Copper bactericide and its reasonable application skills

Copper bactericide is one of the important bactericides, with the characteristics of earliest development and application time, longest use time, maximum application area, best bactericidal effect, and maximum use.

Copper bactericide can not only prevent fungal diseases, but also prevent and treat bacterial diseases; it has both protective and preventive effects, and it has both therapeutic and eradicative effects; it can be used to heal wounds, bactericidal anti-inflammatory, and treatable. Some skin diseases; can also be used for preservation and preservation during fruit storage.

Because the copper bactericide has the characteristics of low toxicity, pollution-free and environmentally-friendly, it has become the first choice of excellent bactericide for the production of green foods and organic fruits. Copper bactericide sprayed on the crop adhesion, forming a layer of film, resistant to rain erosion, long duration, can prevent germ invasion for a longer time, so better control effect. With the use of copper bactericides, the disease is still difficult to produce drug resistance.

Copper bactericide has so many advantages that it will inevitably drive the development and utilization of such preparations. The currently-developed inorganic copper preparations include: basic copper sulphate (Bordeaux solution), cupric oxychloride (Wang copper), cuprous oxide (copper Master, backing), copper hydroxide (can be killed, Guan Jingqing, Feng Hu'an, Rui Pu 2000). Organic copper preparations include: Thiobacillus copper, Ammonia-lubricated copper (silver elimination disease, chlorpromazine, copper acetate), copper fatty acid, copper rosin (green copper), copper succinate, copper dibasic (jube Copper benzoate, BT), copper soap, copper amines, etc. The development and utilization of organic copper preparations has become a hot topic for fungicide production. At the same time, there have also been mixed formulations of various copper preparations and other fungicides, such as: morpholinium chloride, amafrost copper (treasured copper), methorium aluminum copper, methamphetamine copper zinc (anti-drying, anti-dry Ling), mixed amino acids copper zinc manganese magnesium, phytosanitary spirit, copper humate (843 rehabilitation agent) and so on.

However, the long-term continuous use of copper bactericide has a problem that cannot be ignored. It is easy to induce the proliferation of fleas and cause fleas. It has been observed in many years of production that the use of copper bactericides to prevent and treat keratoses, seedling stage anthracnose, and blight may cause early onset and multiple occurrence of cotton leafhoppers, resulting in cotton defoliation "stalk stalks"; legumes, pepper, Tomatoes, eggplants and other vegetables on the application of copper bactericides to prevent epidemic diseases, anthrax, bacterial wilt, etc., can easily cause a lot of spawning oviposition, value-added, resulting in leaves dry off.

There are three main reasons for copper-based fungicides to induce the proliferation of mites: First, the copper-based agent sterilization mechanism is that copper ions can quickly destroy pathogenic proteases and cause the death of bacteria, but it will not damage the plant cell structure, and it is safe for crops, but The crickets have no killing effect; Second, the copper ions supplement the trace elements of the crops, promote the growth of the crops, stimulate the bright color of the fruits and vegetables, improve the quality, grow green and shiny, and thus trap the inhabitants, feeding and breeding of the crickets. Stimulate a large number of otter spawning; Third, copper fungicide has no killing effect on tick pests, but it has a killing effect on its natural enemies, so that the loss of control of ticks caused by spasm occurred, causing serious damage.

In view of this, when applying copper bactericides to prevent and treat diseases, it is necessary to take into account the fact that it is easy to induce the proliferation of fleas. In the locust-prone areas or dry seasons, the copper bactericide should be used alternately with other bactericides. Repeated use of copper bactericide.

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