When to hit copper sulfate on fruit trees?

In the north from late November to early to mid-December (the temperature is above 4), the fruit trees basically completely lose their leaves and enter the dormant period, at this time, all kinds of diseases and insects begin to overwinter, and they are resistant.

It will be weakened, and the stone sulfur mixture will be used when clearing the garden.

It can eradicate overwintering pests and diseases. However, when the temperature continues to drop below 4, and then use the stone sulfur mixture, the control effect will be worse.

Similarly, in the spring of the second year, before the fruit trees bud out, about mid-to-late February to early to mid-March (subject to the temperature of the year), at this time, the temperature rises, and the pests and diseases begin to infect for the first time.

Winter and spring are the main times for fruit trees to use stone sulfur mixture, in addition to these two times, stone sulfur mixture can also be used in the growth period of fruit trees, but the concentration is different, and it cannot be used when the temperature exceeds 32.

Every year from mid to late June, from September to September, apples, pear trees, and grapes can be sprayed with Bordeaux sap (copper sulphate + quicklime + water). However, different fruit tree species react differently to Bordeaux sap, so it is important to treat them differently and choose the appropriate ratio.

General fruit trees such as apples, pears and other fruit trees, because they are sensitive to copper ion reaction, are susceptible to copper pesticides, should be prepared with lime multiplier formula, that is, with 1 kg of copper sulfate, 2 kg of quicklime and 180 200 kg of water. Grapes are sensitive to calcium ions and are susceptible to lime pesticides, so they can only be prepared with half a dose of lime, i.e. 1 kg of copper sulphate, 1 kg of quicklime and 180 200 kg of water.

In July, copper sulphate and quicklime are mixed to produce "Bordeaux liquid", which is a suspension that adheres to the leaves and fruits of fruit trees to prevent rot!

Inject copper sulfate on fruit trees in winter.

Copper sulphate Bordeaux liquor is a fungicide formulated with copper sulphate, hydrated lime and water, which is mainly used to prevent the germination of spores and prevent the infection of pathogens. However, it should not be stored for too long time, so as not to cause damage to the physical properties, and it is best to use it now.

Bordeaux liquid is mainly used for the disinfection and sterilization of fruit trees, and can also promote the fruit tree leaf color to be dark green, grow robustly, improve the disease resistance of the tree, and have a special effect on downy mildew and anthracnose of fruit trees. However, Bordeaux sap cannot be used during the growth period of fruit trees, so the season of use is mostly concentrated in the growth season of fruit trees, generally in the summer and autumn of June and September. However, even in summer and autumn, the use of Bordeaux liquid spraying should avoid high temperature and high humidity weather, because if it is sprayed in the hot noon or dewy morning, it is easy to cause lime and copper ions to rise rapidly, resulting in burns of leaves and fruits.

In addition, there are many precautions for the configuration or use of copper sulfate Bordeaux liquid, such as: container material, configuration concentration ratio, spraying method, etc., these matters should be familiar before use, so as not to cause losses.

Hello dear, I am glad to answer for you that copper sulfate should not be used when fruit trees are blooming and young fruits. Flowering and fruiting are forbidden to make the type durable this clear rent tan pesticides, if the later use of the tung should also be appropriately reduced concentration, so as not to cause pesticide damage, cause flower drop, fruit drop, leaf drop. When copper sulfate is used in the later stage, it is best to mix it with zinc sulfate to prevent pesticide damage.

Thank you for your patience, I hope mine is helpful to you, if you are satisfied, please give me a thumbs up and wish you a happy life.

Summary. Hello dear <>

Yes, copper sulfate can hit fruit trees and spray copper sulfate on fruit trunks, which has a strong bactericidal effect and can prevent and control a variety of diseases on fruit trees and other crops. Copper sulphate mixed with lime water can be used to make Bordeaux liquid, which can be used as a sterilization at this time.

Can copper sulphate hit fruit trees?

Hello. Can these seedlings be treated with copper sulfate?

Hello dear <>

Copper sulfate can be used to spray fruit trunks with copper sulfate on fruit trees, which has a strong bactericidal effect and can prevent and control a variety of diseases on fruit trees and other crops. Copper sulphate mixed with lime water can be made into Bordeaux liquid, which can be used as a sterilizing cluster at this time.

The leaves of this fruit seedling have turned yellow.

The role of copper sulphate in agriculture is that it can be used to control fruit tree diseases. The solution of sechina copper sulfate has a strong bactericidal effect, and is mixed with lime water to form Bordeaux liquid, which is used to control fungi on fruit trees such as grapes and apples, and prevent fruit decay; I wish you a happy life! I hope mine is helpful to you

What's the matter with these yellow leaves?

There are the following reasons why the leaves are yellow: too much watering; Too little watering is manifested; lack of lighting to express excitation; Sunshine burns the performance of fiber socks; Nitrogen deficiency fertilizer performance; Phosphorus fertilizer deficiency in vertical land; potassium deficiency manifestations; Soil alkaline performance.

