden phlox (Phlox paniculata) is a herbaceous perennial that grows in U.S. Department of Agriculture hardiness zones 4 through 8. The garden phlox needs complete to partial sun in well-drained soil. This beautiful plant with colourful flowers is very vulnerable to the harmful fungus identified as powdery mildew.

Powdery Mildew

One of the oldest recognized plant diseases is a broad damaging force that will affect a wide variety of plant species. The first indication of a powdery mildew infestation is a white, powdery growth on leaves and the branches of the garden phlox. The leaves will start brown before dropping-off prematurely or turning yellow. In a few instances, the shoots and leaves might start to twist. If left untreated, powdery mildew is extremely contagious, spreading to flowers, bushes and crops and can seriously harm the plant.

Organic Therapy

A normal fungicide remedy from the powdery mildew that is damaging is skimmilk. Calcium and the proteins in skimmilk help remove the fungus. To start, combine 9 parts water with 1 part-skim milk and pour the concoction in a clear garden sprayer or spray bottle. The powdery mildew that is natural therapy once every-other week throughout the day. The baking-soda (sodium bicarbonate) generally employed for recipes, cleansing and eliminating odors can also remove powdery mildew out of your garden phlox. Dissolve 1 teaspoon of baking soda and transfer the mixture to backyard spray or a spray bottle. Liberally coat the top and underside of the leaves together with the branches once a day every three times using the mixture.

Chemical Therapy

Copper fungicide or sulfur will assist handle mildew on crops including garden phlox. Before managing the plant together with the fungicide, check it on an inconspicuous location of the garden phlox and wait 2-4 hrs. If, following the time that is allotted, burning or no discoloration does occur, treat the plant as instructed on the label. For best results, use the fungicide on a calm day when temperatures WOn’t achieve above or 90 levels. Most fungicides need another treatment 7 to week or two when you utilize the original remedy.


The greatest protection is prevention that is proper. Provide adequate spacing between crops to permit air blood supply. Air circulating between the backyard phlox assists helps maintain the plant’s foliage dry and minimizes the progress of the fungus. Furthermore, keep from wetting the plant’s leaves and frequently eliminate decaying or lifeless branches and sticks from underneath the plant. Decaying issue is a foods resource for powdery mildew fungus.

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