How to control aphids on Sichuan pepper? A detailed guide to the latest methods

Sichuan pepper is an indispensable seasoning in our daily lives, and its price is not cheap either, which is mainly related to its relatively low yield. If aphid damage occurs during the cultivation of Sichuan pepper, its yield will be even lower. Aphids are the most difficult pest to control among the diseases and insect pests of Sichuan pepper. They live by sucking sap, and when the damage is severe, they cause leaves to curl and also secrete a sticky liquid that leads to disease, dealing a devastating blow to Sichuan pepper production. So how should Sichuan pepper be protected against aphids? Come and take a look with the editor.

1. Reasons why Sichuan pepper aphids are difficult to control

First, aphids are extremely widely distributed and occur on almost all plants, migrating as their living conditions change, which is also the reason aphids spread everywhere. Aphids have many natural enemies, but with the widespread use of insecticides, many natural enemies have basically disappeared, which has led to them becoming more and more serious. With the misuse of pesticides, many aphids have basically developed resistance, so it is impossible to eliminate them all at once with pesticides. Their reproductive capacity is extremely strong, and often several generations can cause damage at the same time.

2. Emphasis on prevention

Aphids have strong reproductive capacity and resistance to many pesticides, so control should focus mainly on prevention. Before budding, lime sulfur mixture can be used for orchard cleaning work. After budding, spray pesticides for a second round of orchard cleaning, generally using nicotinic pesticides such as imidacloprid and thiamethoxam. Other spraying times for prevention are generally at the flower bud stage, young fruit stage, and fruit expansion stage. Among these, prevention at the flower bud stage is extremely critical. If the aphid population is not controlled well in the early stage, then in the later stage the aphids will be wrapped in sticky liquid, and the control effect will be poor.

3. Natural enemy control

The main natural enemies of aphids are the seven-spot ladybird and hoverflies. When planting Sichuan pepper, we can intercrop certain crops and use them to attract seven-spot ladybirds and hoverflies. Of course, we can also artificially release seven-spot ladybirds for control. During the growth period of Sichuan pepper, try to avoid using broad-spectrum insecticides multiple times, such as pyrethroid pesticides and organophosphorus pesticides, as these will cause the death of seven-spot ladybirds. We can also take advantage of aphids' tendency to be attracted to yellow by using physical methods such as yellow sticky traps to capture Sichuan pepper aphids

4. Pesticide application

During the key period for aphid control, when using pesticides, pay attention to combining fast-acting and systemic pesticides, and you can also add penetrants such as organosilicon to increase the application effect. For plants with a relatively large aphid population, spray the pesticide until the leaves drip.

  The above is an introduction to how Sichuan pepper should be protected against aphids. I hope it can help you. If you want to learn more related knowledge, please keep following us.