An apple tree
1. Pest control.
(1) Prevention of early defoliation. Entered in September, with 400 times more antibiotics, citrate citrate 800 times or 50% of 1500 times for pueraine, every 10-15 days spray 1, even spray 2-3 times.
(2) Prevention and treatment of branch diseases. Look for frostbite, dry rot and rot spots on the branches, then scrape the dried dead tissue, and apply 10 times the 9281 or 2% solution of Corbett and Corbetdo, and dry them before applying the paint. (The paint is mixed with 1/10 of sulfur powder).
(3) Pest control. The main control objects are leafhopper moths, pear flower worms, cotton worms, boat-shaped caterpillars, and other pests. Difenoxil 3 and 1500-fold liquid are available, and the leaf-feeding pests are severely controlled by pyrethroids.
2. Fertilizer management.
(1) Top dressing under the tree. In order to promote the development of the Fuji apple fruit, increase fruit size, and promote fruit coloring, in the early September, fertilizing mainly phosphorus and potassium fertilizers, applying 50-75 kilograms per acre to the trees with more results. Acupuncture fertilization method, timely watering after fertilization.
(2) spray fertilizer on trees. Combination with medication or spray every other day for 10-15 days 300 times potassium dihydrogen phosphate plus 600 times the Huimanfeng or 800 times the photosynthetic fertilizer.
(3) Shi Ji Fei. For the early mature varieties of the Marshal and the harvested fruits of the apple tree, early preparation of fertilizer, early application of base fertilizer, can increase fertilizer utilization, increase storage of nutrients, enrich flower buds, lay good for the next year's fruit production and quality basis. Mushi Organic Fertilizer (chicken manure, livestock manure, loop manure, etc.) 3-5 cubic meters, while applying chemical fertilizers, normally full fruit trees apply 7.2-9.2 kg of pure nitrogen per acre, pure phosphorus 14-17.5 kg, pure potassium 5-6 kg.
3. Other management measures.
(1) The grass is tied to the trunk to attract pests. In early September, the grass is tied to the trunk to trap a large number of red-and-white spiders, leaf roller moths and other pests.
(2) Organize membrane bags and hanging fruit branches. Continue to trim the fruit bags so as to prevent fruit bags from cracking or affecting fruit growth. Too many hanging fruit should be suspended or standing sticks to keep them off the ground and prevent intertwining and promoting fruit coloring. Slings should be strong, sticks can be used bamboo sticks, peach branches, apricot branches or peeled willow branches, etc., must be firmly supported.
(3) pick leaves and fruit. In September, Red Fuji began to enter the coloring period, and successively removed the leaves that affected the coloring around the fruit in mid-September (to leave the petiole). The leaves were picked up for 5-7 days. When the colored surface was completely colored, the fruits could be transferred. fruit. The fruit transfer should be carried out after 10 a.m. every day. It is advisable to transfer the fruit at an angle of about 160 degrees, and the maximum is 180 degrees to prevent the fruit from being turned off.
(4) promote coloring. The coloring period of the fruit is twice that of spraying 800 times of the fruit dew or the one of the naphthalene acetic acid used 30,000 times before the harvest, and 1-2 times of the solution. It can prevent fruit drop and promote coloring.
(5) Collect fallen leaves and rotten fruit and clean or transport them out of the orchard in time to remove broken branches and dead rot.
Second, pear tree
1. Late-maturing varieties continue to monitor the occurrence of bagging pear yellow mealworms. Before harvesting, low-toxic, non-environmental pesticides were used to prevent and control pear yellow mealworms, and 10% of imidacloprid 2000-2500 dilutions were used. At the same time, attention should also be paid to pear aphids, carnivora, and pear flower nets. Autumn black spot disease was at the peak of disease incidence. Properly spray Fuxing 8000 times or fenfonomol 2000 times liquid and other agents, add helper or spreader to enhance the control effect.
2. Continue to work on pulling branches. In particular, it is highly recommended to pull the branches away before mid-September to facilitate the formation of flower buds. Other trees are also required to adjust the height of the branches in time after harvesting.
3. Post-harvest fertilization. Fertilizer should be fertilized as early as possible after harvesting (see apple tree fertilization method).
Third, peach tree
1. Base fertilizer after harvesting. Apply 3 m3 of high-quality organic fertilizer per acre, mix 10 kg of 18% phosphorous fertilizer, or apply 75 kg per acre of NPK fertilizer. Yellow leaf phenomenon can be mixed with ferrous sulfate, applied 0.5-0.75 kg per plant. Fertilization period from September to November, the sooner the better during this period.
2. Pruning and pulling branches in autumn after harvest. Focused on solving the problem of work roads, the deterioration of light in the interior, and the relocation of the resulting parts. In order to prevent the relocation of the result position, it is necessary to ensure that the light in the guilt is good, and at the same time, to control the prosperous growth of the branch, the branch can be removed from the competition branches and over the branches in the autumn to control its growth and promote the growth of the banyan twigs.
3. spray fertilizer, spray protection blade. In early September, it can be sprayed with mancozeb 600 times liquid plus 72% of streptomycin 3000 times for veterinary drugs (one half a million international units of 12.5 kilograms of water) and sprayed once every 10 days.
4. Anti-day cows and plastic gum disease. The method of controlling TianCi is to insert a 100-200 times omethoate dip soaked into the wormhole of the new insect excrement, which is blocked with external slime, and other old wormholes are also blocked with slime. Prevent gummy disease by scraping off the glue solution first, and then use 20 times liquid mycelium or methyl thiophanate emulsifiable concentrate, 9281, etc., brush, and then smear the trunk with lime sulfur, dry work should be in late September Finished before. Its formula is 1 part of lime sulfur, 1 part of digestion ash (lime bubble day and night), 0.2 parts of salt, 8-10 parts of water. Drying can play a role in disinfestation, disease prevention and antifreeze.
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