What if the leaves of crab claw orchid grow white?
1. Insect pests
(1) there is a kind of insect called "shell worm". It is a common pest, their body surface has a waxy layer, the general medicine can not infiltrate. Therefore, it is more harmful, and the leaves may grow white spots after the flowers are eaten by it.
(2) Control methods: first of all, we should adjust the mode according to the number of bugs. If the quantity is small, you can brush them off with a brush or scrape them off with bamboo. It can also be glued off with tape, which is relatively simple and easy to operate. Then, rinse the plant with water.
If there are a lot of bugs, then we have to spray the potion. In general, we can use malathion EC. When spraying, you need to pay attention to evenly spraying the positive and negative sides of the leaves, because the bug may also be found on the back of the leaves.
And then pay attention to the surrounding environmental conditions. At ordinary times, don't forget ventilation, but also give light in time to improve its disease resistance. Also, if one tree is infected, be careful not to let other flowers near it to prevent pests from migrating to other flowers.
2. Disease
(1) reason: it is susceptible to a disease called "powdery mildew". At the beginning of the disease, there will be some small spots on the leaves of the plant. Then, the spots are linked together and appear in the shape of white powder. In general, the lower leaves are more hairy.
(2) Prevention and treatment: first of all, dispose of the diseased leaves. Then we can spray some vermicellin solution. In addition, we need to pay attention to the amount of watering, not too much. In addition, do not splash on the leaves when watering.
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What if the leaves of crab claw orchid turn purple?
We raise this kind of plant mainly to watch its flowers, right? From October to February of the following year, we can see beautiful flowers. However, its appreciation is not just reflected in the flowers. We can also see from the picture that its leaves also give people a comfortable feeling. If its leaves turn purple, it will particularly affect its overall appearance. So, what is the cause of this?
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Culture methods and matters needing attention of rhododendron
This kind of green plant its leaves are very green, the color of flowers is also very bright, flowering time is also very long, ornamental is very high, in the world are very famous, loved by many friends. So how to raise this kind of flower, is there any good way to learn, and what need to be careful?
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