What to do about the dried leaves of the Fraxinus bonsai
An article sharing some knowledge, introducing how to deal with the dried leaves of the Fraxinus bonsai, as well as the causes of leaf drying and the measures to resolve them in terms of plant care. Here is a comprehensive introduction.
Key point: Fraxinus is a deciduous tree or small shrub, a good material for making bonsai, and has always been called the "king of bonsai" by experienced enthusiasts due to its high plasticity, making it easy to transform in bonsai creation. It is also very popular in root carving. So, don't miss out on the Fraxinus tree if you're into bonsai. The common Fraxinus ornamental is an excellent material for bonsai, and it is also commonly used in urban greening for large-scale stakes decoration.
The question raised by netizens is about what's wrong with the leaves of the Fraxinus. To clarify the situation, let's first analyze the picture provided by the netizens:
From this picture, we can see that the netizens' Fraxinus tree is in a very serious condition, with almost all the leaves showing chlorotic spots. Generally, if the Fraxinus tree is well-ventilated and receives sufficient sunlight, it grows well. This is the reason for urban greening and outdoor cultivation. However, problems are more likely to occur in indoor balconies or environments with poor ventilation.
In the area marked with a circle 1, we can see that a large number of leaves have fallen, and the fallen leaves are still green, indicating that the petiole shedding and leaf dropping are caused by root problems, which is clearly due to the overly moist potting soil and excessive watering.
In the area marked with circle 2, we can see many chlorotic spots on the leaves. All the leaves have these chlorotic spots. What's going on? This is caused by the damage of red spider mites. In high-temperature and dry environments, temperatures above 25 degrees Celsius can easily trigger red spider mites, and it's currently the season for their outbreak. Red spider mites are usually not visible to the naked eye, but they can be clearly seen with a magnifying glass.
In the area marked with circle 3, red spider mites have caused severe damage. If the weather becomes hot and humid later, it can easily lead to fungal infections and trigger the common sooty mold disease.
In the area marked with circle 4, pay attention to the new buds and branches. We can see that the new buds are shrinking and the new branches are withering, which is caused by insufficient water supply and dehydration. Clearly, the root vitality is poor, indicating excessive watering of the potting soil.
In the area marked with circle 5, the netizen has performed a bark removal check. We can see that the branches are still green, indicating that the Fraxinus is still alive, but proper care measures need to be taken immediately. If the roots rot severely, it will be difficult to save.
In the area marked with circle 6, we zoom in on the potting soil. Clearly, the potting soil is moist, indicating that the netizen usually waters too much, resulting in poor root vitality and growth of the Fraxinus, making it susceptible to pest damage.
What to do about the dried leaves of the Fraxinus bonsai
In conclusion: The main problem with the netizen's Fraxinus is excessive watering, resulting in moist potting soil, poor root vitality, causing new buds and branches to shrink and wither, then being attacked by red spider mites, causing leaf chlorosis spots, severe blackening, and leaf drop, which is very serious. In this case, the main goal is to keep it alive.
What to do about the withered new buds and chlorotic yellow leaves of the Fraxinus bonsai? The bonsai teacher offers this advice.
1. Loosen the soil for better aeration.
It is recommended to loosen the surface soil of the pot to increase aeration, allowing more oxygen in the potting soil and strengthening the root respiration, which will gradually recover the growth, produce new buds, and protect them through careful care.
2. Pruning
If the situation is already very serious, pruning is necessary.修剪 the severely blackened leaves, and some leaves with fewer chlorotic spots or the top tender leaves can be left to perform photosynthesis and supplement some nutrients. After preventing and treating red spider mites, some leaves will naturally fall off.
3. Control red spider mites
Control them promptly. You can use pesticides such as螺螨酯, pyridaben, and fenpyroximate to spray and control red spider mites. If you don't want to use pesticides, you can use machine oil to wipe the leaves directly. However, this is too time-consuming, and diluting it with water for spraying has a lower effect. Pesticide control should be done once a week, about three times to achieve control.
The above content about what to do about the dried leaves of the Fraxinus bonsai and the causes and solutions for leaf drying is not allowed to be copied without the permission of the Green Enthusiast Network!