Powdery Mildew Treatment

Treatment For Powdery Mildew On Roses

This page is about powdery mildew treatment for the fungal disease Powdery Mildew Apaerotheca pannosa var. rosae

This plant disease is almost endemic everywhere roses are grown, because for powdery mildew to occur it only requeres cool, humid nights and warm to hot days.

I know for a fact that rose gardeners everywhere are trying to find ways to control powdery mildew on their roses, that's why I decided to write this page help you treat your rose plants and any other plant in your garden.

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Powdery Mildew on Roses

This fungal disease grows on top of leaves and flower buds on new tender growth. Older foilage is much more resistant and is rarely troubled by mildew.

The best treatment for powdery mildew is a mix of horticulture oil and baking soda, that you should spray your roses with.

But it should be applied immediately after you prune your roses, and then every 2-3 weeks thereafter to prevent new infections.

Another powdery mildew control is sulfur, because it kills active infections.

But this treatment should only be used when the temperature remain below 85 degrees Fahrenheit for several hours after spraying.

Otherwise it can burn the foilage of your rose plants.

The best way to control, or prevent rather, powdery mildew from happening in the first place, is to keep your roses well-watered.

Rose gardeners who let their roses dry out between waterings are much more likely to have white powdery mildew on their roses.

During the winter, when the rose bushes are dormant I recommend that you spray the roses with a Dormant Oil Spray .

It will kill any over-wintering fungus spores that would most likely infect your roses new growth next spring.

Doing all these things with roses are very unlikely to get infected by the ugly white powdery mildew fungus.

annelie



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