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Helminthosporium papulosum. Blister disease. Coniothecium chomatosporum. Blue mold rot. Penicillium spp. Penicillium expansum. Botrytis spur and blossom blight. Botrytis cinerea. Botryotinia fuckeliana [teleomorph]
The Williams' bon chrétien pear, commonly called the Williams pear, or the Bartlett pear in the United States and Canada, is a cultivar (cultivated variety) of the species Pyrus communis, commonly known as the European pear. The fruit has a bell shape, considered the traditional pear shape in the west, and its green skin turns yellow upon ...
Parentage: Coscia x Williams (Bartlett) made by Morettini. Tree is vigorous. Ripens 20 days before Bartlett. One of the best early pears. eating: 100–125 Carmen [63] [64] Italy: cross made 1980, selected 1989, introduced 2000: Pick 18 days before Bartlett. eating: Cascade [65] Oregon, US: 1975: A red-skinned pear. Parentage Bartlett Max Red x ...
Type strain. ATCC 15580; CFBP 1232; NCPPB 683. Fire blight, also written fireblight, is a contagious disease affecting apples, pears, and some other members of the family Rosaceae. It is a serious concern to apple and pear producers. Under optimal conditions, it can destroy an entire orchard in a single growing season.
Pyrus communis, the common pear, is a species of pear native to central and eastern Europe, and western Asia. [3] It is one of the most important fruits of temperate regions, being the species from which most orchard pear cultivars grown in Europe, North America, and Australia have been developed. Two other species of pear, the Nashi pear ...
Bitter pit is a disorder in apple fruits, now believed to be induced by calcium deficiency. It occurs less commonly in pears. The disease was probably first reported in Germany where it was known as Stippen. [1] It was also known as "Baldwin spot" and "blotchy cork" in North America. The name "bitter pit" was first used by Cobb in Australia in ...
Erysipelas (/ ˌ ɛ r ə ˈ s ɪ p ə l ə s /) is a relatively common bacterial infection of the superficial layer of the skin (upper dermis), extending to the superficial lymphatic vessels within the skin, characterized by a raised, well-defined, tender, bright red rash, typically on the face or legs, but which can occur anywhere on the skin.
Chondrostereum purpureum is a fungal plant pathogen which causes Silver leaf disease of trees . It attacks most species of the rose family Rosaceae, particularly the genus Prunus. The disease is progressive and often fatal. The common name is taken from the progressive silvering of leaves on affected branches.