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Dibotryon morbosum or Apiosporina morbosa is a plant pathogen, which is the causal agent of black knot. [1] [2] It affects members of the Prunus genus such as; cherry, plum, apricot, and chokecherry trees in North America. The disease produces rough, black growths that encircle and kill the infested parts, and provide habitat for insects.
A. morbosa Apiosporina is a genus of fungi in the family Venturiaceae . [ 1 ] Seeds of the Chinese elm , Trident maple and Japanese black pine can be infected with Apiosporina collinsii to produce dwarf forms used to make bonsai trees.
The many plant-pathogenic ascomycetes include apple scab, rice blast, the ergot fungi, black knot, and the powdery mildews. The members of the genus Cordyceps are entomopathogenic fungi, meaning that they parasitise and kill insects. Other entomopathogenic ascomycetes have been used successfully in biological pest control, such as Beauveria.
Scotts was founded in 1868 by Orlando M. Scott as a premium seed company for the U.S. agricultural industry. In the early 1900s, the company began a lawn grass seed business for homeowners, and in 1924, became the first company to ship grass seed products directly to stores. Prior to 1924, Scotts products were only available through the mail. [5]
Grass Valley Wilderness is a wilderness area in San Bernardino County, California, near Ridgecrest. It mainly consists of low-lying hills and flat desert covered by vegetation typical of the Mohave Desert, like creosote bush, desert scrub, and isolated stands of Joshua trees. Fauna consists of the desert tortoise and the Mohave ground squirrel.
Knotgrass or knot grass is the common name for several plants and a moth and may refer to: Paspalum distichum, a species of grass; Polygonum, a genus of plants in the buckwheat family, more often known as knot weed; Acronicta rumicis, a moth of the family Noctuidae
Root-knot nematodes are plant-parasitic nematodes from the genus Meloidogyne. They exist in soil in areas with hot climates or short winters. About 2000 species of plants worldwide are susceptible to infection by root-knot nematodes and they cause approximately 5% of global crop loss . [ 1 ]
In the Northern Hemisphere, they are colloquially known as forget-me-nots or scorpion grasses. [ 5 ] Myosotis alpestris is the official flower of Alaska [ 6 ] and Dalsland , Sweden. Plants of the genus are not to be confused with Chatham Islands ' forget-me-nots, which belong to the related genus Myosotidium .