The reason why the leaves of the dahlia are yellow, what to do if the leaves of the dahlia are yello

Little Lilly. The yellowing of the leaves is mostly the reason why the nutrition has not kept up, because the flower potting soil in the greenhouse is less nutritious, so you can buy a bottle.

Nutrient solution. Just pour a little bit every three or five times.

The leaves of the flowers are yellow, don't worry about it, distinguish the reason and do it well!

Reason: Unsuitable potting soil can easily cause its leaves to turn yellow, dahlias are suitable for breeding in loose and drained soil, if you use more clay soil, it will not only cause the leaves to yellow, but also not conducive to its growth.

Solution: It can be replaced with suitable soil, which is not only conducive to the improvement of yellow leaves, but also has great benefits for its growth and development.

Reason: Some people will fertilize a lot in order to make it grow faster, which will easily lead to yellow leaves, or even wilting and rotting.

Solution: First of all, the yellow leaves should be removed, and then they can be watered thoroughly, put them in the sun, and they should be fertilized in an appropriate amount at ordinary times, not too much and too often fertilized.

Reason: Dahlias like sunlight, and if they are exposed to sunlight or do not receive enough sunlight during the growing season, they will have yellow leaves.

Solution: Keep it in a sunny place and out of the sun, and if the sun is strong, move it somewhere else.

Reason: Dahlias are afraid of waterlogging and are not drought tolerant, if they are watered a lot or lack of water, they will cause the leaves to turn yellow.

Solution: Watering it should wait until it is dry to water thoroughly, and if there is water in the basin after being rained, it should be discharged in time.

1. Reason: The yellow leaves of dahlias may be because the soil that raises them is not suitable for its growth. If the soil is not fertile enough or compacted, it may not grow well and the leaves will turn yellow.

2. Treatment method: At this time, it needs to be replaced with flower soil. Prepare some soft and fat new soil first, and put it in the sun for disinfection.

Then the plant is taken out of the old soil, the old soil in the pot is removed, and the new soil is loaded. Then use scissors to cut off the rotten roots and yellow leaves on the plant and plant them back in the pot.

1. Reason: It is suitable for growing in a position with moderate light intensity and long light time. If the light is too weak or too strong in the place where it is raised, it may cause it to grow poorly and cause the leaves to turn yellow.

2. Treatment method: Change the plant to a position with moderate light duration and intensity for maintenance. After a while, it will be able to return to normal.

1. Cause: Overwatering is also one of the reasons that may cause its leaves to turn yellow. This can lead to stagnant water in the soil, causing its roots to become rotten and unable to absorb water from the soil properly. This will turn the leaves yellow due to lack of water.

2. Treatment method: At this time, it needs to be dug out of the soil and cut off the rotten roots and yellow leaves with scissors. Then move it to a well-ventilated location to dry the cuts, and then plant it in some new, soft, breathable, well-drained, fertile soil for maintenance.

This look is mainly insect pests, red spiders, go to the flower shop to see the package of plant insecticide is better, a pack of watering can spray leaves and branches, spray three times in a row.

The yellowing of dahlia leaves first of all we need to find the cause of yellowing and make corresponding treatment according to the cause of yellowing.

1. The reason for the yellowing of dahlia leaves.

Most of the time it is because the cultivation land is too low and the water is accumulating, and when it rains for several days, it will be caused by waterlogging and rotting roots.

It is also possible that improper fertilization is caused by the direct application of chemical fertilizer to the taproot and the burning of the roots (or the watered urine fertilizer).

2. What to do if the dahlia leaves are yellow.

1. Potting soil selection. Dahlias are suitable for cultivation in loose, humus-rich, well-drained sandy loam soils or artificially formulated nutrient soils. If you find that the leaves of the dahlia are yellow, check the soil and replace them in time.

2. Light and temperature. Dahlia likes light, the whole growth period needs to be sunny, and should not be too strong, and the seedling stage should avoid direct sunlight. Dahlias are neither cold tolerant nor cold-tolerant, and the most suitable growth temperature is 10 to 30.

Observe the environment in which dahlias grow and find out if the climate is affecting their growth.

3. Water and fertilizer management. Dahlias have fleshy and large tuber roots, which are not resistant to drought and waterlogging. Watering should master the principle of "dry and thorough". In the event of heavy rainfall, the stagnant water in the basin should be removed in time. Dahlia likes fertilizer, and when applying basal fertilizer, be careful not to contact with the tuber roots to prevent burns.

4. Disease prevention and control. The main diseases of dahlia are powdery mildew and leaf spot, and ventilation and drug control should be strengthened.

The leaves of the dahlia will wither, most likely:

Most of the time it is because your cultivation land is too low and waterlogged, and it will be caused by waterlogging and rotting roots when it rains for several days.

It is also possible that you have applied fertilizer improperly, and the fertilizer is applied directly to the taproot and is caused by burning the roots (or watering the urine fertilizer).

If it is caused, please loosen the soil in time after the weather is clear, open a ditch in time to improve the low-lying environment, and take measures to prevent waterlogging.

If it is caused, the fertilizer should be buried 20 cm away from the taproot, about 10-20 grams each time (the urine fertilizer should be mixed with more than twice the water).