The latest common diseases of avocado and their control

Avocado belongs to deciduous trees, distributed in various tropical regions, it contains very rich fat, is a relatively important oil crop, is widely used to make butter and soap. In addition to these industrial supplies, avocado also contains extremely rich nutrients, such as protein, vitamins and so on. It has a series of effects such as anti-aging, breast enhancement and beauty, attracting a large number of people to plant. But do you know what diseases can occur during planting? How can these diseases be prevented? Let's take a look together!

1. Spot disease

Characteristics: Spot disease on leaves and branches of the greatest threat, will form a lot of dry spots on the surface, so that it is like water shortage in general, dry skin. There is also a chance that the cracked seam will cause anthrax to invade. In the early stage of leaf infection, spots of different sizes will appear, and in the later stage, the color will change. In severe cases, all the leaves and branches will be patches, affecting growth and development and reducing yield.

Prevention and treatment methods: mainly to prevent the treatment of spot disease, after the disease can be used azoxystrobin and other agents sprayed on the affected place, can effectively inhibit the disease expansion.

2, small hole shell rot

Disease characteristics: fruit rot disease is mainly harmful to fruit, in the mature stage of disease, not careful observation can not be detected. After harvest, the fruit will feel obvious changes, starting to appear irregular patches on the pericarp, slowly invading the flesh and pedicel. Later, the brown liquid will flow out of the diseased spot, which is the whole fruit rotten and worthless.

Control methods: The control methods are similar to the latter two, mainly to strengthen the management of orchards and remove some things that do not belong to orchards and are not conducive to fruit tree growth. For example, diseased branches, diseased leaves and fruits, etc., the harvest time should not be selected in rainy weather to enhance the resistance of fruit trees and reduce the incidence of diseases.

3. scab disease

Characteristics of disease: scab disease mainly harms fruits. In the early stage of disease, irregular brown slightly convex spots will be produced on the surface of fruits, and gradually extend in the later stage, and the patches will gradually unite to form a whole piece. Although it has no effect on the taste and quality of avocado, it will seriously affect the appearance and reduce the value of the product. It mainly occurs in the young fruit stage of avocado and has the highest incidence in low temperature and humid environment.

Control methods: regular disinfection of orchards, excessive long branches, disease branches and other useless branches cut off. To eliminate the germs in the orchard, copper preparations such as Bordeaux mixture can be sprayed for prevention and control.

4. Anthrax

Characteristics: Anthracnose mainly damages avocado fruits, occasionally leaves and flowers also pose a certain threat. At the beginning of the disease, there will be round spots, slightly sunken, and if not treated in time, the spots will spread rapidly, and then all the spots will be connected. The fruit falls and decays later.

Prevention and control methods: timely clean up the fallen branches, sick branches and leaves in the park, reduce pathogens, reduce infection rate and morbidity. Avocado resistance is relatively weak, after harvest should also pay attention to low temperature storage and transportation. Preventing other diseases from occurring reduces damage.

The above four kinds are diseases that often occur when planting avocados. In fact, the prevention methods are almost the same, mainly based on prevention and timely cleaning of harmful substances in orchards. Do a good job of clearing the garden in winter, spray the whole garden with chemicals to eliminate winter germs and reduce the incidence of fruit trees in the coming year. For more information, please continue to pay attention to pro-agricultural network oh!