Eucalyptus planting techniques: what is eucalyptus purple spot?

What is eucalyptus purple spot? What harm does eucalyptus purple spot disease have? Is there any way to prevent and cure it? Also ask netizens to help introduce that eucalyptus purple spot is a common leaf disease in eucalyptus planting areas. The planting network has sorted out the harm and control methods of eucalyptus purple spot, which are listed below for netizens' reference. The harm of eucalyptus purple spot: at the initial stage of the onset of eucalyptus purple spot, there are scattered or dense spots on both sides of the infected leaves, and the disease spots are polygonal or irregular, purple. Disease spots can be connected into pieces. In the later stage of the disease, small granular processes are produced on the disease spot, which is the conidium of the pathogen. When a large number of spores are produced in spring, dark brown or nearly black tendril-like conidia horns form black coal dirt on the leaf surface, which is similar to the symptoms of coal fouling disease. Eucalyptus purple spot disease incidence regularity: such as in Kunming, purple spot disease can be seen throughout the year. In the first and middle of March, the conidia matured and a large number of spore horns overflowed, so that part or even most of the diseased leaves were covered with a thin layer of soot. Coal fouling disease was still common in Yongsheng County in Lijiang area in December. Although purple disease spots can be seen on diseased leaves in Kunming in winter, conidia can rarely be found. Eucalyptus purple spot control methods: 1, reduce the source of infection: timely removal of diseased leaves, fallen leaves, and centralized destruction. 2. 2. Strengthening tending and management, especially young trees, should make them grow healthily and enhance their disease resistance. 3. Chemical control: at the initial stage of the disease, the young trees were sprayed with Bordeaux solution. Click to get more eucalyptus planting techniques click to get more flower planting techniques