Can citrus winter spray antifreeze really prevent freezing

Can late-maturing citrus spray antifreeze really protect against freezing?

Generally, before the arrival of cold air, when the root system has strong absorption, it is almost November to DecemberFor fruit overwintering varieties, the leaves can be sprayed 1-2 times of 10-15ppm 2,4-day fruit preservation for 2-3 times in a row to increase the stress resistance of the tree and enhance the cold resistance of the tree.

It can also be harvested in time before the arrival of frost and freezing, navel oranges, kumquat and other fruits can be harvested in time, and the varieties such as kumquat, Mashui orange, late-maturing banana orange, Maogu mandarin, W. Mercot, summer orange and late-maturing navel orange can be harvestedCovering the canopy with plastic film directly or over the canopy can reduce or avoid frost hazards；For fruitless trees, straw can be used to tie the trunk or cover the crown and tree tray to reduce frost damage.

Extended Material: Technical Measures for Post-Disaster Management.

In order to alleviate the anthrax and resin disease caused by frost disasters, avoid further death of the damaged branches, and minimize losses, corresponding technical measures should be taken for the orchards damaged by frost according to the different degrees of damage

1. Protect old leaves and prevent defoliation caused by frostbite. Foliar sprays can be applied with multi-element foliar fertilizers.

2. Prune because of trees. After freezing, when the temperature is stable at 12 15 in the spring of the following year, according to the degree of frostbite, combined with winter and spring pruning, classified pruning is implemented.

(1) For the immature autumn shoots that are lightly frozen, partially dry or deciduous or decided, the unripe autumn shoots can be thinned from the base, and the mature end shoots on the periphery of the canopy with the same degree of damage can be combined with spring pruning, and short pruning or partial thinning can be carried out 15-20 days before the spring shoots germinate;

2) For the branches that have fallen seriously after frosting, they can be retracted or directly cut from the top of the leaves and full buds of the basal branches.

3) For trees with severe frostbite caused by frost in spring, the autumn shoots, summer shoots or spring shoots should be re-cut to promote their strong late spring shoots or early summer shoots to restore the tree's potential.

4) For trees with mild frostbite and still a certain amount of flowers, it is advisable to prune mainly to preserve fruits, and on the basis of spraying to prevent anthracnose and resin disease, the autumn shoots below the frostbitten spring shoots should be appropriately shortened to promote the development of robust new shoots, and at the same time, some dense spring shoots that have not been damaged by frostbite should be appropriately thinned to improve the fruit setting rate.

It is recommended to spray antifreeze once 5-7 days before the cold wave, and it is recommended to use high-purity potassium dihydrogen phosphate (phosphorus and potassium source bank) + brassinolide mixed spraying, potassium dihydrogen phosphate is mixed with water according to 600 times, and brassinolide is sprayed with water according to the instructions.

Chamomile antifreeze is best to hit in the case of cool weather, and the car has various breakdowns because the temperature is too low.

According to the relationship between the growth and season of fruit trees, there are two main types of antifreeze that can be used on fruit trees: one is the antifreeze used on evergreen fruit trees, which is absorbed by the leaves to produce stress resistance and avoid cold. One is antifreeze that is used in a dormant state that has fallen leaves.

Citrus antifreeze is best applied in the winter, probably in early December, and works very well.

There are many kinds of antifreeze for fruit trees, but any agent that can make fruit trees resistant to cold and cold can be used as antifreeze for fruit trees.

Generally, in winter, antifreeze will be used, because the temperature is relatively low in winter, the glass water of the car and the condensate inside, he is easy to freeze and affect the start of the locomotive, so it is necessary to inject citrus antifreeze in winter.

Hello, I am a citrus planter, this in early December, the citrus area will have a cold wave weather, local mountainous areas may be frozen, so this period is the best antifreeze

Fruit tree antifreeze is a commonly used maintenance product for fruit farmers to protect fruit trees, in recent years, climate change is great, and fruit trees often suffer from frost damage, so more and more people use it. Common antifreeze agents for fruit trees are mainly absorbed to improve cold resistance by increasing the degree of soil quality, improving the structure of nutrient cells, and improving stress resistance.

Citrus antifreeze is sprayed 5 to 7 days before the low temperature comes, and the effect is the best, spraying once every 7 days, spraying 2 to 3 times in a row.

Many people think that in the context of global warming, frost damage will rarely occur. However, it is precisely because of the warming climate that severe or extreme weather has become more frequent, and "diving" cooling in winter is not uncommon, and citrus is even more frozen.

Citrus antifreeze is beaten about two to three days before the weather cools down.

