Wang Peikai
Bayberry management technology points
Bayberry management period to appropriate amount of fertilizer, usually three times a year to give it fertilizer, nutrients are sufficient it can grow better, the result. It is also necessary to prune in time, to leave the strong and weak, and to find dead branches, sick and weak branches, crossed branches, and overlapping branches should also be cut off in time. Every year, when the flower buds are differentiated, they should be timely flower thinning, and the fruits should be thinned in time to ensure better results. In addition, the fruit will ripen between early June and early July and should be harvested in time.
It is to be fattened three times a year.
The first time is two or three months before germination, mainly potassium fertilizer, combined with nitrogen fertilizer. The second time to strengthen the fertilizer should be in the middle of May, more accelerated potash fertilizer. The third time was in June and July after fruit picking, organic fertilizer was mainly used, combined with nitrogen fertilizer, to supplement the nutrients consumed by flowering and fruiting.
Second, during the management of plastic trimming, it is necessary to timely trim and prune, mainly in accordance with the method of removing the strong and leaving the weak. Usually found that there are dead branches, sick and weak branches, crossed branches, overlapping branches should also be cut off in time to reduce nutrient consumption and promote faster recovery. In addition, pay attention to the pruned branches in time to clean up the outside of the garden to reduce eggs and germs.
Third, the flower buds of the flower buds of the flower and fruit thinning fruit began to differentiate between February and the middle of March every year, and the flowers should be treated in time to reduce nutrient consumption. It is also necessary to sort out the fruit in time, leaving two fruits on each fruit branch, too much will reduce the quality of the fruit.
Fourth, the fruit of the timely harvest of bayberry will usually ripen between early June and early July, if it is easy to fall after ripening, it should be picked in time. Harvesting is best carried out in batches, and when ripe fruit is found, it is harvested first, which can reduce losses. In addition, the harvest time is preferably in the morning or in the evening.
1. In June, after picking the bayberry, spray 20% longke average 500 times plus methyl thiophex 800 times to prevent the wound of the bayberry tree from being infected by bacteria and brown spot disease when picking.
2. In August, the southeast coast is in the typhoon season, and the wounds affected by the typhoon are infected by bacteria and brown spot disease, so after the typhoon invasion, it is necessary to spray 20% Longke 500 times plus methyl thiophex 800 times in time.
3. In July and September every year, it is necessary to spray paclobutrazol on bayberry trees, and 15% paclobutrazol wettable powder can be sprayed once a month for 300-400 times liquid. After application, it can effectively control the growth of branches, which is conducive to the formation of flower buds, promotes flowering and fruiting, and effectively improves yield.
4. It is recommended that fruit growers can spray 0.1% fluid boron or other boron fertilizer solution on the foliar surface after flower bud germination, flowering period and fruit harvesting, to preserve flowers and fruits, promote the differentiation of flower buds, promote the occurrence of spring and summer shoots, achieve annual high yield, improve fruit quality, and reduce the phenomenon of large and small annual results.
5. Bayberry curl moth.
Bayberry leaf curl moth, commonly known as leaf curling insect. Occurs twice a year, from the end of May to the middle of June and july to August. The larvae spit silk at the end of the primary young leaf or the edge of the young leaf, and the leaves are in the form of insect bags, and they sneak in the leaves to eat the flesh of the leaves, so that the new shoots of the bayberry are harmful and the tree is weakened.
Long Kejun - Plant Protection Product Contribution Award.
Prevention and control methods:
In the stage of larval occurrence, use 80% dichlorvos 1000 times; 50% borer pine emulsion 1000 times liquid, or 5% cypermethrin emulsion 5-10 PPM.
6. Oysters and oysters.
Oysters harm arbutus branches, causing entire branches or entire trees to die. Oysters spawn on the leaves, and the first nymphs generally hatch in late May to early July.
(1) Seize the first generation of nymphs in full incubation period to spray 1000 times liquid or quick culling 1000 times liquid (spray immediately after fruit picking, can not be sprayed during the fruit hanging period).
(2) In late February to early March, use 50 times to kill the oyster (1 kg of extermination of the oyster plus 3 two alkalis to flush 50 kg of water).
6. Termites.
Termite moths eroded the root neck and xylem of the trunk, and built holes in the cortex, causing damage to the trunk and main root system, resulting in the death of the tree body.
