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Copper pesticide is applied as a contact protective foliar spray, so it remains deposited on leaf surfaces. A small concentration of copper ions may be taken up by plants as essential nutrients. Copper foliar sprays are also applied to correct plant copper deficiency. [8] Excess absorbed copper ions can kill sensitive cells in copper sensitive ...
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 ]
Traditional fungicides are simple inorganic compounds like sulfur, [5] and copper salts. While cheap, they must be applied repeatedly and are relatively ineffective. [ 2 ] Other active ingredients in fungicides include neem oil , rosemary oil, jojoba oil , the bacterium Bacillus subtilis , and the beneficial fungus Ulocladium oudemansii .
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 ...
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]
As a result, fungicides are used on 85–90% of all pecan acreage in southeastern states annually. Fenbuconazole, propiconazole, and TPTH are the primary fungicides used in the southeast for scab control. [132] In the southwest however fungicides are rarely used because the dry growing conditions are not conducive to growth of pecan scab.
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