What medicine can be used to treat aphids on pepper trees?

The natural enemies of aphids are mainly ladybugs and syrphids. These natural enemies have a certain inhibitory effect on aphids. Protect natural enemies, do not use broad-spectrum pesticides and reduce the damage to natural enemies. Before the Zanthoxylum bungeanum trees germinate, use drugs with ovicidal effect, such as 99.438+0% dichlorvos EC and other similar drugs. During the growth of Zanthoxylum bungeanum, 10% imidacloprid wettable powder is commonly used.

What specific medicine can be used to completely remove aphids from pepper trees?

Aphid is only one of the pests and diseases of Zanthoxylum bungeanum, and it is also the main pest of Zanthoxylum bungeanum.

For its prevention and treatment, drug prevention is just one of them, not simply that it can be completely eliminated with that drug, but that we should master the time and prevention methods.

Only by grasping the control opportunity and proper methods can we effectively control pepper aphids.

The aphids of Zanthoxylum bungeanum mainly overwinter with eggs in the axils of Zanthoxylum bungeanum buds, beside Zanthoxylum bungeanum buds and in the cracks of Zanthoxylum bungeanum bark. Hatching in the second year hurts pepper buds and tender leaves. With the growth of Zanthoxylum bungeanum leaves, aphids concentrate on the back and tender leaves to suck juice.

With the increase of temperature, aphids multiply in large numbers, which seriously harms the fruits of Zanthoxylum bungeanum, causing fruit drop and serious yield reduction.

In view of the above situation, the time and method of prevention and control should be symptomatic.

1. Artificial control

When the occurrence of aphids is small in spring, cut off new ones in time. From autumn to early winter, old skins can be scraped off and painted white, which can effectively control the spread of aphids.

Step 2 use natural enemies to control

The natural enemies of aphids are mainly ladybugs and syrphids. These natural enemies have a certain inhibitory effect on aphids. Protect natural enemies, do not use broad-spectrum pesticides and reduce the damage to natural enemies.

This is a very good method to control aphids, which should be made good use of and worth advocating and popularizing.

3. Chemical control

Before the Zanthoxylum bungeanum trees germinate, use drugs with ovicidal effect, such as 99.438+0% dichlorvos EC and other similar drugs.

During the growth of Zanthoxylum bungeanum, 10% imidacloprid wettable powder is commonly used.

To sum up, Zanthoxylum bungeanum aphid is the main pest, so we should pay attention to the time, way and method of controlling aphid. No specific medicine is completely eliminated, prevention is the key, prevention is the main one, and treatment is the supplement.

If the prevention is not good, after a large number of aphids occur, the medicine is too heavy, the aphids are cured, and the pepper is finished.