What to do if the leaves of the crab claw orchid turn yellow
The web tells everyone about the experience of caring for green plants, such as what to do if the leaves of the crab claw orchid turn yellow and the correct methods to save the crab claw orchid. Let's learn about it together.
People often encounter various problems when raising crab claw orchids, the most common of which is what to do if the leaves of the crab claw orchid turn yellow. Many people also want to know how to save the wilted leaves of the crab claw orchid. Currently, the method is actually very simple. First, find out the reason for the yellowing of the leaves, and then take corresponding measures. Usually, the problem can be resolved in a short time.
【One, What to do if the leaves of the crab claw orchid turn yellow】
The crab claw orchid is a relatively easy-to-care-for plant in life. When the leaves turn yellow, it is usually due to various minor problems in the maintenance process. With careful care, it won't take long for the crab claw orchid to regain its vitality, but first, you need to find out the reason for the yellowing of the crab claw orchid leaves, otherwise, it will be impossible to find a good solution.
【Two, Reasons and Solutions for Yellowing Leaves of Crab Claw Orchid】
<1. Overwatering>
Too much watering can cause积水, which can slow down the growth of the crab claw orchid, even cause root rot, and if watering is too little, the soil will be too dry, leading to the drying of the fleshy stems, which can cause the leaves to become soft and lead to yellowing of the leaves, making them look very unattractive.
Solution: Watering should be moderate, not too frequent. Only water when the surface of the potting soil is dry, and water thoroughly when watering. Especially in winter, you must determine the watering based on the dryness of the surface of the potting soil. Of course, it is drought-tolerant, not drought-loving, and the potting soil should not be too dry, otherwise the same problem will occur. Both sufficient room temperature and no cold wind should be ensured.
<2. Direct sunlight>
The crab claw orchid is a short-day plant that prefers semi-shade and scattered light, and dislikes direct sunlight. Therefore, if it is often exposed to the sun but not shaded, the leaves of the crab claw orchid will turn yellow and become soft. Therefore, when caring for it, be sure not to place it directly in sunlight.
Solution: When caring, pay attention to shading, maintain good ventilation, and often spray water on the stem surface to prevent softness, especially in summer, do not place the crab claw orchid outdoors, otherwise it is easy to cause the leaves to turn yellow.
<3. Diseases and pests>
What to do if the leaves of the crab claw orchid turn yellow
The crab claw orchid is often affected by anthracnose, rot, and leaf blight, which can severely damage the leaf-like stems, especially in high temperature and humidity conditions. Seriously affected plants should be removed and burned. In the early stage of the disease, spray 500 times the 50% carbendazim wettable powder once every ten days, for a total of 3 times. When the scale insect infestation is severe, the surface of the leaf-like stems is covered with white scales, which weakens the plant's growth and causes the affected parts to turn yellowish-white.
Solution: Prevent the damage of red spider and scale insect. When they occur, spray specific insecticides for control, such as mitac, kelthane for red spider control; cypermethrin, diafenthiuron, etc., to kill scale insects.
<4. Lack of fertilizer>
When the crab claw orchid enters the budding stage, the supply of fertilizer and water should be sufficient, especially the need to increase fertilization, apply less or no nitrogen fertilizer, mainly to prevent luxurious growth and affect the formation of flower buds. Generally, apply a dilute fertilizer solution of well-rotted chicken manure, fishy water, bone meal, etc., once a week. Watering should not be too frequent, only water when the potting soil is dry.
Solution: The crab claw orchid does not require much fertilizer during its normal growing period, but it needs to be supplemented with some fertilizer in time after entering the budding stage to make the plant grow vigorously, the flower bud differentiation good, and the flower bud development normal and full. If there is a lack of fertilizer, buy some monopotassium phosphate, dilute it with water, and water it to relieve it. It can also be mixed with ferrous sulfate and chlormequat to mix.
【Three, How to save wilted leaves of crab claw orchid】
After the flowering period, it is a normal phenomenon for the peduncle to become soft and wrinkled, which is due to the crab claw orchid entering the dormant period, and there is no need to worry about its death. This dormant period lasts about 1 month. During this time, trim each node of the plant, cut off 1-2 nodes to keep the plant shape neat. Also, control the amount of watering during the dormant period.