Blueberry leaves are yellowing and the edges of the leaves are wilting, what is the disease and how

It may also be a lack of fertilizer caused by inadequate maintenance and lack of nutrients.

Causes and solutions for yellowing and withering blueberry leaves.

The leaves of blueberries are yellow and dry, which can be the reason for the unsuitable soil. During the curing period, if the soil is not suitable and alkalization and agglomeration occurs, it is necessary to spray ferrous sulfate solution on blueberries in time. If the soil is not suitable, blueberries can also be replaced and planted in loose, fertile and slightly acidic soils with good drainage.

The leaves of blueberries are yellow and dry, which may be caused by insufficient water and fertilizer. During the curing period. If the water and fertilizer are insufficient, you need to water and fertilize the blueberries in time, such as Cuim Chong fertilizer, to supplement their nutrients.

According to the dry and wet conditions of the soil, appropriate amount of watering and fertilization should be used to keep the soil moist and sufficient nutrients, and the amount of watering and fertilizer should be adjusted in the later stage.

The yellowish and dry leaves of blueberries can also be caused by too much light. Blueberries are not tolerant to strong light during the seedling period, and after being sunburned, they need to do a good job of shading in time. Build a shade shelter for the blueberries and prune the sunburned leaves of the blueberries properly.

During the curing period, it is necessary to water appropriately to provide it with water, which is conducive to the later recovery of blueberries.

The leaves of blueberries are yellow and dry, which may be caused by pests and diseases. During the maintenance period, blueberries need to be pruned in time after they are infested by pests and diseases. After the leaves are disposed of, the blueberries need to be sprayed with chemicals to suppress them.

After spraying, avoid exposing blueberries to strong light, and store them in a cool place for maintenance.

Hello! It can be seen from the ** that your blueberries are short of fertilizer, it is recommended to apply a little nitrogen, phosphorus and potassium medium and trace element fertilizer (including zinc, calcium, magnesium, iron and other elemental fertilizers), and do not water in high temperature weather, watering in high temperature weather is easy to burn roots, resulting in insufficient nutrition, leaves will lose water, resulting in dry leaves.

Potassium deficiency is not a branch blight at all, but canker, but the leaf edge is dry that is a symptom of potassium deficiency, fertilize potassium dihydrogen phosphate, potassium sulfate, and other high potassium fertilizers.

Hello blueberry yellow leaf reason.

1. Seedling reasons.

The seedlings themselves are malnourished and have poor root systems, and when the roots are not broken and the roots are too thick in the planting process, it will lead to poor root growth and yellowing.

2. Improper soil.

Blueberry has strict requirements for soil pH value, with the suitable growth soil is between pH value, too acid and alkali are not conducive to the growth and development of blueberry, and in addition, when the soil organic matter content does not reach 5% or more, it is not conducive to the growth of blueberry.

3. Waterlogging. Low-lying plots that are prone to water accumulation are very prone to waterlogging, which seriously affects the growth and development of blueberry roots and the ability to absorb nutrients.

4. Underground insect pests.

Pests such as grubs and mole crickets will harm the root system of blueberries, resulting in damage to the root system and weakening of the tree. 5. Fertilizer damage blueberry is an oligo-fertilizer crop, and the amount of fertilizer is too large or the improper fertilization position causes fertilizer damage, which is also easy to lead to the occurrence of blueberry yellowing.

Blueberry workaround.

1. New branches of seedlings.

To choose 2-3 years old, developed root system, with 2-3 branches of robust seedlings, planting to break the eyes of the group, the roots are relatively dry, while soaking in water while transplanting.

2. Soil improvement.

Measure the soil pH value before planting, apply sulfur powder or humic acid to adjust the pH, apply organic fertilizer or forest peat, and improve the local soil to increase soil organic matter.

3. Ridge cultivation.

Drains can be built. It can effectively reduce the occurrence of waterlogging and avoid blueberry yellowing caused by waterlogging.

4. Pest control.

For the root damage caused by various pests and diseases, which leads to leaf yellowing, the root irrigation can be carried out with Fwosch foliar fertilizer + 30% oxazim + carbendazim + low-toxicity insecticide + plant auxin, which has the triple effect of sterilization, insecticide and root promotion.

5. Foliar fertilization.

Foliar fertilizer has the characteristics of high absorption and utilization rate and fast recovery, so it can be sprayed with foliar spray fungicide + Fuwo Shi trace element water-soluble fertilizer to supplement medium and trace elements in the early stage of yellowing, so that the yellowed leaves gradually turn green.

Overwatering, improper fertilization.