What kind of medicine do I need? What do you recommend?

The first thing to do is to see what causes it. In order to prescribe the right medicine.

Summary. Hello, I am glad to answer for you, copper sulphate should not be used in fruit trees when they are flowering and young fruits. It is forbidden to use such pesticides for flowering and fruiting, and if it is used in the later stage, it is necessary to appropriately reduce the concentration of use, so as not to cause pesticide damage, causing flower drop, fruit drop, and leaf drop.

When copper sulfate is used in the later stage, it is best to mix it with zinc sulfate to prevent pesticide damage. [Bixin] [Bixin].

Hello, I am glad to answer for you, copper sulfate should not be used when the fruit is slow to bloom and young fruits. It is forbidden to use such pesticides for flowering and fruiting, and if it is used in the later stage, the concentration of use should be appropriately reduced, so as not to cause pesticide damage and cause flower drop, fruit drop, and leaf drop. When copper sulfate is used in the later stage, it is best to mix it with zinc sulfate to prevent pesticide damage.

[Bixin] [Bixin].

Hello, among the fruit trees such as apples, pears, peaches, and grapes, peach trees have the worst drug resistance and have allergic reactions to a variety of pesticides. In particular, copper and organophosphorus preparations should be used to avoid arbitrarily increasing the concentration, and it is best to mix copper sulfate with zinc sulfate when using it to prevent pesticide damage. Organophosphorus pesticides such as dichlorvos, trichlorfon, dimethoate, and dimethoate oxide are sprayed in front of the peach hard core, which has a strong effect of thinning flowers and fruits.

Therefore, it is forbidden to use this kind of pesticide before the peach rolls the hard core, especially during the flowering period, and if it is used in the later stage, the concentration of the use should be appropriately reduced, so as not to cause pesticide damage, causing flower drop, fruit drop, and leaf drop. Bordeaux liquid contains copper, which is also a banned agent on peach trees, and it is easy to cause serious perforation of peach leaves and a large number of defoliation after use. [warm] [warm].

Kiss peach tree is also more sensitive to stone sulfur mixture, the production is mostly used before germination, such as in the growth period to strictly grasp the use of concentration and avoid high temperature weather, otherwise it is easy to cause leaf perforation and fall off, the fruit surface is rough and atrophied. Peach trees are also very sensitive to atrazine (atrazine) weeding, and should not be used in peach orchards. Otherwise, it is easy to cause the leaves to turn yellow, and in severe cases, it will cause leaf and fruit drop.

Summary. Hello, I have seen your question and am sorting out the answer, please wait a while Is it okay to feed the fruit trees with copper sulfate?

Hello, I have seen your question and am sorting out the answer, please wait a while Copper sulfate is highly soluble, and its aqueous solution has a strong bactericidal effect, which is a good fungicide, herbicide and insecticide. Copper sulphate is used in a wide range of chemical fields, but also in agriculture and in the pyrotechnic manufacturing industry. However, this substance has a certain toxicity, so you must be cautious when coming into contact with it.

Summary. Hello dear, if you only use simple copper sulfate to spray fruit trees, this will definitely not work, because copper sulfate is very acidic, and it is generally used with other drugs, not alone.

Dear, hello, if it is a single stool to spray fruit trees with pure copper sulfate, this is definitely not possible, because the acidity of copper sulfur is very strong, and it is generally used with other drugs, and it is not possible to use it alone.

What can be paired with.

It can be mixed with water and slaked lime or soda ash, which is mainly used for insecticide and sterilization.

Can it be paired with Jinggang Meisu?

Yes, but this is ** rice koji disease. What proportions.

Sulfur 1. Right.

What's the point of 12:1?

These two ratios can be replaced, or the ratio of Jinggang Plum is 1, and the ratio of copper sulfate is 12 Oh.

Dear, it is okay for fruit trees to beat dry branches with Hu Cha Chew copper sulfate. Copper sulphate can hit fruit tree trunks. After the fruit is harvested, the trunk of the fruit tree is painted white before the beginning of winter.

Fruit trees are painted white, which has the effect of cold resistance, warmth, and killing pests and diseases. This is especially true for fruit trees in the peak fruiting period. Copper sulfate lime whitening agent 1, copper sulfate 10 kg, quicklime 200 kg, water 600-800 kg.

2. Preparation method: (1) Fully dissolve the copper sulfate with a small amount of boiling water, and then dilute it with two-thirds of the water used. (2) Add the remaining one-third of the quicklime water to slowly ripen the strips into thick lime milk.

3) When the above two liquids are fully dissolved and the temperature is the same, pour the copper sulfate into the lime milk, and stir it constantly. (4) Suitable for peach, plum, pear, apple, bayberry and other fruit trees.