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This factsheet offers information on damping off in flower and vegetable seedlings, a result of fungi present in the growing medium.
This factsheet covers management of bacterial spot on ornamentals.
Black root rot impacts a range of woody and herbaceous ornamental plant species primarily in greenhouse ornamental plant production, but also in home and commercial landscapes and nurseries. This disease causes decay of the root system and leads to yellowing, wilting, and necrosis of foliage. It is widely distributed and has been described on approximately 30 plant families in many parts of the world. Some of the most frequently impacted ornamentals are pansy, viola, Calibrachoa, annual vinca (periwinkle), Salvia, petunia, Persian cyclamen, snapdragon, Begonia, Verbena, Phlox, and Gerbera daisy. In addition to ornamental plants, some vegetable and other agricultural crops are also susceptible to infection.
Identification and management of Phytophthora in annuals and herbaceous perennials in greenhouses and in the landscape is discussed in this disease fact sheet.
This factsheet provides general information about scorch or marginal burning on leaves of shade trees.