Prevention and control methods:
(1) Artificial booby-trap. Choose the food that termites like to eat, such as pine, sugarcane, wolf dust, etc., stack on the ground around the termite damage, maintain a certain amount of water, and spray it with antericil or chlordane water agent when termites are more enticed.
(2) Bagasse is tied into powder, mixed with anticle, put into a breathable film bag, placed scattered on the ground of the bayberry tree, and then pressed with 1 to 2 stones.
(3) When colonizing bayberry, dip the roots with mud and tea cake flour.
7. Branch pest (Tianniu popcorn)
The main cadres in the arbutus tree near the surface of the ground are harmful, causing the death of the whole plant.
Control method: Remove weeds around the main trunk.
(1) The main trunk is whitened, with 5 kg of lime, 0.5 kg of sulfur, 100 g of salt, 100 g of animal oil, and the appropriate amount of water is adjusted into a paste and coated white.
(2) Hook into wood larvae.
(3) Use a disposable syringe to inject 80% of the dichlorvos stock solution into the worm hole and then seal the insect removal channel with mud.
Long Kejun (copper of thiamethia), specializing in the prevention and control of bacterial diseases.
6. Bayberry cancer and swelling disease
Bayberry cancer and swelling disease, commonly known as "bayberry sores", is the main disease on the small branches and trunks of bayberry. The diseased part is enlarged, forming a tumor with a rough surface, and after the shoots are killed, small round tumors are formed, and the branches above the tumor die. The development of a large number of tumors on the trunk causes the whole plant to die.
(1) Pharmaceutical prevention and control: 3 to 4 months, before the germs in the tumor are transmitted, scrape off the disease spots with a knife, apply 200 times the antibacterial agent 402, and also dig a small hole in the fork of the trunk of the diseased tree to drip 402 liquid medicine.
(2) Prune the diseased branch (required to be performed before the new shoots are extracted) and burn them.
(3) Spray wet branches every time you spray fungicide pesticides, and do not wear leather shoes on the tree when picking bayberry.
Long Kejun, quality crops - excellent fungicide.
8. Arbutus root rot
Arbutus root rot is a new disease found on bayberry in the 90s. The most obvious symptom of the disease is rotten roots in the ground, resulting in the wilting of the upper branches and leaves of the ground. The longitudinal infestation order of the excavated root dissected disease tissue is the young root and tender root, the nodule → small roots→ the large root → the neck → the upper part of the ground; the transverse infection order is from the xylem around the medulla to the surrounding area. After the onset of the disease, the branches and leaves of the trees are rapidly withered, the abundant trees with smaller canopy only take a few days from the onset of disease to the whole tree wilt and die in the high temperature summer and autumn, and the old trees with tall crowns can only maintain about 1 year from illness to death. Arbutus root rot is the most common disease in trees at the fruiting stage, and the symptoms of the fastest death rate are the fastest in July to August after fruit picking, and the well-managed and lush trees also die of disease.
Long Kejun (copper of Thiamethia).
The disease is infested by a worldwide distribution fungus (pathogenic bacteria for Staphylococcus stamatis).
(1) Garden selection, according to the investigation of several pathogenesis gardens, most of them occur in low-lying places with low soil organic quality content and easy to accumulate water, and the original vegetation crops in the garden are round hair grass. Therefore, avoid when choosing a garden.
(2) Pharmaceutical control: According to the test, a plant is applied 0.5 kg to 1 kg 70% tolbrin or 50% carbendazim, plus: each plant 20% Longke is 100 grams, together the prevention and control effect is good, the specific method is to turn the pine soil under the bayberry tree, the depth is 15 to 30 cm, the range is the root neck to the canopy dripping line, the agent is evenly spread on the loose soil, and then the LongKejun 100 kg liquid is poured into the root and then overturned the soil.
(3) Bayberry root rot is caused by root infection, and then cause the appearance of aboveground symptoms, once the aboveground symptoms appear (green wither) has been a seriously diseased tree, according to the test, the heavy disease tree administration has no control effect, the condition of moderate has a good prevention and control effect, the prevention and control effect of light disease trees is ideal. Therefore, according to the soil type and tree age, it is necessary to check diligently, find that the diseased plants are prevented and controlled as early as possible, and focus on prevention, cure early and reduce losses.