How much is the price of Jufeng grape per jin now? Attached control methods of diseases and insect pests
Jufeng grape is one of the grape varieties with large size, sweet taste and high yield, which is deeply loved by growers and consumers. Jufeng grape is planted in the south of China and has a strong ability to adapt to the environment. Now let's take a look at how much is the price of Jufeng grape per jin? Disease and pest control methods are attached.
How much is the price of Jufeng grape per jin now?
Now the price of Jufeng grape is 4-8 yuan per jin, which varies from place to place. From June to September, it was everywhere in the summer market, from farmers' orchards to every household's dining table. From 5 yuan per jin at the beginning of listing to 4 yuan or 3.5 yuan per jin later, the overall price of Jufeng grape is very stable, and it is such an ordinary fruit that earns farmers a lot of money.
2. control methods of diseases and insect pests of Jufeng grape
Jufeng grape is often infected by diseases in the process of growth, such as downy mildew, white rot, ear axis brown blight, gray mold, anthracnose, brown spot, powdery mildew, acid rot and so on.
The main pests are: green bug bug, grape wing moth, two-star leafhopper, thrips, small white flower beetle, grape moth and so on.
"Prevention first, integrated control" is the basic principle of grape pest control. In grape production, it is necessary to observe the occurrence and development of diseases and insect pests at any time and prevent them in advance. Comprehensive prevention and control should be based on agricultural protection and prevention measures, combined with the actual local production to implement the combination of chemical control, biological control and physical control, so as to control the occurrence of diseases and insect pests economically, safely and effectively.
1. Agricultural prevention and control
Improve the soil environment. Through loosening soil, weeding, plastic film mulching, rational irrigation and other measures to create a soil environment conducive to root growth and water-air coordination.
Balanced fertilization. Grape growth and development requires a variety of nutrients. Properly control the amount of nitrogen fertilizer, apply more phosphorus and potassium fertilizer and organic fertilizer.
Improve ventilation and light transmission conditions. In the process of grape growth, regular and reasonable pruning, timely binding, coring, removal of secondary shoots, proper thinning of leaves and pruning branches. Creating good ventilation and light transmission conditions can effectively reduce the occurrence of diseases and insect pests.
Clean the orchard. In the growing season of grapes, diseased leaves, fruits and vines should be removed in time and buried deeply.
Deep turning and weeding. The weeds in the garden are the living environment and overwintering place for diseases and pests, so they should be removed in time to reduce the damage of diseases and insect pests.
2. Physical control
The specific response and tolerance of pathogens and pests of fruit trees to temperature, spectrum, sound and so on are used to kill or repel pests. Such as the current production of virus-free grape seedlings is the use of heat treatment to remove the virus. We can also take advantage of the chemotaxis of some pests to install insecticidal lamps or use sex attractants in orchards to trap and kill pests. The method of manual capture can also be used, which is simple, effective, economical and practical.
3. Chemical control
Scientific and rational selection of pesticides, the application of advanced equipment, grasp the appropriate time for prevention and control, and adopt reasonable methods of pesticide application. Attention should be paid to reducing the number of times, dosage, concentration and safety interval of pesticides as far as possible, and the mixed agents should be reasonable, see clearly the ingredients, and do not conflict and repeat. Chemicals should be used alternately to prevent drug resistance and affect the quality and safety of grape products.
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