In the summer of 2022, climate disasters caused by high temperature weather swept the entire northern hemisphere. Not only did the high temperature exceed historical extremes, but it also lasted for a long time. In China, according to the data of the National Climate Center, from June to mid-July alone, the high temperature weather covered an area of ​​more than 5 million square kilometers. The highest temperature of 76 national weather stations across the country exceeded the historical extreme value. About 900 million people in China have suffered More than 30 days of high temperature weather.
Friends who grow potted succulents on the balcony or patio, how are your succulents? Under the environment of high temperature and sun exposure in summer, plus occasional rain, succulents are easy to hang up. In summer, succulents are particularly prone to water and black rot, and they are also susceptible to scale insects. Is there any way to save them?

The succulents of spring are like this。

1. The key to preventing succulent water black rot:
In summer, succulents must pay attention to preventing black rot in advance, avoid infection of fungi, avoid excessive rain, and also pay attention to shading. In the rainy season, succulents should also avoid frequent rain. The noon and afternoon sun exposure, coupled with warm air and poor ventilation, these succulents will soon hang. In the hot and humid environment in summer, succulents are also particularly prone to breeding pests and bacteria, which can invade from the wounds of succulents.
In addition, before the arrival of the rainy season, when the weather starts to heat up, it is also extremely important to spray the succulents in advance to prevent the growth of fungal diseases. Generally, spray carbendazim solution, thiophanate-methyl solution or mancozeb solution every three or four weeks, which is also the most effective way to prevent succulent black rot.

2. Soil and pot selection
Excessive moist soil or hot pot soil can also cause succulent black roots to rot. When planting succulents, the air permeability and drainage of the soil must be good. You can add some larger granular soil to the soil. The granular soil should account for more than 50% to 70% of the pot soil. Do not choose too large flower pots If the flower pot is too large, the air permeability and drainage will be poor. Too much soil will also cause water to be deposited in the soil and cannot be discharged in time, which is also one of the main reasons for black rot roots.

3. The situation of succulent and rotten roots
After the rotten roots are succulent, the leaves will turn yellow and wilt, and the leaves will continue to drop. The leaves will fall off when they are touched. At this time, there is a problem with the roots.
The whole plant needs to be pulled up in time, and the rotten roots are cleaned up. After the cleaning is completed, the bottom of its rhizome should be soaked with a bactericidal solution such as carbendazim solution, thiophanate-methyl solution or mancozeb solution, and then dried. Only after the wound can be replanted with new potting soil.
The cut succulent branches should be firm and not hollow. Then, the dried wound branches can be placed in a ventilated and shaded place. Be sure not to plant them in a hurry. Leave them for more than 7 days and wait for it to grow. The wound at the bottom has healed, and a little indole butyric acid is added to the cuttings.

4. Soil insecticide and sterilization:
When you care for succulents, you should also prepare some fungicides and insecticides in advance. The most commonly used ones include imidacloprid, carbendazim, etc.
When raising succulents, no matter how well shaded and ventilated is done in summer, sterilization should be done regularly. For example, when it is too hot in summer, even if it is shaded outdoors, the temperature is still very high. That is to move succulents indoors. Keep a small fan on so they can more easily get through the hot summer months, when you basically douse them with a carbendazim solution every two weeks or so.
Usually, when we buy potted succulents in spring and autumn, we can bury some small white medicine in the soil when we just plant it, so as to avoid the breeding of root mealybugs and other small insects. It is a very good systemic type. ‘s medicine.

The potting soil in which succulents are planted must be sterilized and disinfected in advance, and the potting soil can be watered with carbendazim solution to remove the bacteria from the soil.
5. The big advantages of indoor summer:
When raising succulents in summer, it is not watering in the morning or noon. When the weather is extremely hot in July and August, watering is basically stopped. In other months of summer, it is enough to give a little water occasionally, and watering is also fine. Do not overwater. Instead, water in the evening or at night when the weather is clear. Do not water on the leaves. In summer, when the weather is sunny at night, the water consumption is very fast. When the temperature is too high during the day, watering will only aggravate the death of succulents.
When succulents are usually found, there are withered and yellowed leaves at the bottom of the rhizome, which should be removed in time.
Finally, I would like to give you some advice. If you are a friend who grows potted succulents on the balcony, in the hot summer, it is recommended to move the succulent potted plants indoors, especially if the air conditioner or small fan is turned on at home, the succulent is easier to spend in summer, although The state will get worse, but at least they can be kept alive.