Do blueberries also need to be pesticides? Do blueberries have pesticides

At present, in China, the overall planting area of blueberries is still very small, so for the farmers, planting blueberries is also a very good choice, and the market prospect is very broad. In the process of breeding, it will also encounter the infestation of pests and diseases, but blueberries have a strong ability to resist pests and diseases, so is blueberry spraying?

Under normal circumstances, the harm is not serious, except for bird prevention in the ripening period, there is basically no need to use drugs to prevent and control. However, it is not excluded to spray, because blueberries are not 100% immune to pests and diseases, and once found, pesticides are needed to prevent and control them. When spraying pesticides, pesticides are selected according to different conditions, and then treated.

Because the root system of blueberries is not developed, then it is necessary to pay attention to the management of blueberries in the field, because blueberries are very afraid of drought and waterlogging, so farmers need to water an appropriate amount of water in the growing season, plus pay attention to timely drainage after rain to achieve the effect of waterlogging. However, blueberries have fewer pests and diseases, which is also a comparative advantage.

After encountering it, it is necessary to prevent and control it in time.

Generally, blueberries have a strong ability to resist pests and diseases, and do not need to be sprayed, if they are attacked by pests and diseases, they should be controlled by pesticides in time.

Hello! Generally, no, with modern agricultural technology, pests and diseases can be effectively avoided without pesticides.

Blueberries don't use pesticides much.

Blueberry plants are inherently highly resistant to disease, so there is no need to spray the plants when cultivating blueberries, so as not to affect the fruiting rate of blueberries. It is only when blueberries are found to have pests and diseases that growers need to carry out prevention and control.

Blueberries have a greater demand for water in the process of growth, so when breeding blueberries, it is necessary to provide the right amount of water for the plants, soak all the soil, and provide a more humid growth environment for blueberries, and pay attention to the amount of watering when providing water for blueberries, and it is best to water the water directly in the soil.

Blueberries will have some damaged and dry branches and leaves in the process of growth, so when maintaining blueberries, it is necessary to prune the plants properly, cut off the damaged and dry branches and leaves of blueberries, help blueberries save nutrients, and also need to cut off the branches and leaves that grow too dense or too long to improve the ventilation between plants.

Blueberry cultivation techniques

1. Prepare soil.

Blueberries like acidic soil, planting to choose humus, garden soil to prepare the cultivation base soil, and to add vinegar residue or white vinegar to its distribution, the pH of the soil is adjusted at about 5, if the nutrients in the soil are insufficient, you can also mix with well-rotted farm fertilizer to improve soil fertility.

2. Seedling selection and planting.

In the process of planting blueberries, it is necessary to choose seedlings with straight branches and good growth, and then use sterilized scissors to cut off the dry and damaged roots of the roots, put them in a cool place to dry the wounds, and then plant the seedlings in the prepared soil, compact the root soil and water it once to let the blueberries adapt to the environment.

3. Reasonable fertilization.

Blueberries are suitable for growing in a more fertile environment, so when breeding blueberries, they also need to provide reasonable nutrients for plants, and need to provide different nutrients for plants at different stages of blueberry growth, nitrogen fertilizer needs to be used in the period when blueberries are growing vigorously, and phosphorus and potassium fertilizers need to be used in the period when blueberries are flowering and fruiting.

As long as there is spraying in the planting process of blueberries, there will be pesticide residues, but as long as the residual pesticides on blueberries are lower than the national standards, as long as they are cleaned before eating, the probability of pesticide residue pollution is relatively small.

In addition to conventional sugar, acid and vitamin C, blueberry fruit is rich in vitamin E, vitamin A, vitamin B, superoxide dismutase (SOD), arbutin, protein, anthocyanins, edible fiber and rich in potassium, iron, zinc, calcium and other mineral elements, vitamins are higher than other fruits, trace elements are also very high, high amino acids, high copper, high zinc, high iron iron fruit.

<> blueberries do not use pesticides much, blueberries are different from most plants, blueberries have strong resistance to pests and diseases, and they can resist some pests and diseases. Therefore, in general, compared with other crops, blueberries have very little pesticide residues, and they can be eaten with confidence after cleaning.

1. Is there a lot of blueberry spraying?As a common fruit, blueberries rarely need to be sprayed in the planting process, because the blue berries of blueberries themselves have a strong resistance to diseases and pests, and can resist some pests and diseases. However, there is a limit to this ability, so once pests and diseases are found, growers should also carry out certain control to avoid unnecessary losses.

Second, are the pesticide residues on blueberries bad?Because the blue berries of blueberries themselves have strong resistance to diseases and pests, compared with other plants, blueberries need much less drug control in the planting process, and naturally the situation of pesticide residues is much better. And in the process of pesticide spraying, it is necessary to choose targeted drugs to improve the control effect, so as to reduce the use of pesticides, which can also reduce the amount of pesticide residues on blueberries or stupid.

