1. Symptoms: caused by the infection of M. flavum, which mainly damages leaves, branches and fruits. In the environment of high temperature and humidity, it is most likely to get sick.
2. Control methods: first, cut off the diseased branches, long branches and weak branches, and burn them intensively to reduce the source of infection. After germination of spring shoots, 1:1:200 Bordeaux solution can be sprayed. Once every 7 days, spray 2-3 times continuously to prevent the disease. If the disease has occurred, it can be treated by spraying 50% of the wettable powder 500-800 times.
1. Symptoms: caused by bacterial infection, mainly harmful to leaves. High temperature and humidity conditions are prone to disease.
2. Prevention and control methods: during maintenance, it is necessary to avoid excessive humidity and waterlogging in the environment, and timely drainage is required after rain. If the disease occurs, the sick leaves should be cut off in time, and then sprayed with 1500 times of 50% fungicide.
1. Symptoms: there are many kinds of scarabs that are harmful to bergamot, especially the scarabs with Chinese teeth. Their adults will bite the young branches and leaves, resulting in baldness.
2. Prevention and control methods: April to May is the peak period of adults, which can shake trees in the night and catch the adults falling artificially for several consecutive days. On a hot and windless sunny night, you can light a lamp to trap and kill adults.
