There are aphids on the vegetables. What kind of medicine should they take?

Vegetables are the food we often eat. Friends who have experience in growing vegetables all know that aphids are the most common pest. So, what are the ways to control aphids on vegetables? What medicine do aphids hit?

First, what are the methods to control aphids on vegetables?

1. Agricultural prevention and control

In the farming system, rotation should be implemented as far as possible and continuous cropping should be avoided. After the previous crop of vegetables is harvested, it is necessary to plough and dry ridges in time to remove sundries in the field so as to reduce the source of aphids. Aphids like to eat carbohydrates, in the process of vegetable cultivation, more mature farm manure should be applied, chemical fertilizer should be used as little as possible, especially too much fertilizer should be applied at one time to avoid excessive green and overgrowth of vegetable leaves. If carbohydrates increase sharply in the plant, aphids will break out in a short period of time.

two。 Silver gray film to avoid aphids

Aphids have a strong avoidance to silver gray, so they can hang some silver-gray plastic strips in the field or cover vegetables with silver-gray plastic film.

3. Urine washing mixture to kill aphids

Urea, washing powder and clean water were made into urine washing mixture according to the ratio of 4 ∶ 1 ∶ 400. the mixture was sprayed uniformly and meticulously on both sides of leaves, 60 kg per mu for 2 times. Spraying urine washing mixture not only has a good control effect on vegetable aphids, but also has the effect of foliar fertilization to promote growth. But the urine washing mixture should be used now to prevent the volatilization of urea.

4. Plant aphid control

(1) grind tobacco into fine powder and sprinkle with a small amount of lime powder; (2) soak hot pepper or wild Artemisia annua in water for one day and night, filter and spray; (3) sprinkle castor leaves after crushing, or soak in 1 ∶ 2 with water for 10 minutes, filter and spray; (4) peach leaves are immersed in water for one day and night, add a small amount of quicklime, filter and spray.

5. Plant expelling aphids

For example, the volatile smell of leek has a repellent effect on aphids, so planting leek with other vegetables can reduce the density of aphids and reduce the damage of aphids to vegetables.

6. Pig bile liquid to kill aphids

Adding an appropriate amount of baking soda or washing powder to 10% of pig bile and spraying it directly on vegetable plants harmed by aphids and cabbage insects can effectively kill pests. The diluted liquid can be kept for 10 to 12 days without failure.

7. Lime powder to kill aphids

Sprinkle lime powder on vegetable leaves with aphids, and the aphids will soon be killed.

Second, what medicine do aphids hit with aphids on the dish?

You can choose 20% imidacloprid EC 1500 times, 20% carbosulfan EC 1000-1500 times or 3% acetamiprid EC 1500-2000 times for foliar spraying twice every 5-7 days. Drugs should be used alternately to reduce the incidence of drug resistance.

For aphids on vegetables, in general, pollution-free control methods are mainly adopted, if it can not be controlled, low-toxic agents should be selected to control.