Citrus is a tree species with low frost resistance, and its growth will be inhibited at low temperatures, affecting the development of fruit trees, which is why the north is not suitable for planting. Because of the low frost resistance, the abnormal climate in recent years has also caused many citrus growers to suffer heavy losses, and they have begun to pay attention to the cold protection of citrus. What to use citrus antifreeze and how to fight it for wintering has a good effect.

I think it's generally before the cold air arrives, when the roots are absorbent, it's about November-December.

From November to December, it is generally recommended that antifreeze be 5-7 days before the arrival of the cold wave when the root system has strong absorption capacity before the arrival of cold air.

Antifreeze can also be used in summer, and it does not need to be replaced in summer, generally two years or 40,000 kilometers, and it is okay to change it when it is dirty, and antifreeze is used all year round.

In autumn and winter, it will form a protective film on the surface of the citrus, and protect the citrus from freezing through this protective film.

After the autumn fruit is picked or the autumn equinox, the plant antifreeze is sprayed to 3-5 3 before the fall of leaves, and the spring prevents the spring cold and repairs the frozen fruit trees.

Summary. Hello! Dear, glad to answer for you! Salt water is not readily used in citrus antifreeze. Salt water does have some anti-freezing functions, but its Achilles' heel is that it cannot prevent corrosion, rust, and cavitation, and in serious cases, it will even penetrate the cylinder and leak to the combustion chamber.

Hello! Dear, glad to answer for you! Salt water is not readily used in citrus antifreeze. The brine residual skin file does have some anti-freezing functions, but its Achilles' heel is that it cannot prevent corrosion, rust, and cavitation, and even penetrates the cylinder and leaks to the combustion chamber when it is tightly controlled.

Salt water is not anti-freezing, spray salt water on the tree body. Spray 10%-15% salt water on the tree body before the arrival of low macro destruction and envy temperature and frost damage, which can increase the burden on the tree, such as dead trees, dead branches, large and small years, yellowing of leaves, fruit drop, empty shells, serious diseases and other problems.

Small use of salt water: When there is dust or dirt in the home, splash some salt water on the infiltration of the dirty wide brother brother, which can achieve the effect of sterilization, the principle is to use the osmotic pressure of salt water to make the bacteria lose moisture. In addition, if you sprinkle some salt water on the corner of the house during cleaning, you can also be careful to avoid the invasion of cockroaches and other mosquitoes.

This eliminates the need to buy pesticides.

Summary. Dear, citrus sprayed with mineral oil and then antifreeze can be used. <> mineral oil is a mineral-derived pesticide that is a specific component fractionated from petroleum and refined after emulsification, which is widely used in the comprehensive control of crop pests and diseases because of its low toxicity, no resistance, broad-spectrum control and environmental friendliness.

Dear, citrus sprayed with mineral oil and then antifreeze can be oh slim Jane. <> mineral oil is a kind of mineral-derived pesticide that is a specific component fractionated from petroleum and refined after emulsification, and is widely used in the comprehensive control of crop diseases and pests because of its low toxicity, non-resistant stuffy pants, broad-spectrum control and environment-friendly characteristics.

The functions of mineral oak oil are: 1. Basically non-resistant mineral oil mainly prevents diseases and insects through physical action, and it is difficult to produce resistance. Calling such as pie 2, one medicine and multiple treatments, the control spectrum is wide, mineral oil has a good control effect on a variety of pests and diseases, of course, it does not have any control effect on larger pests and soil-borne diseases.

3. Long duration of effect, reduce the number of spraying because mineral oil can not only kill the adults and nymphs of pests, but also have a good killing effect on insect eggs, so it can control pests for a long time. At the same time, because the application of mineral oil has little effect on the natural enemies of pests, it can achieve the effect of "treating insects with insects". 4. Slightly toxic, environmentally friendly mineral oil is safe for pesticide applicators, has little impact on the environment, and has a low risk of pesticide residues.

With the advent of winter, frost and snow damage are fatal disasters to the late-maturing citrus fruits, which not only have a great impact on the tree potential, but also affect the fruit quality and yield, and directly affect the interests of fruit farmers.

Anti-freezing measures: professional anti-freeze cloth for cold protection, anti-freeze cloth has the functions of anti-freezing, waterproof, breathable, etc., which can effectively prevent rain, snow and frost disasters in winter, using plant fibers, polymer absorbent resin and other materials, multi-layer protection, effectively prevent fruit trees from frost mountain or frost damage in winter, and realize the tolerance of crops to low temperatures, and improve the cold resistance of crops.