Petunia Disease Information

 

Home   RECENT DISEASE PROBLEMS ON PETUNIAS  
Our Family   In recent years, some petunias were turning brown and dying out in blotches throughout the flower bed.  They eventually destroyed the entire flower bed.  The Maryland Cooperative Extension determined the cause of this problem to be Phytophthora Parasitica blight.  It thrives in hot, wet weather.  
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    The following is a list of plants that are susceptible to Phytophthora Parasitica:  
    Pansies, Vinca, Petunias, Tomato, Tobacco & Pepper  
       
    Once you have determined that you have Phytophthora Parasitica blight in your landscape, it will persist in the soil and come back the next year.  
     
       
    The following is a list of fungicides for control of Phytophthora Parasitica:  
    Subdue Maxx, Alliette, Terrozole, Alude, Heritage, Compass  
       
    Once you have had Phytophthora Parasitica in your flower beds, you should rotate plants that are not susceptible to the disease.  
     
    The following is a list of plants that are not susceptible to Phytophthora Parasitica:  
    Impatiens, Begonias, Chrysanthemum, Coreopsis, Dianthus, Geraniums, Phlox, Portulaca, Rudbeckia, Verbena & Zinnia  
     
       
    Please note that Phytophthora Parasitica is only one possible disease that could be occurring in your flower beds.  
    Download the PDF here.  
       

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14812 Burntwoods Road   Glenwood, Md  21738
410-442-2299  *  301-854-6688  *  fax 410-442-1874