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Copper ions release more readily under acidic conditions and copper pesticides, except copper sulfate pentahydrate, should not be used with acid forming products. [10] Copper fungicides can be highly effective if applied prophylactically and with complete coverage of all plant foliar surfaces, including the undersides of leaves where the ...
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 ...
This is a list of fungicides. These are chemical compounds which have been registered as agricultural fungicides . The names on the list are the ISO common name for the active ingredient which is formulated into the branded product sold to end-users. [ 1 ]
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]
Bordeaux mixture contains copper(II) sulfate, CuSO 4, and hydrated lime, Ca(OH) 2, while Burgundy mixture contains copper sulphate, CuSO 4, and sodium carbonate, Na 2 CO 3. [4] First used around 1885, [ 2 ] Burgundy mixture has since been replaced by synthetic organic compounds, or by compounds that contain copper in a non-reactive, chelated ...
For smallholder farmers, this can be cost-prohibitive. Copper-based fungicides, such as Bordeaux mixture, have proven to be effective and economical, and work best when applied at inoculum levels below 10%. [3] [12] Typically copper-based mixtures are used as preventative measures and systemic fungicides are used as curative measures. [8]
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In certain severe cases, fungicides can be implemented to help with control. [7] [12] Copper fungicides sprayed in early spring when leaves are budding and twice more throughout the season help reduce the disease. However, chemical control is not normally used because this disease is mostly cosmetic.
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