When citrus is blooming, how to effectively control pests and diseases?

Do not use highly toxic pesticides, such as organophosphates, during the flowering period. Pesticide labels will indicate low toxicity, poisoning or high toxicity, for safety, try to choose low toxicity pesticides. Do not use emulsifiable agent during the flowering period, it is easy to cause the phenomenon of young fruit peel, it is recommended to use suspension agent to clear the garden in winter.

After fruit picking, the microbial agent has the effect of increasing the organic matter content of the soil, forming the soil aggregate structure, balancing the soil cultivation roots, retaining fertilizer and water, resisting waterlogging, and enhancing the tree. 2. Manually remove the infected flower buds, and at the same time carry out shallow tillage on the shallow soil layer around the canopy, which can effectively reduce the insect pest.

<> in the flowering period, organophosphorus pesticides can not be used, and emulsifiable concentrate-type agents can not be used. It is recommended that the suspension form is safer. In addition to paying attention to the damage to flowers and leaves of some pesticides during use, we should also pay attention to the temperature characteristics of the pesticides used, so as to achieve drug safety and good control effect.

Citrus flower buds to the full flowering period to control red spiders, thrips, aphids, psyllids, flower bud maggots, canker, anthracnose, scabs, brown spot disease, etc. Flowering to Xie flowers for a few days, but it is impossible for each tree to bloom at the same time, the whole garden flowering period in 10 20 days citrus flowers are closely related to this year's yield, spring shoots and the next year's yield is inseparable, in the case of flowers and branches are very sensitive to drugs, fruit farmers must pay attention to when spraying, do not let the branches and flowers that are not yet mature produce pesticide damage, stone sulfur mixture: citrus flowering stage can not use stone sulfur mixture, stone sulfur mixture is a commonly used bactericidal acaricide, However, it also has the effect of shrinking flowers, that is, it is specially used to knock off the flowers, and if the citrus is sprayed with a stone sulfur mixture after flowering, it will fall off.

The main way to control pests and diseases during citrus flowering is to use drugs, but it is worth noting that because citrus is very sensitive to drugs during flowering, it is necessary to pay attention to the dosage, if the drug is used improperly or too much, it will lead to the consequences of falling flowers and fruits.

1.Prevention is the main thing, and the ability to resist insects and diseases is increased.

2.Grasp the critical period of prevention and control.

3.When spraying pesticides, it is recommended that insect pests and mites be controlled together.

4.Do not use highly toxic pesticides.

5.Buy some sprays that should be used to control pests.

When it blooms, it is the most important thing, you should pay attention to buy some sprays that should be used to control pests, and regularly go to see pests, if there are more, you can use some more pressure watering cans to drive away pests.

Due to the late sales of many sugar oranges last year, some growers basically did not clear the garden, it is expected that this year's pests and diseases are still difficult to control, the base of red spiders is also relatively large, I see a lot of citrus flowering red spider base is very large, we generally recommend that citrus mites are divided into different types such as full claw mites, rust mites, leaf mites, etc., different types of mites occur in law and living habits, so in the prevention and control of various mite pests according to the hazard characteristics of different prevention and control measures. Spider mites can occur up to 20 generations a year, with a very strong super reproductive ability, the peak of reproduction has been female can lay more than 30 eggs a day, whether it is a new little, young leaves or fruits, will be widely affected by it.

<> citrus red spider as a common and frequent pest in citrus pests and diseases, belongs to mites, will occur throughout the year, to absorb leaves, young fruit in the sap for food, said to cause leaves to wither yellow leaves, fruit drop, directly cause the tree to weaken, affect the effective prevention and control of red spider this number one pest, fruit farmers friends generally start from citrus germination, every seven or eight days to the orchard to check the annual leaves, as long as the leaf of the red spider reached 3-5 leaves, It is necessary to adopt 3 Avi in time. Citrus is very susceptible to spider mite infestation, so be sure to do a good job of control. If you want to do a good job in the prevention and control of citrus red spiders, you must be familiar with the habits of citrus red spiders.

Citrus red spider, in some places it is called citrus full-clawed mites, and in some places it is called tumor skin red.

Spider mites occur regardless of time of year and season, and if they are not well controlled, they may occur all year round. It is mainly a million mite. If it sucks on the branches, leaves, fruits, etc. of the plant, the surface of the sucked object will show countless gray-white spots.

And it is easy to break and fall off. Although citrus spider mites are present throughout the year, the time period for causing damage is generally from May to June, and September to October is the time when the number of red mites is the largest and the most harmful. Due to the higher temperature of the weather in July-August, when the temperature exceeds 32.

