Disease and insect pest control of golden vein single medicine flower

Diseases

The main disease that can harm this plant is "black spot disease", and we can roughly infer its harm from the name of this disease. When the disease first starts, some small brown or almost black dots with irregular shapes will appear on the leaves of the flowers. If the condition continues to worsen, these dots will spread and eventually connect into one, forming large circular spots, and the color will turn completely black.

To prevent and control this disease, we must first cut off the affected leaves, leaves and branches and dispose of them in a centralized manner, preferably by burning them all. Next, we can spray 75% of 800 times the solution of Benomyl for prevention and control, which is very effective. In addition, we must pay special attention to ventilation during the subsequent maintenance, because this can effectively reduce the incidence of this disease.

Pests

The first type of pest is called "scale insects". This type of pest often appears in groups and has a great impact on plants. It may cause spots on the leaves, and in severe cases, it may cause the leaves to fall off. To deal with this insect, we can use 2,000 times diluted avermectin for spraying. In addition, attention should also be paid to ventilation.

The second pest is called "red spider", which is also a pest we are more familiar with. They often gather on the petioles or backs of leaves. To prevent and control this pest, we can spray a 40 percent concentration of omethoate at a concentration of one thousand to one thousand five hundred times. In addition, just like the above-mentioned pests and diseases, we also need to ventilate regularly.