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    Plant Diseases
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    Bacterial Leaf Spot

    Bacterial leaf spot and stem rot, caused by Pseudomonas and Xanthomonas bacteria, is a common flower and vegetable disease. Pseudomonas syringae causes a devastating leaf spot and blight...

    Botrytis (Gray Mold)

    The fungus that causes Botrytis (Gray Mold) is the Botrytis cinerea. It invades weak and damaged plant tissue. Flowers are very susceptible during bloom,...

    Pest & Disease Control

    Black Spots on Leaves Not surprisingly, the disease, black spot (Diplocarpon rosae) produces black spots on the leaves of infected...

    Pests of Perennials

    Pests build up most quickly when just one or two kinds of plants grow, so a bed of mixed perennials is less...

    Powdery Mildew

    There are many different powdery mildew fungi. The fungus spores overwinter on fruit trees. In spring, the fungus begins to grow, and...

    Prevention and Control

    Perennials are more likely to be disease-free than annuals or vegetables because perennial beds usually contain a mixture of plants, rather than...

    Synthetic Insecticides

    Acephate CHEMICAL NAME: O,S-dimethyl acetyl phosphoramidothioate POPULAR BRAND NAMES: