How to control aphids in Chinese prickly ash

Zanthoxylum bungeanum is an indispensable condiment in our life, and its price is not cheap, mainly related to the low yield, if it is harmed by aphids when it is planted, then its yield will be even lower. Aphids are the most difficult pests in pepper diseases and insect pests. They absorb juice for a living, cause leaf curl when the harm is serious, and also secrete mucus, resulting in diseases, causing a devastating blow to the production of pepper. So how should pepper control aphids? Come and have a look with the editor.

1. Reasons why it is difficult to control Zanthoxylum bungeanum.

First of all, aphids are widely distributed, almost occur in plants, and migrate with the change of survival, which is also the reason why aphids spread everywhere. The natural enemies of aphids are very good, and now with the popularity of pesticides, many natural enemies basically disappear, which makes it more and more serious. With the abuse of drugs, many aphids basically produce drug resistance, so it is impossible to use agents to eliminate them at one stroke, its fecundity is very strong, often several generations can be harmed at the same time.

2. Focus on prevention

Aphids have strong fecundity and resistance to many pesticides, so prevention is the main way to control aphids. Stone-sulfur mixture can be used to clear the garden before sprouting, and after sprouting, nicotine pesticides such as imidacloprid and thiazine are generally used. Other spraying prevention time is generally in the flower bud stage, young fruit stage and fruit expansion stage, in which flower bud prevention is very important. if the aphid base is not controlled in the early stage, then the aphids are wrapped in mucus in the later stage, and the control effect is poor.

3. Prevention and control of natural enemies

The main natural enemies of aphids are Coccinella septempunctata and aphid flies. We can do something in growing prickly ash and use them to attract Coccinella septempunctata and aphid flies. Of course, we can also artificially breed Coccinella septempunctata to control them. Try to avoid the repeated use of broad-spectrum pesticides such as pyrethroids and organophosphorus pesticides during the growing period of pepper, which can cause the death of seven-star lady beetles. We can also take advantage of the yellowing of aphids and adopt physical methods such as yellow boards to trap aphids of Zanthoxylum bungeanum.

4. Chemical propagation

In the critical period of controlling aphids, attention should be paid to the combination of quick-acting and internal absorption agents, and penetrating agents such as organosilicon can be added to increase the effect of application, while for plants with a large base of aphids, it is appropriate to spray until the leaves drip.

The above is the introduction of how to control aphids. I hope it can help you. If you want to know more about it, please pay attention to us.