Is this kind of stupid trick a trick? What kind of medicine is effective?

This is a mealybug. The shell of mealybugs has a waxy shell. It is difficult to kill them with ordinary pesticides. It is difficult to control them after they become adults. They need to be removed in time in the larval stage. Mealybugs It will suck the sap from the stems and leaves of plants, thereby harming the plants.

It is best to remove mealybugs when they are larvae to prevent their numbers from increasing too much. When they grow into adults, they will have a waxy powder coating on their bodies. If they are found on plants There is a layer of white powdery substance on the stems and leaves, which is probably the eggs of mealybugs. It looks like a layer of cotton covering the plants. Plants infected with mealybugs will grow more deformed, and the plants will It is very thin and prone to yellowing leaves and bud drop, as well as small buds and fruits.

The outer shell of mealybugs has a waxy shell. It is difficult to kill them with ordinary pesticides. They are difficult to control after adults. They need to be removed in time in the larval stage. Mealybugs will suck plant stems. The sap inside the leaves harms the plant.

Mealybugs are scale insects without beetles. They feed the plant's vital juices by inserting their needle-like mouthparts (probes) and causing their host to be destroyed.

The most effective method is to apply alcohol directly on the mealybugs. This method is suitable when there are few insect pests. You can also spray a solution of alcohol mixed with soapy water on the insect pests.

Chemical pesticides:

Prothion, chlorpyrifos, imidacloprid (aphid net), malathion