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Phytophthora fragariae is a fungus-like plant pathogen that causes red stele, otherwise known as Lanarkshire disease, in strawberries.Symptoms of red stele can include a red core in the roots, wilting of leaves, reduced flowering, stunting, and bitter fruit.
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]
Strawberry pallidosis Strawberry pallidosis (graft- and pollen-transmissible agent of unknown relationship) Thrips-transmitted Strawberry necrotic shock Tobacco streak virus, strawberry strain (TSV-SNS) Vectors unknown Strawberry leafroll Strawberry leafroll (graft-transmissible agent(s) of unknown relationship Strawberry feather-leaf
A wild and wet winter wreaked havoc on the fruit that is usually the star of the spring season.
Its presence in Ireland also lends it the name "Irish strawberry tree", or cain, or cane apple (from the Irish name for the tree, caithne [5]), or sometimes "Killarney strawberry tree". The strawberry tree is the national tree of Italy because of its green leaves, its white flowers and its red berries, colors that recall the Italian flag. [6]
Phomopsis obscurans is a common fungus found in strawberry plants, which causes the disease of leaf blight. Common symptoms caused by the pathogen begin as small circular reddish-purple spots and enlarge to form V-shaped lesions that follow the vasculature of the plant's leaves.
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, which is why it is often called crown rot. [1] [2] It is also known as the Anthracnose Crown rot. The fungus also infects leaves and is known as leaf spot, which is common among all Colletotrichum. This ...
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) with undefined borders on the upper surface of the leaf.