1. The performance of excessive watering, the young leaves are dark green and dull, and the new leaves are not long.

2. Insufficient light will cause the leaves to turn yellow and fall off.

3. Improper fertilization:

Nitrogen deficiency: simple leaves are yellow, new leaves are small and brittle;

Potassium deficiency: old leaves turn green to brown;

Iron deficiency: at the beginning, the leaves are pale yellow or white, the leaf veins are still green, and the leaf veins are also yellow or white when they are severe, and finally the leaves dry up and die, and the ferrous sulfate aqueous solution can be sprayed for prevention and control;

Magnesium deficiency: yellowing begins to develop from old leaves to new leaves, and the leaf veins are still green, and the leaves fall off and die in severe cases. It can be sprayed with 7%-8% ribery boron, calcium and magnesium fertilizer.

Phosphorus deficiency: old leaves are purplish-red or dark red; After more fertilization, the new leaf tips appear brown, and the general leaves are uneven and unstretched, thick and dull.

With the progress of science and technology and the development of society, many people are now basically mechanically integrated when planting crops. However, some farmers and uncles will inevitably choose to grow their own crops because of their love of labor. Blueberries are one of the most popular fruits that people like to eat, not only because they have antioxidant effects, but they are also very good for women.

However, when growing blueberries, there are also relevant precautions. Blueberry leaves are drying up, what are the ways to solve it? <>

1. Spray water When you buy blueberry seeds, try to pick fuller seeds in the market, which will also improve the germination rate of blueberries. And after buying the seeds, you can also soak them in warm water for a day, which will also increase the germination rate of blueberries. As we all know, when the seeds have not yet germinated, the requirements for water are very large, so everyone should also water the blueberry seeds all the time.

However, it is inevitable that there will be some dryness when planting, which means that the amount of water is still not enough. <>

Second, spraying pesticides sometimes dry up blueberry seeds, not because of insufficient water application, but by pests, which absorb all the nutrients in blueberry leaves. Therefore, if you find that blueberries have the problem of pests and diseases, you should also take further measures. The most direct and effective method is to spray pesticides directly, but we should also pay attention to the appropriate amount when spraying pesticides, and we should not spray excessively, otherwise it may have a high impact on the growth of blueberries themselves.

3. As we all know, blueberries are a relatively expensive fruit, so they should be strictly guarded when planting. When the blueberries have not yet germinated, it is recommended that the farmer can pay attention to the growth of the blueberries from time to time. Blueberries are very expensive in the market, and many people buy blueberries back to make blueberry wine, which is very delicious and delicious, and it is very friendly to some ** women.

Blueberry leaves are dry, possibly caused by a lack of water in the soil, so you should water the soil to keep it moist. It is also possible that blueberries are deficient in iron and need to be supplemented with ferrous sulfate. It is also possible that the soil acidity is not up to the requirements and the blueberries are not adapted to the alkaline soil environment.

You can water the blueberries more, turn the soil frequently, do a good job of shading the sun and do not let the sun shine directly, but also do a good job of insect control, and regular fertilization can be solved.

At this time, a large number of pesticides should be sprayed or irrigated in time, which can also ensure that there will be no drying up in the process, and the situation can also be improved.

It is necessary to water in time, fertilize in time, control the light intensity, pay attention to the density of planting, and at the same time ventilate in time, and remove pests and diseases in time.

Hit the foliar fertilizer once and then throw the fungicide.

It is a plant deficiency disease.

The main symptoms are:

1. Nitrogen deficiency. The leaf color of the old leaves of barley tillering is pale yellowish-green, the tips of the old leaves are dry, and the whole leaves are yellow. The stems are slender and erect, sometimes lilac, with few tillers and small spikes.

2. Phosphorus deficiency. At tillering stage, jointing stage or booting stage, the leaves are dark brown and slightly purple, especially the purple part of the leaf sheath is obvious, expanding from the tip of the leaf to the base, the plant is thin, the tillering is less, the cold resistance is poor, and it is easy to freeze.

3. Potassium deficiency. From jointing to booting stage, the leaves are blue-green, the old leaves turn yellow, the leaf tips and leaf margins are yellowed and scorched, the yellowing is more obvious at the booting stage, and white spots appear on the leaf surface, and the leaves are draped underneath. The angle between the leaves and main stems is large, the heading is difficult or dies early, and the wheat grains are small and shriveled.

4. Manganese deficiency. At the seedling stage, the new leaves are soft and draped, and the mesophyll of the new leaves is striped and loses green, changing from yellow-green to yellow-leaf veins, which are still green.

5. Iron deficiency. The lower leaves are green, gradually fading upwards, and the new leaves are all yellowing.