Inquiries: There are small holes in the leaves of the jujube trees, and some are shrinking. It seems that the worms have eaten, but they can't find the worms. What is going on?
Answer: There are two possibilities for similar symptoms. One is Guo Gongjia (pest), which is very small and will sneak in the daytime, evening or night. If you can see small beetles attentively, the wings are basically red and have symmetrical black dish spots. The second is a bacterial disease, often with deformed new leaves, small holes in the leaves, and yellow spots. According to the cause of targeted spraying, insecticidal can be used to sterilize streptomycin. It can also be administered in two combinations.
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