Causes of White Spots on Christmas Cactus and How to Fix Them

Many friends like to grow a few potted plants on their balconies at home, as they can beautify the environment and also be enjoyed for viewing. Plants, like animals, need our careful care and corresponding management measures. Some friends, when growing plants, encounter the situation where plant leaves develop white spots. Today let's take a look together at the causes of white spots on Christmas cactus and the solutions.
Causes of White Spots on Christmas Cactus
Christmas cactus belongs to the Cactaceae family. Usually, when plants in the Cactaceae family develop white spots, it is because pests have damaged their growing environment.
The main pest that causes white spots on plants is the "scale insect," a common pest among cactus plants, known as one of the "six major garden pests." In our daily life, we should pay attention to observing whether there are larvae on the leaves of the Christmas cactus and deal with them promptly.
Methods for dealing with scale insect larvae when discovered:
Scrape off the insects with a small bamboo strip. Note that the focus is on removing the insects, so operate carefully and do not cause too much damage to the Christmas cactus leaves, which would affect their normal growth. This is a relatively easy method to start with, but generally it is not easy to eliminate the pests completely with this method.
If we want to eliminate them completely, we need to use the method of spraying medication.
For example, the following points:
1.If scale insects are found, you can use a cotton swab or a small brush dipped in alcohol to wipe away the insect bodies.
2.Mix diesel oil, laundry detergent, and water in a ratio of 10:0.6:6 to make a stock solution. At this point the liquid is milky white like milk. Dilute it with water to contain 30% of the agent, then spray it on the larvae.
3.Use a commonly available insecticide, dilute it with water at a ratio of 1:200 according to the instructions and spray. After one week, spray once more, and basically there will be no more insects.
In order to reduce the harm that scale insects cause to Christmas cactus, in our daily life we should pay greater attention to the prevention and control of scale insects.
Key points for prevention and control:
Quarantine plants: scale insects have strong attachment ability and small bodies. When transporting and storing Christmas cactus, quarantine should be implemented to prevent the spread of pests.
Manual control: strengthen daily management, pay attention to loosening the soil in the pot of the Christmas cactus, enhance air circulation in the soil, fertilize in time, and strengthen the resistance of the Christmas cactus. Collect and burn stems and leaves found to carry insects, which can reduce the number of pests.
The above is the introduction by the editor of the causes of white spots on Christmas cactus and the treatment methods, as well as how to strengthen the prevention and control of the scale insects that cause white spots. We hope it is helpful to friends growing Christmas cactus. Thank you for clicking and reading!