Common diseases of avocado and their control

Avocado is a deciduous tree, distributed in various tropical regions, it is very rich in fat, is a more important oil crop, is widely used in the production of butter and soap. In addition to these industrial products, avocado is also rich in nutrients, such as protein, vitamins and so on. It has a series of effects such as anti-decline, breast enhancement and cosmetology, which has attracted a large number of people to plant. But do you know what diseases will occur in the planting process? How to prevent and cure these diseases? Let's have a look!

1. Spot disease

Disease characteristics: spot disease is the greatest threat to leaves and branches, will form a lot of withered spots on the surface, making it like a lack of water, dry and cracked epidermis. The split seam is also likely to cause anthrax virus invasion, leaves infected with different sizes of spots will appear in the initial stage, later change color, serious resulting in leaves and branches are all patches, affecting growth and development, reducing yield.

Prevention and treatment: the treatment of spot disease is mainly based on prevention, azoxystrobin and other agents can be used to spray the disease, which can effectively inhibit the expansion of the disease.

2. Fruit rot of small cave shell

Disease characteristics: fruit rot is mainly harmful to the fruit, which begins to occur at the ripening stage and cannot be detected without careful observation. There are obvious changes in the fruit after harvest, and irregular patches begin to appear on the pericarp, slowly invading the pulp and pedicel. In the later stage, there will be a foul-smelling brown liquid in the disease spot, which makes the whole fruit rotten and worthless.

Prevention and control methods: its control methods are almost the same as the latter two, mainly to strengthen the management of the orchard and remove some things that do not belong to the orchard and are not conducive to the growth of fruit trees. For example, diseased branches and diseased leaves and fruits should not be harvested in overcast and rainy weather to enhance the resistance of fruit trees and reduce the incidence of diseases.

3. Scab

Disease characteristics: scab is mainly harmful to the fruit, the fruit surface will produce irregular brown slightly protruding spots at the initial stage of the disease, and gradually extend in the later stage, and the plaques gradually combine to form the whole piece. Although it does not have any effect on the taste and quality of avocado, it will seriously affect the appearance and reduce the commodity value. It mainly occurs in the young fruit stage of avocado, and the incidence is the highest in low temperature and humid environment.

Prevention and control methods: disinfect the orchard regularly and cut off useless branches such as growing branches and diseased branches. To eliminate the germs in the orchard, Bordeaux liquid and other copper preparations can be used to spray and control.

4. Anthrax

Disease characteristics: anthracnose mainly harms avocado fruit and occasionally poses a threat to leaves and flowers. At the initial stage of fruit infection, there will be round disease spots, slightly sunken, without timely treatment, the disease spots will expand rapidly, and then all the disease spots will be connected. In the later stage, the fruit will fall and rot.

Prevention and control methods: clean up the withered branches, diseased branches, leaves and fruits in the garden in time, reduce the pathogen, reduce the infection rate and incidence rate. The resistance of avocado is relatively weak, and attention should be paid to low temperature storage and transportation after harvest. Prevent the occurrence of other diseases to reduce damage.

The above four kinds are the diseases that often occur when planting avocados. In fact, the prevention and control methods are similar, mainly to prevent and clean up the harmful substances in the orchard in time. Do a good job in clearing the garden in winter and spray the whole garden with chemicals to eliminate the germs that pass the winter and reduce the incidence of fruit trees in the coming year. For more information, please continue to follow the pro-agricultural network!