Diseases-C103

Author(s) Karen Delahaut, Walt Stevenson.  Bacterial spot and speck are found wherever tomatoes or peppers are grown. On occasion, these diseases ...

Author(s) Karen Delahaut, Walt Stevenson. Fusarium and Verticillium wilts once routinely devastated tomato crops. However, the availability of res...

Author(s) Karen Delahaut, Walt Stevenson. Environmental factors can affect the look—and sometimes the flavor—of developing tomato fruits. Because ...

Author(s) Karen Delahaut, Walt Stevenson. Angular leaf spot is a bacterial disease that can be economically damaging to cucumbers, honeydew melon,...

Author(s) Karen Delahaut, Walt Stevenson. Phytophthora blight is a fungal disease capable of completely destroying zucchini, pumpkin, summer squas...

Author(s) Amanda Gevens, Jaime Wilbur. Late blight can result in complete destruction of tomato crops if left unmanaged. Learn about the symptoms...

Author(s) Karen Delahaut, Walt Stevenson. Both early blight and Septoria leaf spot are potentially serious diseases that affect the leaves, stems,...

Author(s) Amanda Gevens, Jaime Wilbur. Late blight affects a variety of plants in the Solanaceae family but is best known for its destruction of ...

Author(s) Karen Delahaut, Walt Stevenson.  Scab, also called gummosis, is one of the most important diseases affecting vine crops. In cool moist e...

Author(s) Karen Delahaut, Walt Stevenson. Powdery mildew is a foliar disease that occurs late in the season on cucumbers, gourds, muskmelons, pump...

Author(s) Karen Delahaut, Walt Stevenson. Bacterial wilt, caused by Erwinia tracheiphila, is a destructive vascular disorder spread by cucumber be...

Author(s) Karen Delahaut, Walt Stevenson. Anthracnose is a destructive fungal disease of the foliage, stems, and fruit of cucumbers, gourds, muskm...

Author(s) Karen Delahaut, Walt Stevenson. Even though symptoms may not appear until after harvest, many of the disease-causing organisms that caus...

Author(s) Karen Delahaut, Walt Stevenson. Two distinctly separate diseases commonly known as scab can infect potatoes, significantly reducing tube...

Author(s) Karen Delahaut, Walt Stevenson. Three types of botrytis diseases affect onion crops. Botrytis leaf blight is a destructive disease cause...

Author(s) Karen Delahaut, Walt Stevenson. Bacterial decay, known as soft rot, is one of the most widespread and destructive storage diseases of on...

Author(s) Karen Delahaut, Walt Stevenson. Onion smut can be a serious disease of onions, leeks, and shallots. The disease is caused by the fungi U...

Author(s) Karen Delahaut, Walt Stevenson. Purple blotch causes onion leaves to become blighted and die prematurely. The result is reduced yields f...

Author(s) Karen Delahaut, Walt Stevenson. This disease, caused by the common soil fungus Fusarium oxysporum f. sp. cepae, can be found wherever on...

Author(s) Karen Delahaut, Walt Stevenson. Downy mildew is a destructive disease that can reduce yield and bulb quality of onions, garlic, leeks, s...

Author(s) D. J. Hagedorn. This guide provides essential scientific information and meaningful visual guidance regarding the most common diseases ...

Author(s) Amanda Gevens, Michelle Marks. Cucurbit downy mildew is a destructive disease of all plants in the gourd family, including cucumber, wa...

Author(s) Karen Delahaut, Walt Stevenson. Common smut is caused by the fungus Ustilago maydis and is the most widespread disease of sweet corn, oc...

Author(s) Karen Delahaut, Walt Stevenson. Clubroot is an old and serious disease of cole crops, including Brussels sprouts, cabbage, Chinese cabba...