I. Quick harvest of uncut fruit
The species that have not yet been harvested, in particular sandy oranges, cologne, gold oranges, etc., should hurry to harvest the fruit so that the fruit is not overcooked。
Ii. Clean-up in a timely manner after harvest
Vegetable orchards that have been harvested have been trimmed, short and weak, condensed cross branches have been retrenched and have been cleaned up in a timely manner with insecticidal and fungicides. Heavy orchards of red spiders and mosses may choose thiomers + dicofone, or the desen ammonium + dictum drug clearing。
Iii. Fertilization by trees
(i) one timely application of high-quality organic or biological organic fertilizers ranging from 3 to 10 kg/punch + complex fat 0. 5 to 2 kg/punch to provide comprehensive nutrition for the growth of flowers and restoration of tree positions。
(ii) weak trees, with large flowers, shower one or two times to grow and grow during the period between spring and green。
(iii) leaf-faced fattening: one shot of urea + 0. 2 per cent of potassium phosphate + 0. 2 per cent of boron or any other leaf-faced fat with moderate trace elements during the curry and spring seasons。
Iv. Responsibility
Too many trees can be cut off in march。
V. Plumbs due to tree spraying
(i) sandmallow oranges, umbilical oranges, honeyfruits, gold oranges, non-nucleic wads, meadows in winzhou。
Trees with small flowers: 920+0. 3% compound fat or 0. 3% potassium phosphate or commercial leaf fertilizers with two thirds of the stinging: 15-20 days after the second。
Trees with flowers: 920+0. 3% compound fat or 0. 3% potassium phosphate dihydrogen or commercial leaf fertilizers 10-15 days after the drop of part of the first physiological fallout。
Wally
Under normal weather conditions, a single growth control agent is sprayed; in the case of prolonged rainy weather, small-year trees, etc., a secondary growth control agent is sprayed: 15 mg/l + 920 + 0. 3% potassium phosphate + 0. 2% boron, 15-20 days later。
(iii) logic
The 1st physiological fallout drops with a 1,000-fold dose of cyto-separate + 0. 4% compound fat or 0. 3% potassium phosphate or commercial leaf fertilizer, and 10-15 days with a second spray。
Vi. Shake flowers
When flowers are given away, in the event of continuous rain, they are not easily decorated, and they are attached to the skin of the young fruit for long periods of time, which both affect the light and exacerbate the fruit, and are prone to asymptomatic disease and to the injury of the horse。
Circumcision
Sugar oranges can be gravitated to green in vegetative fruit, and honeyfruits can be cut with a knife of 0 to the staggered tree one or two times; and strong trees with small flowers and excessive trees can be nicked with a knife of 2, for the purpose of controlling the summer and reducing the physical fallout。
Viii. Key technical measures for the prevention and control of major citrus diseases and pests in the spring
As a result of late harvests and sales of sandy oranges, gorns, etc., some impact on the prevention and control of citrus pests in the new year, and because february-april is a time when temperatures are rising faster in a year, heavy rainfall and humidity are extremely favourable for the reproduction of pests and pests, and because winter is not a time-bound cut-off garden, many chronic pests, e. G. Citrus spiders, citrus moths, citrus mackerel mackerel, shellworms, aphids, citrus ulsions, citrus anthrax, citrus fat spot yellow spots, citrus morbids, etc., cannot be removed through winter gardens and shears, leading to a significant accumulation of bacteria and insects in the winter, increasing the number of winter insects and insects, which will cause major or local harm to small pests this year. Early detection of early detection and control of insect sources and disease source bases are essential。
(i) citrus yellow dragon disease
The area where yellow dragon disease occurs, particularly the re-emergence zone, is used in a uniform garden-wide killing of lice once during winter clean-up, and seven days after spraying, the tree of yellow dragon disease is cut off, the tree stake is removed in a timely manner, or glyphosphorus plating at the cut-off point is treated with a black plastic bag and then the stake is covered with a rubber bag; before the spring sprouts start, the lice are sprayed once; and during the spring, the lice are sprayed twice. Optimal lice control:
1 and 25 per cent of aphid water dispersorant 4,000 times more liquid
(ii) 2. 5 per cent of high-efficiency chlorocyanate water emulsion 1000-1500 times
3, 10% of the aphids are wettable powder 1500-2000 times the fluid
4, 1. 8% avf emulsion 2000 - 3,000 times fluid, etc. New orchards must use disease-free trees that are formally produced in nurseries。
(ii) citrus ulcer disease
Spray one at 1 to 3 cm, one at 7 to 10 days, two to four in a row; and one in an adult tree after two thirds and 10, 30 and 40 days. Optional agents:
