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The melon fruit decreases in size and displays necrotic spots on the rind as well. [citation needed] Overall, infection of the crop will produce small chlorotic spots on the leaves, stems, and/or cotyledons, which turn brown while enlarging in size. The necrotic lesions can cause death to the plant structure and plant as a whole.
Watermelon mosaic virus (WMV) also known as Marrow mosaic virus (Raychaudhuri and Varma, 1975; Varma, 1988), Melon mosaic virus (Iwaki et al., 1984; Komuro, 1962), and until recently Watermelon mosaic virus type 2 (WMV-2), [1] is a plant pathogenic virus [2] that causes viral infection (sometimes referred to as watermelon Mosaic disease) in many different plants.
Peach tree leaves displaying various stages of the shot hole disease: brown spots on the leaf with conidium holders in the middle (center) that eventually fall off, leaving BB-sized holes behind (left) Shot hole disease of apricot leaves. The fungal pathogen Wilsonomyces carpophilus affects members of the Prunus genera. Almond, apricot ...
The watermelon is an annual that has a prostrate or climbing habit. Stems are up to 3 metres (10 feet) long and new growth has yellow or brown hairs. Leaves are 60 to 200 millimetres (2 + 1 ⁄ 4 to 7 + 3 ⁄ 4 inches) long and 40 to 150 mm (1 + 1 ⁄ 2 to 6 in) wide. These usually have three lobes that are lobed or doubly lobed.
Squash mosaic virus (SqMV) is a mosaic virus disease common in squash plants and other plants, including melons, of the family Cucurbitaceae. [1] It occurs worldwide. [1] It is transmitted primarily by beetles, including the leaf beetle (Acalymma trivittata), spotted cucumber beetle (Diabrotica undecimpunctata), [2] [3] and 28-spotted ladybird beetle (Henosepilachna vigintioctopunctata), [1 ...
The leaves begin to turn brown at the margins and necrosis progresses towards the base of the leaf. [2] Cankers, which may or may not have black spots, may appear in the epidermal cortical tissue and on the stems of infected plants. Black spots, if visible, are pycnidia and/or perithecia. Black rot is a common symptom on the fruit of gummy stem ...
Didymella bryoniae, syn. Mycosphaerella melonis, is an ascomycete fungal plant pathogen that causes gummy stem blight on the family Cucurbitaceae (the family of gourds and melons), which includes cantaloupe, cucumber, muskmelon and watermelon plants.
Citrullus is a genus of seven species of desert vines, among which Citrullus lanatus (the watermelon) is an important crop. Taxonomy. Molecular data, ...