1、 What medicine is the most effective for scale insects

1. Chlorpyrifos: chlorpyrifos is a commonly used drug to kill insects. It is not only safe, but also effective. It can remove many common insects. But there are also disadvantages. The disadvantage is that the taste is a little big and pungent. If you want to use it indoors, you should pay more attention

2. Thiamethoxam: this drug has low toxicity, no impact on human health, and has good insecticidal effect. It can be mixed with other drugs to kill insects, and the effect will be better after mixing

3. Silicone penetrant: this agent has more lasting effect and can penetrate into the pores of plants. It can assist the above two drugs and can completely penetrate the eggs, so as to kill the eggs. In addition to spraying, drugs can also be used to irrigate roots, and the effect is also very good

2、 How to eliminate it completely

If the number of scale insects is small, just pinch them off by hand or clamp them off with tweezers. The infected part should be cut off and completely destroyed. If there is in the soil, it is recommended to change the soil directly. However, if the pest phenomenon is serious, the best way is to spray medicine for treatment. The above three drugs are sprayed in turn, and the effect is relatively fast. In addition, in the later stage, the maintenance environment should be changed and more plants should be ventilated