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Camellia oleifera bud disease is also known as tea cake disease, leaf swelling disease, etc. It is mainly distributed in the Camellia oleifera production areas in the provinces south of the Yangtze River. In Guangxi, the common disease is large-leaf type of Camellia oleifera, such as Luchuan Camellia oleifera (Camellia oleifera) and Bobai Camellia oleifera. The small leaf types are medium-fruited and small-fruited Camellia oleifera, such as ordinary Camellia oleifera, Camellia oleifera microfruit, and Camellia oleifera (also known as tea plum) and so on.
Distribution and hazards.
Camellia oleifera bud disease is also known as tea cake disease, leaf swelling disease, etc. It is mainly distributed in the Camellia oleifera production areas in the provinces south of the Yangtze River. In Guangxi, the common disease is large-leaf type of Camellia oleifera, such as Luchuan Camellia oleifera (Camellia oleifera) and Bobai Camellia oleifera. The small leaf types are medium-fruited and small-fruited Camellia oleifera, such as ordinary Camellia oleifera, Camellia oleifera microfruit, and Camellia oleifera (also known as tea plum) and so on.
Symptom. This disease is mainly harmful to flower buds, leaf buds, young leaves and young fruits, resulting in hypertrophy and deformation symptoms. Symptoms vary slightly depending on the organ and time of onset.
The main form of pathogen infection is that the disease does not occur in the year of pathogen infection, and the disease occurs only after the summer, and its symptoms are integral. The ovary and young fruits swell into a peach shape, generally 5 8 cm in diameter, and the largest diameter is 12 5 cm; Leaf bud or young leaf damage is often manifested as a cluster of leaves of several leaves or whole young shoots, forming a fat ear. Symptoms usually begin with a light reddish-brown or pale rose-purple surface with yellowish-green interspersions.
After a certain period of time, the epidermis cracks and falls off, revealing a grayish-white outer basidioderm, and the spores scatter. Finally, the outer basidioderm is contaminated by mold and turns dark black, and the diseased part dries up and shrinks, and the branches are hung for a long time (about 1 year) without falling off.
The secondary pathogenesis is in the late stage of the peak of the disease, about late March, which is caused by the pathogen infection of pale green to green leaves, and its symptoms are often localized. The diseased leaves form round spots of about 1 cm, one leaf has 1 3 pieces, and some 2 3 pieces are connected to form large spots. The plaques are thicker than the normal part of the leaf, the surface is slightly depressed, purplish-red or light green; The back is slightly raised, pinkish-yellow or smoth-gray.
Eventually, the patches dry up and turn black, often causing defoliation.
Prevention and control methods. According to the test results, more than 72% of the control effect can be obtained by removing the diseased species and burning or burying them before the basidiospores mature and scatter. Spray 1:1 during onset if necessary
1:100 Bordeaux liquid or 500 times Dixon liquid can obtain more than 75% and 62% control effects respectively.
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Natural drops won't, but if they drop a lot, they will have an effect.
Camellia buds, there are mainly the following four reasons, the first is improper watering, the soil is too wet or too dry, will cause camellia buds, usually to wait for the soil to be semi-dry and watered.
The second is that the nutrients are insufficient, and the buds will fall if the nutrition is not good, so it is necessary to fertilize and thin the buds in time.
The third is that too much fertilization will cause fertilizer damage to fall flower buds, so thin fertilizer should be applied frequently.
Fourth, the environment changes too suddenly, the temperature is too high and too low to fall off the buds, to ensure that the maintenance temperature is 0-35.
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Is it the fruit of the tea tree or something similar to a fig? Is it toxic?
It is the seed of the tea tree.
There is a kind of tea oil tree (locally also called tea tree) fruit, commonly known as tea seeds, tea seeds squeezed out of the oil called tea oil, it is fragrant and delicious, nutritious, is the main edible oil of Jiangxi, Hunan people.
There is also the fruit of the tea tree, which is also useful in folklore.
Some people explained: tea tree fruit - one of the main raw materials for refining tea tree oil, in Australia, tea tree oil is known as the "magic liquid", it has the effect of balancing oil secretion, astringent pores, and relieving acne conditions.
I can't say if it's poisonous or not, but I know that the tea cake after oil extraction is a good material for poisoning fish. Because nothing will happen to a person who eats a fish that has been poisoned by tea cakes. It is also said that it is not poisonous, because it can be used for beauty or medicinal purposes.
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Camellia oleifera is not a tea tree, and the Camellia oleifera tree cannot produce tea leaves.
The fruit of the Camellia oleifera tree is called Camellia oleifera fruit, not tea fruit.
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Angiosperms bloom and bear fruit.
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Dear, hello, how to make Camellia oleifera buds fall off: 1Soak the camellia buds in warm water to allow them to swell so that they can fall off.
2.Boil the camellia buds in boiling water to allow them to swell so that they can fall off. 3.
Put the camellia buds in warm water and add a little white vinegar to swell them so they can fall off. 4.Put the camellia buds in warm water and add a little sugar to make them swell so they can fall off.
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Summary. Pro, 1It is best to graft in March-June, so that the effect is best.
2.The rootstock branch was selected in the low-yield forest of Camellia oleifera with vigorous growth and no diseases and pests in 15-35 years.
3.The scion of the same rootstock must be collected from the mother trees with similar flowering period and similar growth, so that the grafted canopy development is balanced.
4.Grafting grafting commonly uses broken anvil branch peeling grafting and cambium docking method. After that, wrap the interface with a plastic film tape, and then wrap the plastic film for moisturizing and the kraft paper for shading.
5.After that, it should be managed properly.
How to make the fruit of the Camellia oleifera tree thin.
Hello dear, your question has been received, here is a full answer for you, please be patient!
Pro, 1It is best to graft in March and June, so that the effect is best. 2.
The rootstock branch was selected in the low-yield forest of Camellia oleifera, and the 15-35 years of endogenous growth and no diseases and pests were selected. 3.The scion of the same rootstock must be collected from the mother trees with similar flowering period and similar growth, so that the grafted canopy development is balanced.
4.Grafting grafting commonly uses broken anvil branch peeling grafting and cambium docking method. After that, wrap the interface with a plastic film tape, and then wrap the plastic film for moisturizing and the kraft paper for shading the belt.
5.After that, it should be managed properly.
Camellia oleifera is easy to sell, the price is tens of yuan and 1 catty, there is money, praise.
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