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X. fragariae is often spread by infected transplants or systemically infected overwintered plants and dead leaves. [3] It can also be spread plant to plant through water droplets from rain or irrigation. [3] Once X. fragariae lands on a new host, it will enter into the strawberry plant through its open stomata. [8]
The younger plant leaves turn blue-green, and older leaves turn red or yellow. The plant will wilt and collapse. In some cases, not frequently, the plant will merely wilt and die before visible symptoms are able to develop above the ground. The plant may die before fruiting, but if there is fruit produced it will likely be small, deformed, or dry.
The host of Diplocarpon earliana is the strawberry plant. The disease mainly infects strawberry leaves at any stage of its life cycle, but may infect all parts of the strawberry plant, including the petioles, fruits, and stems. The disease is characterized by numerous small, purplish to brownish lesions (from 1/16 to 3/16 of an inch in diameter ...
Yellow, brown, curled, or crispy leaves. As plants dry out, their leaves shift in color from green to yellow and brown, and they may feel brittle to the touch. Severely parched leaves will often ...
This disease affects strawberry plant foliage causing purple spots ⅛ to ¼ inches across on the upper side of the leaves. [3] At first, the whole spot is purple but as the disease matures the center of the leaf spots on older leaves become tan or gray, then almost white. Lesions on younger leaves remain light brown. [4]
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Foliar nematodes are an important plant pathogen to agricultural crops and ornamental plants in the United States, Canada, and Europe. [1] Aphelenchoides fragariae nematodes are found in over 200 plant host species, [2] including crop species strawberry and alfalfa, and ornamental species Begonia, Chrysanthemum, Dahlia, Ficus, Hibiscus, Hosta, Viola, ferns, and Zinnia. [1]
Colletotrichum fragariae is a fungal plant pathogen infecting strawberries. It is not a well known fungus, and there are many similar fungi that are related to it. It is part of the Colletotrichum genus. It is a pathogen that occurs in strawberries. It leads to the disease known as anthracnose. This is typically at the crown of the strawberry ...