There are two kinds of common scale insects: white scale insects and root scale insects.
White scale insects generally appear on the back or heart of leaves, and sometimes on the stems, that is, white scale insects appear on succulents on the soil surface.
Root mealybugs often appear in soil and can only be seen by pulling out the roots of succulents.
Scale insects can be said to be the biggest natural enemy of succulents, because they appear frequently and infect quickly, and it is difficult to eradicate them.
1. scale insect
Scale insects are afraid of water, and dry environment is easy to breed white scale insects. If your succulents are not watered for a long time, be careful, this environment is a hotbed for the growth of white scale insects.
Moreover, scale insects fly very fast, from one plant to another, spawn and reproduce, and soon they will infect a large piece of meat.
Therefore, it is necessary to observe frequently at ordinary times, and succulents with white scales should be isolated in time and treated immediately.
It can be treated with clean water and crushed to death with tweezers. Essentially, scale insects are afraid of water. If it doesn't work, you have to take medicine.
Don't be nervous when you see bugs taking drugs indiscriminately. At this time, the flower escort can no longer kill the scale insects, and everyone can treat the scale insects with highly medicinal drugs. The concentration cannot be adjusted at will, and it should be blended in strict proportion. The recommended ratio is about 10%-20% lower than the minimum ratio in the manual.
2. Root mealybug
This kind of bug rarely reaches the soil surface, so it is difficult to find. Only when plants have problems (no growth or withering) will we find this.
Moreover, because the scale insects are in the soil, if it is a flowerpot with holes, the insects will come out with the water when watering, and they are likely to run to other flowerpots.
Please refer to the medication of white scales for medication. If you don't want to use medicine, you can pull out the succulents, throw away the soil, clean the succulents and dry them. It is best to wash the flowerpot repeatedly and then soak it with insecticide, and then change the pot and soil again and plant it again.
Neither white scale scale nor root scale scale scale can be removed by drugs or artificial pesticides. Need repeated medication and frequent observation.
Moreover, because scale insects secrete wax, the medicine that can kill scale insects is a strong emulsifiable concentrate. If it is not used well, it will cause great phytotoxicity, hurt succulents, and lead to disfigurement or death of succulents.
Any medicine is harmful. Use it as little as possible. Ventilation to maintain the environment, good maintenance habits, multi-particle soil mixing and correct planting methods can effectively prevent diseases and pests of succulents.