Occurrence and Control of Yellow Peach Diseases
1. Peach leaf shrinking disease: the occurrence of the disease is closely related to the climate in early spring, such as low temperature (10 ~ 16 °C), long duration, high humidity and serious disease. When the temperature is above 21 °C, the disease basically stops developing.
2. Peach bacterial perforation: the pathogen of the disease overwinters in the diseased tissues of branches. After the beginning of spring, with the increase of temperature, the bacteria in the diseased tissue began to move. After the peach tree blossomed, the diseased spot epidermis ruptured, the diseased spot overflowed from the diseased tissue, and the bacteria spread through wind, rain and insects.
3. Peach brown rot: the disease is the main disease of peach fruit. If the spring (flowering) is low temperature, more rainfall and high humidity, the flower is easy to be killed. Secondly, the fruit can be damaged from infancy to maturity, but the closer the fruit is to the ripening stage, the more serious the damage is.
4. Peach anthracnose: this disease is also one of the main diseases on peach fruit. Under the condition of high humidity, the disease occurs seriously. If peach trees encounter low temperature and heavy rain during flowering and young fruit stage, the disease will be serious in warm, rainy and high humid environment during fruit ripening. In view of the occurrence of the appeal disease, the prevention and control strategy should be adopted in the prevention and control. Once the symptoms are shown, the quality and yield will be reduced. For this reason, we must strive for the initiative, while grasping the appropriate time for pesticide control, timely prevention and control, control and reduce the occurrence of diseases.
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Cultivation techniques of Kate Apricot in simple plastic greenhouse
The mature period of Kate apricot cultivation in simple plastic greenhouse is 30-40 days earlier than that in open field, and the economic benefit is increased by 15-20 times. 1. The structure of the simple plastic greenhouse is a north-south arch greenhouse with a span of 10 meters, a length of 60 meters, a roof height of 2.5 meters and a shoulder height of 1.5 meters. Reinforced concrete columns are used as columns and bamboo poles are used as arches and suspended beams. A total of 5 rows of columns, the main column between the rows of 2.5 meters. The distance between the side columns and the middle three rows of columns is 1 meter and 3 meters respectively. Above the middle three rows of columns, respectively.
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How to control the shoot and promote the peach blossom
The florists of many kinds of peach blossoms called to ask how to make the peach blossoms stop growing and form more buds. The main reason affecting flower bud differentiation is the contradiction between reproductive growth and vegetative growth. When vegetative growth is too prosperous, it will seriously affect reproductive growth, that is, flower bud differentiation. Therefore, in the period of flower bud differentiation (from late May to before defoliation), attention must be paid to the balance between them in order to ensure the normal differentiation of flower buds. 1. From late May to June, peel off the top of 10-12 leaves in autumn shoots to promote flower bud differentiation, promote branching, or spray control.
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