Brown Rust

Wheat leaf rust

Wheat leaf rust is a fungal disease that affects wheat, barley, rye stems, leaves and grains. In temperate zones it is destructive on winter wheat because the pathogen overwinters. Infections can lead up to 20% yield loss. The pathogen is a Puccinia rust fungus. It is the most prevalent of all the wheat rust diseases, occurring in most wheat-growing regions. It causes serious epidemics in North America, Mexico and South America and is a devastating seasonal disease in India. P. triticina is heteroecious, requiring two distinct hosts.

Rust

Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron(III) oxides (Fe2O3·nH2O) and iron(III) oxide-hydroxide (FeO(OH), Fe(OH)3), and is typically associated with the corrosion of refined iron.

Brown

Brown is a color. It can be thought as a darker, typically desaturated shade of orange, and can often be produced by combining red and yellow with another color, namely blue.

Rust (color)

Rust is a red color resembling iron oxide red. It is a commonly used color on cars and appears roughly the same color as photographic safelights when used over a standard tungsten light source.

brown

Noun

1. A colour like that of chocolate or coffee.
2. One of the colour balls used in snooker, with a value of 4 points.

Adjective

1. Having a brown color/colour.
2. Gloomy.

rust

Noun

1. The deteriorated state of iron or steel as a result of moisture and oxidation; it consists mostly of iron(III) oxide (ferric oxide) and iron(II) oxide (ferrous oxide).
2. A similar substance based on another metal.

Verb

1. To oxidize, especially of iron or steel.
2. To cause to oxidize.