Chemical control. Choose biological sources with low residue and short residual effect, mineral pesticides. The annual pesticide application amount is less than 5 times, and the number of pesticide applications is controlled within 2 times. In strict accordance with the requirements of citrus green food production, select the right pesticide varieties.

After fruit picking, the microbial agent has the effect of increasing the organic matter content of the soil, forming the soil aggregate structure, balancing the soil cultivation root system, retaining fertilizer and water, resisting waterlogging, and enhancing the tree body.

The flowering period of citrus can be sprayed in advance to achieve the purpose of control. Spraying prevention can be carried out with spiroethyl ester and ethoxylated vegetable oil, citrus needs more nutrients during the flowering period, and proper supplementation of nutrients will help to produce robust flowers and improve fruit set.

Citrus flowering period is divided into early flowering period and vigorous period, Xie flowering period, early flowering period (flower buds) and Xie flowering period can be moderately used drugs, mainly to bypass the vigorous period of the use of drugs, because the drug is more sensitive to the flower is easy to lead to serious flowering, endangering the production. The pests and diseases that appear in the flowering period are only thrips, gray mold, and scabs, and most of the pests and weeds can be prevented before flowering and early flowering.

After fruit picking, the microbial agent has the effect of increasing the organic matter component of the soil, forming the soil aggregate structure, balancing the soil cultivation root system, retaining fertilizer and water, resisting waterlogging, and strengthening the tree.

When pruning in winter, all the branches, leaves, and serious pests and diseases of the tree are removed out of the garden and destroyed, and the weeds are cleared, and then the medicine is sprayed to clear the garden, and the garden is very important, mainly to remove all the diseases, insects and weeds for wintering, so that the second year of the pests and weeds is serious and difficult to prevent. It can be used to make stone sulfur mixture crystals or homemade to carry out garden cleaning, which is insecticidal and sterilization, and affordable. At the beginning of spring the following year, the flower buds are sprayed again before they have germinated.

Flower buds germinate about one centimeter and begin to be prevented with drugs, the main prevention of citrus psyllids, leafminers, leaf-eating insects, gray mold, scabs, thrips, ulcers, anthrax, sand skin, etc., looks diverse, can be divided like that, the use of drugs to divide pest drugs and pest fungicides, pest drugs with killing adults and insecticidal eggs, fungicidal drugs with ** protection of compound drugs, so that the drugs will not be diverse, right!

Botrytis is easy to produce as long as it rains, and can be treated with the help of flower shaking, and drainage as soon as possible can prevent fungal bacteria from growing and pests and diseases. Then like thrips, scabs, and sand skins are all more effective in the early flowering and spring shoot germination and hair extraction periods, and all of them are preventive measures in the middle and late stages. At this time, three times to carry out prevention, every 7 10 days of spraying, the third time has the buds blooming, the leaves, to prevent the disease, insect and weed pests to be prevented, the flowering period does not need to worry about diseases, insects and weeds, but the use of drugs often in the field to pay more attention.

During the flowering period of citrus, you can spray special pesticides to control citrus pests, and of course, using insecticidal lamps is also a very effective way to kill pests and diseases.

When flowering, they should be allowed to absorb enough sunlight and should be watered more, only then can they achieve the environment they want, and they can be sprayed with some insecticides, so that they will not welcome other insects and will not harm the roots.

During the flowering period of citrus, it should be effectively protected from diseases and insects: if the flowering period is properly managed, there will be more flowers, and there will be more fruits in the later stage, so as to ensure high yield in the later stage; Pest control, emphasizing ground spraying, not only attention to the spraying on the canopy, but also to sanitize the ground of citrus; The drug must be started when the citrus buds are just white or 2 to 3 mm in diameter, and should not wait until the flowers are fully opened.

Reasonable fertilization, application of macro-element and micro-element fertilizers required for flowering, application of high-phosphorus fertilizer when flower buds germinate, balanced fertilization in the later stage, reduction of nitrogen fertilizer application ratio, pay attention to supplementing boron fertilizer. Organic foliar fertilizers, such as amino acids, alginic acid, are supplemented by foliar supplementation; Rational use of regulators, such as phenylpept acid, brassinin, plant hormones should not be used in excess.

Use pesticides to control when flower buds germinate, after picking fruits, you can use microbial agents to enhance the disease resistance of fruit trees, spraying drugs It is best to choose some drugs to avoid drug resistance, and clean up citrus orchards in winter.

You can spray some insecticides or fungicides that are not so effective, or you can choose a suspension.