Early April
Pest control
1. Cut off the white powder diseased tip and the leaf roller moth, and burn it intensively. Spray 15% powder rust 1500 times liquid when it is severe.
2. Scaling rot disease, ring disease and rough skin disease. Bridge or foot joints at large wounds.
3. When the leaf miner and the leaf roller moth are seriously harmful, the control is carried out by using 25% chlorpyrifos No. 3 suspension agent 2000 times liquid or BT emulsion.
4. The main oil ring is used to control the crawling pests on the tree.
5. Spray 10% imidacloprid wettable powder 2000 times solution or 48% lesben 1000 times solution to prevent and control various aphids and treat other pests.
Underground management
1. Topdressing and watering before flowering.
2. Leveling the orchard, cultivating and cultivating, the depth of cultivating is 6-7 cm, and the soil is required to be ground after ploughing.
Tree management
1. Cut before flowering. After the flower buds sprout in spring and before flowering, the sooner the better, the better the nutrient consumption is, and the effect is not obvious. Red Fuji apple pre-flowering work: the extension branch is a flower bud of flower buds, and the number of inflorescences is determined according to the diameter of the stalks at the first inflorescence from the base, and the diameter of the stalks less than 3 mm in diameter is eliminated. 1 to 2 inflorescences are retracted in 3 to 5 mm, 3 to 4 inflorescences in diameter of 5 to 7 mm are retracted, and 5 to 7 inflorescences are retracted in diameters of 7 mm or more; The buds of the leaf buds are 30 cm in length, and the stalks are moderately strong. They should be kept uncut, and the flowers should be separated during the separation period.
2. The big tree pulls the branch open.
3. For the young trees, the branches are long and round or engraved.
4. Prepare the fistula and set up the hive.
Mid-April
Pest control
1. A serious pollen of powdery mildew, spraying 0.3-0.5 Baume sulfur sulphur mixture, or 80% Dasheng M-45 wettable powder 800 times liquid, or 15% powder rusting 1500 times liquid for prevention and treatment, and treating other diseases.
2. Spray 0.1% ~ 0.2% zinc sulfate solution to prevent and control lobular disease.
3. Spraying 400-600 times of liquid in the flowering period to prevent and control apple mildew.
4. Manually kill and trap the chafer.
5. Continue to cure rot, ring disease and rough skin disease.
Tree management
1. Collect pollen during the big balloon period and store it dry. Before the main planting variety is flowered, the bellflowers containing the cockroaches to be released are collected from the appropriate pollination varieties and taken indoors. Each hand holds 1 flower, rubbing the two flowers, causing the anther to fall off. After the anther is removed, the filaments, petals and other debris are picked up and dried indoors. Spread the collected anthers on a thin layer of paper, place them on a table or on a wooden stand, and stir them a few times to accelerate the loose powder. Be careful not to expose yourself to the sun.
2. Thinning flowers. Attention must be paid to the implementation of this measure: First, there must be a strong tree and a full flower bud. Second, all the central flowers left after flower thinning should be artificially pollinated. Third, it can only be applied in gardens with high fruit set rate and stable climatic conditions during flowering.
3. In the early stage of the flowering, the orchard releases the wall bee.
4. Artificial assisted pollination. Commonly used is the point method, and the powder method can also be used.
The method of dispensing is to add the dry untreated medicinal pollen to the filler of about 3 times of fine talcum powder or fine starch, and mix it evenly. The mixed pollen is placed in a vial, and the pollinator takes a paper stick rolled up with an old newspaper as a pollinator, and grinds one end into a pile for powdering. Use the pollinator to pick up the pollen and place it on the stigma of the flower that should be pollinated. You can order 5 to 7 times with 1 time. At the time of pollination, the number of pollination flowers per tree is roughly determined according to the amount of flowering of the pollination tree and the expected level of yield. Flowers with less flowering, all open flowers in each inflorescence should be taught; flowers with many flowers can be inflorescence, and each flower order is given 2 to 3 flowers.
In the dusting method, 100 times of pollen (filled with talcum powder) is placed in an electric duster and sprayed evenly around the tree. In the absence of a duster, the pollen with the filling can also be placed in a 2 to 3 layer gauze bag, tied with a rope, tied to a long raft, lifted up into the crown or tree stalk, gently Beat the long scorpion and shake the pollen out of the gauze bag to make it pollinate.
5. Spray 250 times borax or boric acid during the flowering period.
Late April
Pest control
1. A serious film of powdery mildew, continue to prevent and cure.
2. Artificial killing and trapping the chafer.
3. Spray 80% carbendazim 1500-2000 times liquid or 70% methyl thiophanate 700-900 times solution to prevent and control ring rot disease and anthracnose disease.
4. Scrape rot disease, ring disease and rough skin disease.
5. Spray 10% imidacloprid wettable powder 2000 times solution or 48% lesben 1000 times solution to prevent and control various aphids and treat other pests.
6. Bundle the plastic film at a base of 40 cm from the base of the trunk to form a trumpet-like shape to prevent pests from reaching the tree.
Tree management
1. It is necessary to increase the fruit setting rate and control the prosperous young trees to carry out the main ring stripping in the flowering period to 5 days after the flowering.
2. The main line of the Marshals is the first time.
3. Bridging the poorly healed and rotted disease spots in the previous year.
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