Eucalyptus planting techniques: what is eucalyptus wilt?

What is eucalyptus wilt? What causes eucalyptus wilt? Is there any way to prevent and cure it? Ask experienced netizens to help introduce the harm, causes and control methods of eucalyptus Fusarium wilt in the farming network, which are listed below for netizens' reference. The harm of eucalyptus Fusarium wilt: eucalyptus Fusarium wilt mainly harms the vascular bundles of the root and stem of the plant, hinders the transport, causes the crown and branches to wilt, until withered, and finally the whole plant dies. The infected eucalyptus first dried up from the tip of the branch and gradually extended to the pruning, and the leaves on it also became brown and withered. The whole plant withered and died when the disease was serious. There are no obvious symptoms on the surface of tree cadres, and green-brown discoloration stripes can be seen on the annual rings of sapwood on the cross section of the trunk. During the longitudinal section, the stripe spread upward from the root. The dark brown mildew layer can grow after the profile is moistened for 3-5 days, which is the conidiophores and conidia of the pathogen. The cause of eucalyptus Fusarium wilt: the pathogen of eucalyptus Fusarium wilt is soil habitation bacteria, saprophytic life in soil, overwintering with chlamydospores in soil or tree trunk, invading from underground roots in the following year, and then spreading upward. In autumn, a large number of conidia are produced after the bark falls off, and the conidia are transmitted by insects or other animals. The hyphae can spread in the ducts, clog the ducts and secrete toxins, causing trees to wilt. Low-lying terrain, high soil moisture, easy to occur. Therefore, eucalyptus trees near the house, ditch and paddy field often suffer from the disease. When the soil is slightly alkaline and there are many nematodes, the disease is often serious. The control methods of eucalyptus wilt are as follows: 1. Cut and burn the diseased plants, and then disinfect the soil with 200 times formalin solution. 2. Control underground pests. 3. Strictly carry out seedling quarantine and strictly prohibit the use of diseased seedlings to plant trees. Click to get more eucalyptus planting techniques click to get more flower planting techniques