Disease and insect pest control of black rice

Pests: Red spider mites

Red spider mites are also the most common insect pest in recent years and the main pest that harms plants. The peak period of disease is from June to August, especially when the temperature is relatively high and drought conditions occur, the reproduction rate will increase significantly. It survives mainly by sucking the sap of plants, and generally targets the branches and leaves of plants. In severe cases, it can kill the plants. However, the size of this pest is very small, most of them do not exceed 1 mm, but its reproduction amount is large.

Prevention and treatment methods

In addition to spraying with drugs, we must also pay attention to the living characteristics of the pests and take precautions before the hot summer arrives. We must keep the plants moist and cool them appropriately.

Disease: Brown spot

Brown spot disease is also called leaf blight, gray spot disease, etc. It mainly appears on the leaves of plants. In the early stage of brown spot disease, brown or gray spots will appear on the leaves, and then slowly expand until the entire leaf turns yellow and falls off. At this time, the growth of the plant will gradually slow down, and in severe cases, the plant will die. July to November is the peak period of its disease occurrence. Its disease conditions are exactly the opposite of those of insect pests. It is prone to occur under high temperature and humid conditions.

Prevention and treatment methods

When the rainy season comes, you should control watering, or reduce the amount and frequency of watering. Also, be careful not to make the environment too humid.