Plant FungusPlant fungus in your rose garden and how to get rid of them now. The most common fungi in the rose garden are- powdery mildew, rust and black spots. Powdery MildewEarly signs of Powdery Mildew, a fungus, are crinkles on the edges of your roses leaves. Next, small patches of mold appear on stems, leaves, and thorns and if not stopped on much of the bush.The most common cause of powdery mildew is moisture on the rose bush leaves often caused by condensation (water droplets) on the plant. Weather patterns and powdery mildew- Warm days and cold nights cause nighttime condensation and are a common weather pattern that helps powdery mildew establish itself in your rose garden. Lack of air circulation caused by rose bushes planted too close together and roses starved for water are also prime targets for powdery mildew. Disfiguring purple blotches appear on the rose bush canes to sepals. RustRust starts as reddish orange spots that look like warts on the bottom of rose leaves. Next step, rust moves to the top of the leaves and will eventually cause your rose bush to lose its infected leaves.Water/moisture on your roses for at least four hours causes rust. Late spring rains, cold nights, heavy fogs and morning dew provide the moisture. If your roses are unable to dry out during the day, rust has a good chance of moving in to your garden. Black SpotsBlack spots show-up first as black and then yellow-fringed rings on your leave. Left unchecked, this fungus will turn entire leaves yellow.SolutionsRemove all effected leaves. Some mildew is to be expected.Long term solutions are good garden circulation, picking the right disease resistant roses for your area and keeping your roses healthy with the right amount of sun, water and fertile soil. Make sure you plant your roses far enough apart for each other so as to allow the air to circulate around them. Water in the morning so your roses have time to dry off well before nightfall and cooler temperatures. Plant roses in the right location- where they get morning sun and about 6 hours of sun a day will also help keep your roses healthy and looking wonderful.
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