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Tulip breaking virus. Tulip breaking virus[a] is one of five plant viruses of the family Potyviridae that cause color-breaking of tulip flowers. These viruses infect plants in only two genera of the family Liliaceae: tulips (Tulipa) and lilies (Lilium). Also known as the tulip break virus, lily streak virus, lily mosaic virus, or simply TBV ...
Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight. A key characteristic of this pathogen is its ability to produce black resting structures known as sclerotia ...
Incubation period (also known as the latent period or latency period) is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation, and when symptoms and signs are first apparent. [1] In a typical infectious disease, the incubation period signifies the period taken by the multiplying organism to reach a threshold ...
Aster yellows is a chronic, systemic plant disease caused by several bacteria called phytoplasma. [1] The aster yellows phytoplasma (AYP) affects 300 species in 38 families of broad-leaf herbaceous plants, primarily in the aster family, as well as important cereal crops such as wheat and barley. Symptoms are variable and can include phyllody ...
As the spots enlarge the centre becomes grey and may fall out resulting in a shot-hole appearance. Defoliation may occur but is often not serious. [3] Grey mould (class Leotiomycetes: family Sclerotiniceae) Botrytis cinerea – On roses grey mould is primarily a disease of the flowers and buds, leaves are infrequently attacked. Infected buds ...
C. majalis. Binomial name. Convallaria majalis. L. 19th-century illustration. Lily of the valley (Convallaria majalis / ˌkɒnvəˈlɛəriə məˈdʒeɪlɪs /), [2] sometimes written lily-of-the-valley, [3] is a woodland flowering plant with sweetly scented, pendent, bell-shaped white flowers borne in sprays in spring.
Leptospirosis is a blood infection caused by the bacteria Leptospira [8] that can infect humans, dogs, rodents and many other wild and domesticated animals. [8] Signs and symptoms can range from none to mild (headaches, muscle pains, and fevers) to severe (bleeding in the lungs or meningitis). [5] Weil's disease (/ ˈvaɪlz / VILES), [12] the ...
Passiflora incarnata. Passiflora incarnata, commonly known as maypop, purple passionflower, true passionflower, wild apricot, and wild passion vine, is a fast-growing perennial vine with climbing or trailing stems. A member of the passionflower genus Passiflora, the maypop has large, intricate flowers with prominent styles and stamens.