Bordeaux fluid is a traditional protective fungicide, widely used in the prevention and treatment of fruit tree diseases. However, farmers' friends often suffer from phytotoxicity due to improper use. In order to reduce the harm, special attention has been paid to the preparation and use of Bordeaux mixture.

Role and use of objects. Bordeaux liquefaction should be used before the invading bacteria. After the onset of illness, the use of the Bordeaux liquefaction will be significantly reduced. It will only prevent the re-infection of pathogens. The use of a wide range of fungus caused by downy mildew, soft rot, anthrax, seedling damping-off disease, etc., have a good control effect, but the control effect of powdery mildew is poor.

Use high-quality raw materials. The Bordeaux fluid of good quality is sky blue, and the main component is basic copper sulfate. The quality of Bordeaux fluids has a great relationship with the quality of raw materials. Commercially available copper sulphate powders generally meet the requirements. Lime must use freshly-burned white lumps of ash, and slaked lime with a lot of impurities or weathering should not be used.

Preparation points. Metal containers, especially ironware, cannot be used when preparing Bordeaux mixtures. The water temperature during the preparation should not exceed the temperature. Do not add copper sulfate and quicklime to a container and add water at the same time.

Bordeaux liquids are very well suspended and have a certain degree of stability. However, if they are left for a long time, copper sulphate and calcium hydroxide will act to form calcium sulphate and copper hydroxide precipitates, which will affect the effect. Therefore, it must be accompanied by Use, can not exist for long.

According to the species, choose the proportion of preparation. Bordeaux mixture is made of copper sulfate, quicklime and water. Some fruit trees are particularly sensitive to copper sulfate or lime and are prone to phytotoxicity. Lime-sensitive fruit trees have grapes, etc. Lime half volume should be used. Copper-sensitive pears, persimmons, etc., should be used lime-type or multi-type. Peaches, apricots, plums, plums, and other stone fruit trees are particularly sensitive to copper ions and are prone to phytotoxicity. Bordeaux fluid cannot be used during the growing season. Most fruit trees such as pears are sensitive to copper ions and are prone to phytotoxicity, such as fruit rust. Therefore, spraying Bordeaux mixture should be avoided during young fruit period, or zinc-copper Bordeaux mixture should be used instead.

Not suitable for multi-drug use. Bordeaux's solution is alkaline and should not be mixed with alkali-decomposable chemicals, nor can it be mixed with most organic pesticides to avoid failure. Bordeaux mixture cannot be used together with lime sulfur and mineral oil emulsions. Bordeaux multi-fluid can be sprayed 15 days after spraying lime sulfur or 30 days after spraying mineral oil emulsion.

Choose a suitable weather spray. When cloudy weather, high humidity, or raining after spraying, fruit trees are prone to injury. Therefore, it should be avoided to spray Bordeaux mixture on cloudy days and high temperature and high humidity.

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Hongxing Factory
Dongying Hongxing is located at Dongying City, Shandong Province China since 1995.
We have 30 categories of products, including Covid-19 products, frock, protection shoes, safety belt, Special gloves.

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