Test PB Collection: FTE

Late blight of potato was responsible for the Irish potato famine of the late 1840s. Late blight is caused by the oomycete Phytophthora infestans. Oomycetes are fungus-like organisms also called water molds, but they are not true fungi. CategoryFungiSigns/SymptomsLesions appear as small dark green water…

 Fungal disease that affects the blossoms, fruit, leaves, and shoots of peaches, ornamental flowering peaches, and nectarines. One of the most common disease problems for backyard gardeners growing these trees. When severe, the disease can reduce fruit production substantially. The loss of leaves and…

 Powdery mildew is a common disease on many types of plants and is prevalent in many areas of California. Infection occurs when fungus contacts a suitable host and environmental conditions are favorable. Infections spread as spores produced in these white patches move by wind and splashing rain to other…

 Fungal disease named for the dry to gelatinous, orange, reddish, or yellowish fruiting bodies and spore masses that many species form on infected tissue. Rusts infect many hosts, including birch, cedar, cottonwood, cypress, fuchsia, hawthorn, juniper, pear, pine, poplar, rhododendron, and rose…

Grows on plants and other surfaces covered with honeydew, a sticky substance created by some certain insects. Doesn’t infect plants, but the mold can indirectly do damage by coating leaves to the point that sunlight can’t reach the leaf surface. Without adequate sunlight, the plant cannot effectively…