What harm does eggplant aphid disease have? How to prevent and cure?

Eggplant is one of the vegetables we often eat, no matter what it is, it tastes very delicious. The method of growing eggplant is not complicated, but it is prone to insect pests in the specific growth process, such as common aphids. So what harm does eggplant aphid disease have? How to prevent and cure?

What harm does eggplant aphid disease have?

Eggplant aphids often gather on the back of the leaves or on the stems that have just grown, and then use a prick sucker to suck the juice from the eggplant, and then secrete dew to contaminate the eggplant. In this way, the leaves of eggplant will be curled, curled up and so on. If the symptoms are relatively mild, it will only cause the leaves to turn yellow or the green is not uniform, and if it is serious, the whole plant will wither or even fail to care. Aphids will not only appear the harm of eating, but also spread other viruses, but also cause the characteristics of reduced production, growers do not pay attention to the phenomenon of loss.

Aphids grow more slowly in early spring, and when the temperature gradually picks up, aphids multiply in large numbers, especially before the beginning of summer. With the increase of Rain Water in summer, aphids will decrease a little, then they will begin to reproduce in autumn, and the temperature drop in winter will slowly decrease. Therefore, there is a high incidence of aphids in late spring, early summer and autumn.

Second, how to control eggplant aphid disease?

Method 1: if you want to eliminate aphids, you should first start from the overwintering period after eggplant flowering, so that the efficiency is better. If the effect is not obvious only when the aphids reproduce most quickly, it is likely to leave the aphids' eggs.

Method 2: if the newly introduced eggplant seedlings, it is necessary to screen to see if there are other new insect pests invading, usually to disinfect the soil in order to clean up the eggs of aphids.

Method 3: if a large number of aphids are found in the eggplant field, they should be isolated in time, and professional drugs should be selected to eliminate insect pests.

Method 4: planting fewer cruciferous vegetables in summer in conditional areas and cleaning the countryside so as to cut off or reduce the aphid and poison sources of autumn vegetables.

Method 5: silver film to avoid aphids, first spread 17cm wide silver gray film around the seedbed, and then hang silver gray film strips on the top; laying silver gray film strips in the interval of vegetable fields, which can not only avoid aphids, but also reduce the migration and transmission of winged aphids.

Method 6: make a sowing plan in advance and implement scientific rotation and intercropping. The eggplant should be ploughed thoroughly before sowing, and then the weeds and crop residues in the field should be removed and taken to far away from the farmland for harmless treatment so as to reduce the occurrence of insect pests. Strengthen the management of vegetable garden, when insect pests are found, drug control should be done immediately.

Once eggplant suffers from aphid disease, it is necessary to cure eggplant with the above methods in time, so as to avoid greater harm and a decline in production.