What if the leaves of keel flowers turn yellow?

Dragon bone flower, in Guangdong someone called overlord whip fire locust. Its flowers are relatively small, very inconspicuous, but its tall fleshy stem and top dense leather-like large leaves, evergreen, a little strong and powerful when the overlord used the steel whip. Therefore, the old flower shop is used to putting a basin of overlord whip at the entrance, many families also like it, it is like two gatekeepers holding steel whips, with the meaning of evil spirits.

Many potted plants cultivated in pots often have yellow leaves, most of which are caused by poor management and site conditions. Indoor air is not smooth, insufficient light, dust accumulation on leaves, water and soil management disorder, air pollution, are the main reasons for causing yellow leaves.

A lot of bonsai novice enthusiasts found that after a period of time to buy back the bonsai leaves are yellow wither, do not know what is the reason, do not know how to deal with, today Xiaobian to potted keel flower as an example for everyone to introduce the cause analysis and treatment methods of keel flower leaves yellow.

1, the deciduous period causes the keel leaves to yellow: if it is in the deciduous period, then the leaves turn yellow is a natural thing.

Solution: Clean up the yellow leaves.

2, too much watering leads to yellow keel leaves (water yellow): too much watering will lead to root rot, leaves turn yellow.

Solution: Stop watering. The keel flower can survive even if it is watered only once in 1-2 months when it is dormant in winter. Spring can be separated by 10 or half a month to irrigate water, and with daily water spray. Water once a day in the morning or evening in summer.

3. Long-term water shortage leads to yellowing of keel leaves (drought yellow): leaves are prone to yellowing under strong light.

Solution: Shade measures should be taken in summer and placed in a place where light can be seen in winter to receive a certain amount of sunlight. Indoor plants had better be placed on the balcony, windowsill and other places where light can be seen.

4. Excessive fertilization of keel flowers leads to yellowing of leaves (fat yellow): too thick fertilizer is easy to cause fertilizer damage and root rot problem

Solution: keel flower in the growth period can be applied every 15-20 days a thin fertilizer, such as granular compound fertilizer or self-made alum fertilizer, can promote plant growth.

5. Diseases and insect pests cause the leaves of keel flowers to yellow: they will die when they are ill.

Solution: You can use carbendazim, poured on the roots of plants. The main diseases of keel are rust, powdery mildew and spot disease. After the seedlings are fully developed in the early stage of disease, 15% triadimefon 800 times solution or 70% mancozeb 500 times solution can be used to control them effectively once every 15 days. Insect pests are mainly white insects, grubs, mole crickets, with 1000 times trichlorfon solution irrigation roots, can be effectively controlled. Keep ventilation and light, generally spray two or three times to restore the original.

In addition, such as winter, or after a long drought, watering or temperature changes will mostly cause defoliation, which is normal metabolism. However, excessive watering will cause yellow leaves to fall, pay attention to immediately stop water, loosen the soil, watering principles later: dry to dry thoroughly, watering to irrigate thoroughly. Ventilation is also important.

Time: 2019-05-31 Click: