Treatment of orange yellow dragon disease
1. Implement a quarantine system. The transport of seedlings must be quarantined and the diseased area seedlings and all diseased materials prohibited from entering the new and disease-free areas. Disease-free seedlings should be planted in newly opened orchards.
2. Establish a disease-free nursery and cultivate disease-free nursery stocks. Effectively, 1 pair of excellent plants should be detoxified (disturbed by stem tip detoxification or thermal detoxification) and certified to be free of bacteria; 2 to establish a germplasm nursery in the net room. ;3 establish a disease-free parent garden in isolated areas or in the net room; 4 establish a disease-free nursery in isolated areas or in the net room.
3. Diseased or suspected diseased plants should be excavated immediately and replanted with disease-free seedlings.
4, control citrus raft. Control the shoot through water and fertilizer management to reduce the propagation and spread of wood lice. The shoots were sprayed with 1-2 insecticides. Planting shelterbelts around the orchard will also hinder the movement of rafts.
5, to strengthen the cultivation and management, maintain strong tree vigor and improve resistance to disease.
6, ward reconstruction. For some orchards with serious Huanglong disease that have lost economic value, the wards should be reformed. The citrus trees in the whole orchard were completely excavated, and the wood spurs were sprayed and then replanted with disease-free citrus seedlings to transform the ward into a disease-free new district.
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