Blueberries do not need to be sprayed during the growth process.

The blueberry plant itself has strong disease resistance, so there is no need to spray the plant when cultivating blueberries, so as not to affect the fruiting rate of blueberries. And when planting blueberries, you need to choose the right soil, and it is best to use sandy loam soil with rich trace element content and loose soil to plant blueberries, so that the plants can grow better.

Blueberries have a greater demand for water in the process of growth, so when breeding blueberries, it is necessary to provide the right amount of water for the plants, soak all the soil, and provide a more humid growth environment for blueberries, and pay attention to the amount of watering when providing water for blueberries, and it is best to water the water directly in the soil.

Blueberries are suitable for growing in a more fertile environment, so when breeding blueberries, they also need to provide reasonable nutrients for plants, and need to provide different nutrients for plants at different stages of blueberry growth, nitrogen fertilizer needs to be used in the period when blueberries are growing vigorously, and phosphorus and potassium fertilizers need to be used in the period when blueberries are flowering and fruiting.

Precautions for blueberry planting

It is very important to choose blueberry seedlings before planting, and we need to choose seedlings that are about two years old. This kind of seedling is not only the most affordable, but also has strong growth ability, can quickly adapt to various soil environments, and has a high survival rate. Light is very important for the growth of blueberries, and the intensity and time of light will directly determine the growth ability and even yield of blueberries.

Blueberries prefer watercress and we should pay attention to whether the local precipitation is sufficient when choosing the soil for planting. During the whole growth period of blueberries, it is necessary to ensure that there is sufficient water to meet the water needs of blueberries and there will be no water shortage. The fertilization fertilizer of blueberries is mainly farmhouse fertilizer, and the fertilizer requirement is moderate.

It is definitely necessary to apply pesticides, and treat disease prevention and control according to different conditions

1. Leaf spot disease: also known as snake eye disease, mainly damages leaves, petioles, fruit stalks, young stems and seeds. Small dark purple spots are formed on the leaves, and after enlargement, they form near-circular or oval lesions, with purple-reddish-brown edges, **gray-white, and slightly fine wheels, so that the whole lesions are snake-eye-shaped, and small black grains are not formed on the lesions.

Prevention and control measures: remove diseased leaves and old leaves in time. At the beginning of the disease, use 500 to 700 times of 700% bacteronil wettable powder, and spray it again after 10 days. Or spray 75 kg of water with 70% of the manganese-zinc wettable powder of Shanhusen with 200 grams per mu.

2. Powdery mildew: mainly damages leaves, but also damages flowers, fruits, fruit stalks and petioles. The leaves are rolled up in a spoon-shaped.

Flower buds, petals are purple-red, can not bloom or fully bloom, the fruit is not swollen, and is elongated; Young fruits lose their luster and harden. Strawberries in the near-ripening period will lose their value if they are harmed.

Prevention and control measures: In and around the center of the disease, focus on spraying Baumé stone sulfur mixture. After harvesting, the whole garden is cut and sprayed with 1000 times of 70% methyl tobuzin solution or 50% 50% 800 times of antibacterial special solution and 30% Fuling 5000 times of solution.

3. Botrytis cinerea: It is the main disease after flowering, and can occur on flowers, petals, fruits, and leaves. On the fruit during the expansion period, brown spots are formed and gradually expand, and the dense gray mold softens the fruit and spoils, seriously affecting the yield.

Prevention and control measures: In the budding to flowering stage, spray with 300 times of 25% carbendazim wettable powder, 800 times of 50% of bacteranthine wettable powder, and 500 to 700 times of 500% promedan.

4. Root rot: Starting from the lower leaves, the leaf margins turn reddish-brown, and gradually wither upwards until they die. The pillars begin to turn black-brown and rotten in the middle, and the central pillar of the root is reddish.

Prevention and control measures: Before transplanting, strawberries should be poured on the furrow surface with 600 times of 40% asparagus green powder, and then covered with tung bird soil, leveled and transplanted, so as to effectively kill the bacteria in the soil, reduce the number of bacterial sources in the field, and reduce the chance of infection.

5. Verticillium wilt: This disease is a soil disease, and the main symptoms are deformity of young leaves, yellowing of leaves, and extremely rough leaf surfaces. The leaf margins then turn brown and wither inwards until they die.

Prevention and control measures: strict introduction of disease-free plant planting; shorten the renewal period; Soil disinfection is carried out by irrigating with chloropicrin liters to 20 liters or solar covering film; Those who have become ill must be removed and burned.