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  • July/August 2013 Web Special 2

    Keep powdery mildew at bay by choosing resistant varieties of susceptible plants.

    July/August 2013 Web Special 2

    Powdery Mildew Resistant Varieties

    As summer progresses and plants reach maturity, a fungal disease known as powdery mildew often makes its appearance in the garden. Planting resistant varieties is the best approach to combating powdery mildew.  Keep in mind that resistance does not mean that the plant will never become a host to the disease; it may be present but does not tend to damage the plant as much as it would damage a susceptible plant. Here are some resistant varieties of plants that can be particularly affected by powdery mildew.

    --Scott Aker


    TREES

    Flowering dogwood (Cornus florida) ‘Cherokee Brave’ and ‘Sweetwater Red’

    Mexican dogwood  (C. florida var. urbiniana)

    Kousa dogwood  (C. kousa)

    Hybrid dogwood (C. ×rutgersensis)
       AURORA™
       CELESTIAL™
       CONSTELLATION™
       STARLIGHT™
       STELLAR™
       STELLAR PINK™
       VENUS™

      Hybrid oak (Quercus)
       BEACON™
       KINDRED SPIRIT™
       REGAL PRINCE™

    Swamp white oak (Q. bicolor) AMERICAN DREAM™  

    Crapemyrtle (Lagerstroemia)
      ‘Basham’s Party Pink’
      ‘Fantasy’
      ‘Natchez’
      ‘Sarah’s Favorite’
      ‘Tuscarora’
      ‘Tuskegee’

    Sycamore (Platanus) ‘Columbia’ and ‘Liberty’

    SHRUBS

    Lilac (Syringa) 
    ‘Betsy Ross’
    ‘Declaration’
    ‘Miss Kim’
    ‘Old Glory’
    BLOOMERANG™

    Deciduous azaleas (Rhododendron)
    ‘Fragrant Star’
    ‘Garden Party’
    ‘Late Lady’
    ‘Millennium’
    ‘Parade’
    ‘Popsicle’

    PERENNIALS

    Garden phlox (Phlox paniculata)
    ‘David’
    ‘Delta Snow’
    ‘Laura’
    ‘Natascha’
    ‘Robert Poore’
    ‘Speed Limit 45’

    Bee Balm (Monarda) 
     ‘Blue Stocking’
     ‘Petite Delight’
     ‘Stone’s Throw Pink’

    Peony (Paeonia)  
       Itoh hybrids
      
    VEGETABLES

    Cucumber ‘Diva’

    Yellow summer squash
    ‘Success’
    ‘Sunglo’
    ‘Sunray’

    Zucchini  ‘Ambassador’ and ‘Wildcat’

    Pumpkin ‘18 Karat Gold’ and ‘Gladiator’