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Copper pesticides are copper compounds used as bactericides, algaecides, or fungicides. They can kill bacteria, oomycetes and algae, and prevent fungal spores from germinating. Common forms of fixed copper fungicides include copper sulfate, copper sulfate pentahydrate, copper hydroxide, copper oxychloride sulfate, cuprous oxide, and copper ...
Burgundy mixture, named after the French district where it was first used to treat grapes and vines, [1] is a mixture of copper sulfate and sodium carbonate. This mixture, which can have an overall copper concentration within the range of 1% through 20%, [2] is used as a fungicidal spray for trees and small fruits. [3]
Bordeaux mixture (also called Bordo Mix) is a mixture of copper(II) sulphate (CuSO 4) and quicklime (Ca O) used as a fungicide. It is used in vineyards, fruit-farms, vegetable-farms and gardens to prevent infestations of downy mildew, powdery mildew and other fungi. It is sprayed on plants as a preventive treatment; its mode of action is ...
Copper(II) sulfate is an inorganic compound with the chemical formula Cu SO 4.It forms hydrates CuSO 4 ·nH 2 O, where n can range from 1 to 7. The pentahydrate (n = 5), a bright blue crystal, is the most commonly encountered hydrate of copper(II) sulfate, [10] while its anhydrous form is white. [11]
Copper(II) sulfate remains "the most effective algicidal treatment". [3] A related traditional use is the Bordeaux mixture, used to control fungus on fruits. [4] Hydrated lime, as a biocide, is allowed in the production of organic foods. [5]
These predictions are based mainly on mean daily temperature and rainfall, and have been used to create a simple program that indicates when spraying is necessary. The most commonly used means of control of Oidium mangiferae is the use of sulfur and copper fungicides, particularly copper sulfate and elemental sulfur. [12]
Herbicides such as copper sulfate that are applied to water to kill plants are toxic to fish and other water animals at concentrations similar to those used to kill the plants. Repeated exposure to sublethal doses of some pesticides can cause physiological and behavioral changes that reduce fish populations, such as abandonment of nests and ...
Chemical treatments with fixed copper such as Bordeaux, copper hydroxide, and cupric sulfate are used to stop the spread of P. syringae by killing the bacteria while it is in the epiphyte stage on leaves, or woody parts of trees - however resistant P. syringae strains do exist. [28]