Disease control of Solanum nigrum

Solanum nigrum is a kind of plant with strong bacterial antibody, so it is mostly caused by diseases and insects and less caused by diseases. Every day, people will use it as medicine, which has a good effect on clearing blood and removing blood stasis. So what diseases will Solanum nigrum generally appear? Pro-agricultural network to take you to understand.

1. Stem base rot

This is easily caused by incomplete disinfection of planting soil or continuous planting for many years. First the plant becomes withered, withering upward from the roots, and finally the leaves begin to rot, rotting from the top to the bottom. After the emergence of such a disease, do not plant for the time being, or implement rotation, and so on the amount of virus in the soil is less. The common solution is to spray disinfection and spray drugs such as Bacillus subtilis and carbendazim on the planting site once a week for a month.

2. Aphids

This is a parasite that Solanum nigrum is easy to infect. It often appears on the surface and is easy to be seen by the naked eye. The disease is characterized by the appearance of a yellowish egg on the leaf surface, a dense piece, and some showing a speckled distribution. Then the leaves will slowly shrink into a cylinder and turn yellow. Every day, it is necessary to take away all kinds of residues in the soil to reduce pathogens. When the disease occurs, the infected leaves need to be removed, the plants need to be sprayed with 0.50% matrine, and the surrounding ones need to be sprayed.

3. Leaf mite

This is a kind of disease and insect that easily causes the fallen leaves of Solanum nigrum, which generally adheres to the back of the leaves of Solanum nigrum. The onset of the disease shows that the page has an obvious tendency to wither, followed by white spots on the leaves and holes in some places. When the white spot covers the whole leaf, the leaf falls directly. If you turn to the back, you will find that the back is full of mites. It is recommended to spray plants with 2000 times of 20% methamphetamine EC.

4. Ladybugs

This is the most harmful pest to Solanum nigrum. It directly uses Solanum nigrum leaves as food and, in serious cases, eats branches. Leaf defects or holes appear where the disease is now attached to ladybugs, and some leave the sunny leaf epidermis and eat the rest. At this time, be sure to spray the medicine in time, you can use 2000 times the liquid of 40% Lesbon EC.

The above diseases must be treated in time, and the residue should be taken away and incinerated to avoid infecting other plants. Daily cleaning of farmland should also be in place, and many diseases and insect pests are caused by residues. So we must pay attention to this aspect.