Symptoms: the disease is easy to appear in the growing season. It usually invades from the wound. At the early stage of infection, water stains will appear, then it will change color, become soft and rotten, and then it will flow Brown mucus, and there will be odor, which will cause serious problems in the stem, and it will also become a source of disease endangering other plants.
Prevention and control: pay attention to the replacement of new soil, disinfect and sterilize the soil, and then prevent ponding, which requires reasonable irrigation. When the plant is found to be infected, it should be pulled out in time, then destroyed, and the root should be sprayed with Bordeaux solution, once every half month, 2-3 times in a row.
Symptoms: generally, the disease occurs at the stem node. At the beginning, it will show dark green water immersion at the root stem, accompanied by the softening of the stem node, and the internal tissue will show mucilaginous decay.
Prevention and treatment: if any disease spot is found, it shall be dug out in time, and then coated with grass and wood ash, so as to facilitate the wound healing. Then spray 800 times of 50% copper cream regularly, about once every 7-10 days, and it can be cured 3-4 times in a row.
Symptoms: in terms of insect damage, starscreams are more frequent. They will gather together, then absorb the juice inside, leading to dry stem and weak growth, which has an impact on growth.
Prevention and control: usually, the cultivation environment should be ventilated, and Omethoate can be used for spraying.
