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Most commonly Cephaleuros virescens is identified by the leaf spots it causes. Theses leaf spots are an orange-brown rust in color and usually occur entirely on the upper leaf surface, although leaf spots on the undersides of infected leaves have been reported. The spots are fuzzy in texture and approximately 2 cm (0.8 in) in diameter. [2]
Leaves of the plant can be used as salad, [2] to prepare a vegetable broth or to be cooked like spinach. They contain oxalic acid which can be hazardous if consumed in large quantities. [8] The dried seeds can be ground to make flour. In Turkey, Romania and Greece the leaves are sometimes used as an alternative to other plants in the making of ...
An example is Xanthomanos vesicatoria, which causes bacterial spot of tomato and pepper, that is now resistant to streptomycin. Apart from chemicals, alternative management methods include using bacteriophages, bacteriocins, and heat therapy. [17] Diversity in plant species has also been found to reduce the prevalence of leaf spot disease.
[4] [6] On onion it causes the disease known as Phytophthora neck and bulb rot. Different stages of onion may be affected. Initially, tips of newly infected plants start to yellow and dry followed by softening of the "neck" of the plants that eventually fall over. Infected leaves may show grey lesions. Roots may become necrotic in late disease. [7]
Some of these fungal species target specific plants, while others have been known to target plant families. [4] One commercially relevant plant genus that can be affected by Alternaria Leaf Spot is Brassica , as the cosmetic issues caused by symptomatic lesions can lead to rejection of crops by distributors and buyers. [ 5 ]
Virescence is the abnormal development of green pigmentation in plant parts that are not normally green, like shoots or flowers (in which case it is known as floral virescence). [1] Virescence is closely associated with phyllody (the abnormal development of flower parts into leaves ) and witch's broom (the abnormal growth of a dense mass of ...
What it is: Bakuchiol is a natural compound derived from the leaves and seeds of the babchi plant. “It has roots in Chinese medicine and is often called ‘nature’s retinol’ because it’s ...
Most bacteria associated with plants are saprotrophic and do no harm to the plant itself. However, a small number, around 100 known species, cause disease, especially in subtropical and tropical regions of the world. [15] [page needed] Most plant pathogenic bacteria are bacilli. Erwinia uses cell wall–degrading enzymes to cause soft rot.