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Johnson grass that is resistant to the common herbicide glyphosate has been found in Argentina and the United States. [2] [3] [4] It is considered to be one of the ten worst weeds in the world. [5] In the United States, Johnson grass is listed as either a noxious or quarantined weed in 19 states. [6]
Glyphosate-resistant Johnson grass (Sorghum halepense) has been found in Argentina as well as Arkansas, Louisiana, and Mississippi. [ 208 ] Monarch butterfly populations
Xanthorrhoea johnsonii (also known as Johnson's Grass Tree) is a large plant in the genus Xanthorrhoea found in eastern Australia. [1] The trunk can grow to 5 metres tall. Older foliage is very strong, hence one of the common names being "steel grass", and is commonly used in floral design where it can be bent and looped without breaking. [2]
Johnson's seagrass has pairs of linearly shaped petiolate leaves, each generally 2-5 cm long including the petiole. The leaves grow from the nodes of a horizontally creeping rhizome found at or just below the surface of the sediment and held down by unbranched roots. The distance between the nodes of the rhizomes rarely exceeds 3-5 cm, making ...
The grass is often confused with the similar looking Johnson grass (Sorghum halepense), although it is only distantly related. Tridens flavus is easily distinguished by its short, hairy ligule. Native to eastern North America, it is widespread throughout its range and is most often found in man-made habitats, such as hay meadows and lawns.
Ascochyta sorghi infects grain crops such as sorghum (Sorghum bicolor), Johnson grass (Sorghum halepense), Sudan grass (Sorghum sudanense), and barley (Hordeum vulgare). [1] It can also infect wild sorghum species. [2] Symptoms of rough leaf spot can appear on leaf blades, leaf sheaths, peduncles, stalks, and glumes of susceptible species. [2]
The US motorsport community is is mourning after NASCAR champion Jimmie Johnson’s in-laws and nephew were found shot dead in an apparent murder-suicide in Muskogee, Oklahoma.. Police suspect ...
Maize dwarf mosaic virus can be managed in several ways. One way is the removal of the local population of Johnson grass as this can harbor the disease. It is best if all producers (farmers) in the area participate in this practice or the disease can remain in sporadic plant populations and be spread in the ways described above (Lipps & Mills ...