1,45% dyson ammonium water agent 500 times more liquid (with a combination of anthrax)
2, 20% of copper chloride water 600 times liquid
3,77% can kill 400-600 times more humid powder
4 or 2 per cent of chronin liquids 500 times
5 and 47% chronic oxychlorine humid powder 800 - 1,000 times more liquid
6,46. 1 per cent of copper oxide water dispersible granulates (which can kill three thousand) 1,200-1500 times
7 and 20% of zinc suspension 300 〜 500 times
Eighty-seven per cent of champions are 400-600 times wetner. Precious trees and light disease trees can be thoroughly cut off from the visible leaves in the eyes of the human body when the sun is clear, while removing the sick leaves from the discs and taking them to the garden for timely spraying。
(iii) citrus anthrax
Optional agents:
1 and 25% of meshamine water emulsion 1,000 times more liquid
(b) 500 times the amount of polybactrin sulfur suspension
3,65% of the zinc humid powder 500 times the liquid
4. 70 per cent of methyl sulphate filamentable powder 800 - 1,000 times more liquid
5,68. 75% pumps in manganese zinc water (preserveable) 1000-1500 times
6. 70 per cent of the propesian zinc humid powder 700-800 times
7 - 25% of diphenyl ether acetate cream 3,000 - 4,000 times。
(iv) yellow spots in citrus
The first was sprayed with spring leaves, the second was sprayed 15-20 days apart and the second was sprayed 2-3 days in a row. Options include:
1,68. 75% oxen manganese zinc water dispersible granules (e. G.) 1,200 times
Two or 30 per cent of benzo-propylene cream 2,000 times
3, 19 per cent oxygen. Propylazine suspension (fatal) 1,500-2000 times
4-45% dyson ammonium water agent 600 times liquid
Five, 70 per cent of the manganese zinc humid powder is 500 times greater
Six or 77 per cent can kill the powder 500 times。
(v) citrus ashilosis
The timely removal and centralization of sick flowers and fruit; the shaking of flowers; and 68. 75 per cent of gross use of pre-decompression combinations of scabies, etc. The dispersible granules of manganese zinc water (econservation) are 1000-1,500 times; 80 per cent of the manganese zinc humid powder is 600-800 times; 25 per cent of the aphid aqueous powder is 1,000-1,500 times; 70 per cent of the acetamino humid powder is 600-70 times; 40 per cent of the aroma humid powder is 600-70 times; 25 per cent of the furanamine is 1500-2000 times; 80 per cent of the acetamine humid powder is 800-1,000 times; and 40 per cent of the aroma humid powder is 600-700 times spray。
(vi) citrus spiders
The more severe orchard of red spider hair, with care to check the occurrence of red spiders on leaves, sprayed and treated in a timely manner every seven days, twice in a row, when around 2 mites per leaf were present, to reduce the density of the early spring mites. Options include:
12. 4% propyl suspension 4000-5,000 times more liquid
2. 15% md cream 1000-1500 times more
3 and 5% of dicofone emulsion 1000-1500 times more liquid
4,99% mineral oil emulsifiable concentrate 250 times more liquid (or 99% green)
5 or 20 per cent of the avulsifiable aphrodisiac suspension 100 - 2000 times
6 and 43 per cent of phenylphenol suspensions 2000-2500 times
7, 20% of the acetate is humid powder 4,000 to 4,500 times more timely。
(vii) magnolia maggots
The more damaging orchards occur in previous years, with ground sprays being carried out against newly excavated maggots three to five days before the top of the buds began to show their whiteness, in order to avoid insects laying eggs. Optional agents:
1 48% of the venomous cream 1000-2000 times the fluid
2 and 2. 5% b-cypermethrin emulsure 2000 - 3000 times liquid。
(viii) aphids or parrots
Checking the presence of aphids or ostrich horses on the ground and treating them with medication in a timely manner when the presence rate is 40-50 per cent. Options include:
1 and 10% of aphids with wettable powder 2500-3000 times more liquid
2, 1. 8% avf emulsion 4,000 times more liquid
(c) prevention and control of emulsion by 3, 20 per cent, 5 per cent gold cream by 1,000 times or 20 per cent winter cream by 1,000 to 1,500 times
4 and 2. 5% bcm cream 2000-3000 times。
(ix) pests such as insects and gold turtles
In the past years, serious orchards such as nasal worms, gold turtles, roll moths, platinum, fertilizers have been found to harm the new leaf, spraying herbs in the springs of herbs and using herbs:
1,90% trichlorfon crystals 1,000 times liquid
2 and 5 per cent of americium emulsifiable concentrate 2000 times liquid: (3) 50 per cent of thiophos-methyl emulsifiable concentrate 800 - 1,000 times liquid. Elephants and gold turtles have a more severe orchard that can spray 50 per cent of the 200-fold or 48 per cent of the thiophos-methyl on the ground during the excavation of the adult infestation, resulting in the death of the newly excavated vermin that crawls on the ground。
