A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses (Trichobasis Rubigo-vera), now usually believed to be a form or condition of the corn mildew (Puccinia graminis)
1 a: the reddish brittle coating formed on iron esp when chemically attacked by moist air and composed essentially of hydrated ferric oxide b: a comparable coating produced on a metal other than iron by corrosion c: something resembling rust: accretion 2: corrosive or injurious influence or effect 3: any of numerous destructive diseases of plants produced by fungi (order Uredinales) and characterized by usu reddish brown pustular lesions; also: a fungus causing this
become destroyed by water, air, or an etching chemical such as an acid; "The metal corroded"; "The pipes rusted"
preventive paint or primer The first coat of paint applied directly to iron or steel structures to slow down or prevent rust
cause to deteriorate due to the action of water, air, or an acid; "The acid corroded the metal"; "The steady dripping of water rusted the metal stopper in the sink"
Rust is sometimes used to describe things that are reddish-brown in colour. turquoise woodwork with accent colours of rust and ochre. to become covered with rust, or to make something become covered in rust
a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
any of various fungi causing rust disease in plants the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water a reddish-brown discoloration of leaves and stems caused by a rust fungus a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture become coated with oxide of the color of rust
To cause to contract rust; to corrode with rust; to affect with rust of any kind
In the United States and some other countries, the Rust Belt is a region which used to have a lot of manufacturing industry, but whose economy is now in difficulty. in the rust belt of the mid-west. the Rust Belt an area in the northern US, including parts of the states of Illinois, Michigan, Indiana, Ohio, and Wisconsin, where many large, older industries, especially the steel and car industries, have become less successful and many factories have closed down
Any of several diseases of pine trees caused by certain fungi of the genus Cronartium, resulting in conspicuous blistering and often dieback of affected areas. Any of several diseases of pines, caused by rust fungi (see fungus) of the genus Cronartium. Blister rust affects sapwood (see wood) and inner bark and produces external blisters from which additional spores of the fungus are released and resin oozes, forming characteristic hardened masses on the trunk. It affects pines of all ages and sizes, retarding growth and weakening stems as it spreads along the trunk, sometimes killing the tree; young trees are killed more quickly than older ones. Measures taken to fight blister rust include growing resistant varieties, destroying nearby alternative host plants, observing strict sanitation measures, and spraying with fungicides
fungus causing white pine blister rust and having a complex life cycle requiring a plant of genus Ribes as alternate host any of several diseases of pines caused by rust fungi of the genus Cronartium and marked by destructive invasion of bark and sapwood and producing blisters externally
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