First of all, we should do a good job in preventing and controlling pests and diseases. We should focus on the prevention and control of anthrax and brown spot. At the same time, we should prevent bitter pox caused by calcium deficiency in fruit trees, red spots caused by bagging, and other pests such as spider mites, aphids, leaf rollers, leaf pickers, and spiny moths. Check the orchard promptly after rain and spray pesticides promptly. To prevent and control anthracnose leaf blight, the following are recommended:
For orchards with serious outbreaks, 60% sodium dichloroisocyanurate can be sprayed on the ground before application to reduce the source of bacteria and infection in the field. Lay a good foundation for prevention and control. Note: Anthrax leaf blight has the characteristics of rapid infection, large spore formation, and acute onset. The treatment interval should be shortened to 4-5 days, and the treatment should be applied 2-3 times continuously. Attention should be paid to the alternate use of drugs; when spraying drugs, attention must be paid to improving the atomization degree and spraying quality of the drugs, so that the branches and leaves can be used evenly in the positive and negative directions, and the ground should also be used.
How to manage orchards after a storm, these points need to be paid attention to.
1. Drain water in time. When there is stagnant water in the garden, the fruit trees will be soaked in water for a long time, which will cause a large number of root systems to die due to lack of oxygen. Therefore, attention should be paid to timely drainage after rain. When the soil is slightly dry, the soil should be turned to improve its air permeability.
2. Check the fruit bag. Check whether the mouth of the fruit bag is firm, drain the accumulated water in the fruit bag in time, and expand the ventilation opening appropriately to prevent apples from getting sunburned due to high temperature and humidity.
3. Mow the grass in time. Weeds in the garden are bound to grow quickly after rain. Mowing should be done according to the height of the grass. Avoid excessive weeds that lead to poor ventilation in the orchard, which can exacerbate the spread of disease and infection.
4. Top seasoning. Orchards that are under-fertilized early can be fertilized by rainfall. This top dressing should strictly control the amount of nitrogen fertilizer, use high potassium fertilizer as the main raw material, supplemented by medium and trace element fertilizers.
When such a natural disaster occurs, taking relevant measures in a timely manner is key.