In early spring, temperatures vary greatly, so plants should not be moved outdoors too early

Reasons why spring flowers and trees easily wither and die

1. If the potting soil remains dry for a long time, the flowers and trees cannot absorb enough water, and in spring the temperature rises quickly, the wind is strong, and water evaporates quickly, which easily causes an imbalance between water supply and demand in the flowers and trees, ultimately leading to their death.

2. Overwatering keeps the water in the potting soil saturated for a long time, and the plant's root system will rot or become moldy due to lack of oxygen supply, and may even die.

3. Excessive fertilization or too high a fertilizer concentration can easily burn the roots, causing the plant to wither and die. This is especially true for newly repotted plants, whose root absorption capacity is weak and which mainly consume their own internal nutrients and water; fertilizing at this time is most likely to burn the tender roots.

4. The main pests that cause flowers and trees to wither and even die include scale insects, aphids, scarab beetles, and longhorn beetles; some of them absorb fluids from plant tissues, some damage the roots of flowers and trees, and some bore into the xylem of flowers and trees. The main diseases that cause the death of flowers and trees include powdery mildew, damping-off, and so on.

5. In spring, temperatures fluctuate between cold and hot with large differences, and moving flowers and trees outdoors too early makes them prone to death because they cannot adapt to the rapidly changing outdoor weather conditions. In addition, if flowers and trees that have recently been potted are placed in sunlight as soon as they grow new leaves, this will accelerate water evaporation from the leaf surface and cause the plant to lose water and die.

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Measures to prevent flowers and trees from withering and dying

1. For ordinary flowers and trees, the principle for watering is:

Do not water if not dry; when watering, water thoroughly.

2. The principle for fertilizing potted flowers is

apply thin fertilizer frequently

, that is, the amount of fertilizer applied each time should be small, but the number of applications should be greater.

3. All flowers and trees should not be moved outdoors too early; they should be moved out only after weather conditions have stabilized. This is especially true for newly potted flowers and trees: do not move them outdoors into sunlight too early; instead, keep them indoors or in a cool, ventilated place for care for a period of time, and only after their growth has stabilized may they gradually be moved into sunlight.

4. To control scale insects and aphids, spray with a 1000-fold dilution of 40% omethoate or other insecticides; to control scarab beetles, use black-light traps to attract and kill adults, manually capture adults, or use insecticides; to control damping-off, drench the roots with a 1000-fold dilution of 70% thiophanate-methyl wettable powder in the early stages of the disease.

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