black rust


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Related to black rust: white rust, black iron oxide

black rust

n
(Plant Pathology) a stage in any of several diseases of cereals and grasses caused by rust fungi in which black masses of spores appear on the stems or leaves
References in periodicals archive ?
Being reinforced with yellow and black rust corrosion and loose porous in the simulation of carbide pore solution, the main ingredients are FeOOH, [Fe.sub.3][O.sub.4], and [Fe.sub.2][O.sub.3].
Three kinds of Rust or Kungi disease were witnessed on wheat crop last year, including Brown Rust, yellow Rust, and Black Rust as temperature ranging from 20-25 Celsius is suitable for Brown Rust, 10-20 C for Yellow Rust and 20-35 C for Black Rust.
Leaf rusts also called as brown rust, stripe rust also called as yellow rust and stem rust also called as black rust, smuts, bunts and aphids as biotic stresses (Hussain et al.,2006) and terminal heat, drought, salinity, winds, hailstorms, fogs and excessive cloudy weather during crop season are the salient a-biotic stresses (Hussain et al., 2011).
tritici also called as black rust and smuts, bunts and insects particularly aphids act as biotic stresses (Hussain et al., 2006) while, terminal heat, drought, salinity, winds, hailstorms, fogs and excessive cloudy weather during crop season are the salient abiotic stresses (Hussain et al., 2011).
Corroding the inside of the plant's stem, black rust or stem rust is currently being commonly caused by Ug99, a fungus named after its 1999 detection in Uganda.