Disease and insect pest control methods of yellow-bracted arrowroot

Sclerotium rolfsii

White rot occurs frequently. The main reason for its occurrence is that we water too much, causing the soil to be too moist for a long time, or lack of nutrients for a long time, which will lead to the occurrence of this disease. The most serious period of the disease is from July to August, when the weather is hot. In the early stage of the disease, drugs can be used for sterilization, and the diseased plants can be removed and new soil can be used to plant plants that are not affected by the disease.

Leaf spot

The highest probability of this disease occurring is from September to October and March of the following year. The disease starts from the leaves. If it is serious, it will cause large areas of leaves to turn yellow and then fall off. The main cause of the disease is poor care, coupled with poor ventilation in the environment. In addition to using drugs for sterilization when the disease occurs, it is also necessary to apply appropriate amounts of fertilizer to increase the plant's resistance.

Scale Insects and Red Spiders

Generally, these two types of insects will appear when ventilation is poor, and under high temperature and high humidity conditions. It is not easy to prevent and control scale insects. It is necessary to spray them with drugs multiple times in succession, and at the same time, ventilation must be strengthened. Red spiders reproduce quickly. In addition to normal drug spraying, you can also frequently spray water on the leaves, which can effectively inhibit its reproduction.