Older leaves are less likely to be affected, but can become infected under conducive conditions for the disease. (03) 5629 2443 Encourage good circulation through selective pruning and/or proper placement of plant in the landscape to reduce chances of spore settling and humidity level, and allows for full sun. www.touchofclassplants.com.au, The Way to have Green Grass Through Winter. Eradicants can help manage an infection after it has started. The information given herein is for educational purposes only. Shell Pink has beautiful coral pink blooms. Powdery mildew spores can germinate and infect crape myrtle in the absence on free water on the plant tissue, as long as there is … Brentwood 2-year-old boy dies of fentanyl overdose, mother charged with murder, Decision time on Trump, Biden: Big turnout, few hiccups, Kapor Center polling station puts out West Oakland welcome. Mel shows us some exciting varieties in the Touch of Class Diamonds in the Dark Collection. Under favorable conditions, infection may occur as few as 3 to 5 days after the spore lands on the crape myrtle. Potassium bicarbonate is available to licensed applicators only. It is wise to choose cultivars of Lagerstroemia that have a resistance to powdery mildew. References to commercial products or trade names are made with the understanding that no discrimination is intended and no endorsement by Texas AgriLife Extension Service personnel is implied. Badly infected leaves may grow abnormally (curl and twist). The UC Cooperative Extension Master Gardener Help Desk is staffed 9 a.m. to noon Monday-Thursday, 925-646-6586, mgcontracosta@ucdavis.edu. Of the sulfur products, wettable sulfur formulated with a surfactant is the simplest and most effective for the home gardener. Crape myrtles with good to excellent resistance to powdery mildew include Tonto, Muskogee, Acoma, Souix, Tuskegee and many other. Severely infection may also cause premature defoliation. The flowers come in a variety of colors including pink, red, purple, and white. Remember these trees are drought tolerant and after establishment require little water. The best practice is to choose a resistant variety of crape myrtle and plant it in the sun. I have been told it is powdery mildew but I don’t know how to control it. Care should be observed when using any fungicide. But starting now, a thorough dowsing with a horticultural or plant based oil spray will help reduce a light to moderate case of this fungal disease. These varieties are highly resistant to powdery mildew and are very low maintenance, so they look fabulous for very little effort. Crape myrtle is a woody ornamental with deep green foliage and bright colored bloom for summer pleasure. These growth and spores give it the powdery-like appearance, hence the common disease name “Powdery Mildew”. At just 3-meters tall and 2.5-meters wide, they’re the perfect feature tree for both traditional and modern gardens, big and small. Additionally, crape myrtle should be planted in sunny locations allowing free air movement so wet foliage dries quickly. There are numerous fungicides, both natural and synthetic, that are available to control powdery mildew. The best management method is prevention. Natural fungicides such as Neem oil extract and Potassium bicarbonate has been shown to be effective when used correctly. It also has interestingly textured trunks to accent the landscape in the winter months. Crape myrtles need plenty of sun and air circulation to help fight this disease. Episode: 1 Think crepe myrtle. Purely Purple is smothered in vibrant purple flowers. The ascoma survives the winter on leaves or plant debris, and will produce spores in the spring to that can reinfect the crape myrtles. The University of California has additional information on managing powdery mildew on ornamentals and general care and pest management for crape myrtles at www.ipm.ucdavis.edu. It is essential to follow the directions on pesticide labels. Thinking beautiful trees in the garden? Many people fight powdery mildew by trimming back all affected branches, but this can reduce a floral display if done too late in the season. These varieties are highly resistant to powdery mildew and are very low maintenance, so they look fabulous for very little effort. GET BREAKING NEWS IN YOUR BROWSER. Sorry, your blog cannot share posts by email. This series of small crape myrtles is colorful and unique. Molly K. Weden is a Contra Costa Master Gardener. Often the leaves are stunted and distorted. Meet Mystic Magenta has striking black foliage and masses of magenta pink blooms. Infected shoots may dry up and shrivel. The University of California has additional information on managing powdery mildew on ornamentals and general care and pest management for crape myrtles … Powdery mildew grows best on young, actively growing plant tissues. Title: Diamonds in the Dark – Crepe Myrtles The Texas A&M University System, U.S. Department of Agriculture, and the County Commissioners Courts of Texas Cooperating. Biological fungicides are available commercially. Oils work best as eradicants but have some preventive activity. Powdery mildew spores are disseminated by wind. Use resistant varieties, provide the plants with full sun, and using good cultural practices, such as avoiding excess fertilization and removing affected leaves in the fall, will adequately manage powdery mildew in most situations. Except for the oils, these materials are primarily preventive. Presenter: Melissa King. Sulfur has been used to manage powdery mildew for centuries, but it is effective mainly as a preventive. With so many new colours in the range you really are spoilt with choice so why not choose a favourite or the whole series of Diamonds in the Dark Crepe Myrtle – they really will be a shining gem in your garden.

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