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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 ...
The result is inactivation of bacteria or viruses. [15] Copper complexes form radicals that inactivate viruses. [16] [17] Copper may disrupt enzyme structures, and functions by binding to sulfur- or carboxylate-containing groups and amino groups of proteins. [18] Copper may interfere with other essential elements, such as zinc and iron.
Copper sulfate mixed with lime (Bordeaux mixture) is used as a fungicide and antihelminthic. [14] Copper sulfate is used chiefly to destroy green algae that grow in reservoirs, stock ponds, swimming pools, and fish tanks. Copper 8-hydroxyquinoline is sometimes included in paint to prevent mildew. [15]
Copper ion systems use an electric current across .500 gm bars (solid copper, or a mixture of copper and .100 gm or silver) to free copper ions into the flow of pool water to kill organisms such as algae in the water and provide a "residual" in the water.
Barley straw, in England, is placed in mesh bags and floated in fish ponds or water gardens to help reduce algal growth without harming pond plants and animals. Barley straw has not been approved by the United States Environmental Protection Agency (EPA) for use as a pesticide and its effectiveness as an algaecide in ponds has produced mixed results during university testing in the United ...
Copper alloy surfaces have intrinsic properties to destroy a wide range of microorganisms. The US Environmental Protection Agency (EPA), which oversees the regulation of antimicrobial agents and materials in that country, found that copper alloys kill more than 99.9% of disease-causing bacteria within just two hours when cleaned regularly. [31]
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