Fugui bamboo has leaf spot disease, what medicine can cure it

Try a Manhattan iodine preparation fungicide.

Reason: There are rust spots on the Fugui bamboo, which may be caused by fungal infection, that is, leaf spot, and some rust spots will appear on the leaves.

Measures: After finding that Fugui bamboo is infected with disease, it is necessary to strengthen ventilation, promote the normal circulation of air, maintain ventilation and light transmission, alleviate the condition, and at the beginning of the disease, you can spray fungicides such as ethylphosphine aluminum manganese zinc and Ribangcilla to achieve the effect of removing the disease.

In addition to being infected with diseases, if you do not pay attention to the method in maintenance, it can also be infected with insect pests, which can also cause problems with the leaves.

Measures: Remove the diseased leaves infected with insect pests in time, gather them and burn them, and then spray the corresponding agents according to the symptoms to ** pests.

If the water quality is not clean, it will cause a lot of problems, and it is not easy to rot, and the whole growth condition is affected, and rust spots naturally grow on the leaves.

Measures: If the water is found to be unclean and turbid, it needs to be poured out immediately, then cleaned and disinfected, and replaced with new water quality. After that, change the water regularly, and the frequency of water changes can be increased in the summer.

Solution: Carefully inspect the leaves to determine what kind of pest it is, and then use the corresponding pesticide to eliminate it. If the insect infestation is not serious and the number is relatively small, use a rag to remove all the insects. Pay attention to the condition of the leaves in the follow-up to prevent the resurgence of insect infestation.

white spots caused by the disease, increase ventilation and sterilize.

When leaf spot, stem rot and other diseases occur in Fugui bamboo, brown or white spots will also appear on the leaves. It needs to be treated in time, otherwise the disease area will become larger and larger, which will directly affect the healthy growth of plants.

Solution: Move Fugui bamboo to a place with better ventilation and strengthen ventilation. When the disease is not serious, cut off the damaged leaves; When the disease is severe, spray pesticides to prevent and control it.

Fugui bamboo likes warmth, when the temperature drops to 5, it should be indoors, and the room temperature is kept above 5. In summer and early autumn, avoid scorching sun exposure, from late autumn to the next spring, it can be placed within 2m of scattered light in a sufficient place, and the leaf color will lose its luster if the light is too shaded.

If the bamboo rots and turns yellow, it is generally caused by insufficient light, poor ventilation, and no water change for a long time. When symptoms are not obvious, it can be solved by changing the water frequently and placing it in a well-ventilated and sunny place; In summer, the foliar spray of Fugui bamboo should be maintained in a humid environment.

The leaves of Fugui bamboo appear white spots, which may be caused by not changing the water for a long time, and it is necessary to change the water regularly during maintenance, leaving a part of the old water and adding a part of the new water each time. It may also be caused by insect infestation, and measures should be taken in time after discovery, first manually captured, and then sprayed**. It may also be caused by a lack of fertilizer, so you need to apply fertilizer reasonably to avoid splashing fertilizer on the leaves.

The cause of this phenomenon is most likely an infection with pathogenic bacteria. The disease is usually transmitted through the wound and can be exacerbated in humid conditions. In Guangdong, the frequency of the disease is highest from May to September, because the climate temperature is relatively high during this time, and the humidity in the air is also very high, and in the summer, typhoons and showers hit the wounds, and then let the disease spread quickly.

The disease begins with brown spots and causes the edges of the leaves to be yellow. After infection, its markings will be nearly round, the middle of the leaf will appear gray, and the edge of the leaf will be black-brown. If the environment is too humid, the lesions on its leaves will also grow black particles.

1.If you have several bamboos and their leaves are relatively luxuriant, it is best to breed them separately and not too densely. Place them in a well-ventilated area with bright scattered light.

2.In the early stage of the disease, you can choose to use 3000 times of gram bacteria powder containing 42 percent, or 1000 times of hydroxymycin containing 88 percent, or 800 times of copper ammonia containing 25 percent. Spray these potions on the diseased leaves two or three times a week.

3.If it is already severe, then cut off the leaves that have been contaminated with the germ.

"Chinese bamboo culture, up and down 5,000 years, clothing, food, housing and transportation, everywhere bamboo connected", bamboo has become a fashion and a trend at present. Looking at its verdant and upright, light posture, and standing proudly in the wind and snow, it gives people the impression of a "gentleman" who is indomitable and graceful. Fugui bamboo, because of its meaning of "flowers bloom rich, bamboo report peace", 365 days a year verdant green, maintenance is very simple and attract people's attention, every family will plant a pot, pray for good wishes.

But in the process of maintenance, many novices have encountered such a problem, the newly bought rich bamboo is green and lush, put it in the water for a short time, the branches and leaves appear yellow, withered, and some even appear black spots, the roots are infected and blackened, I don't know what's going on? Let's share with you where the problem is and how to deal with it, only 3 ways to solve the problem.

Symptoms <>

Gray-brown lesions appear at the tips or margins of the leaves, the lesions are irregular or semicircular, **gray-white, the edges are dark brown, with yellow halos on the outside, and small black spots scattered on them; The leaves at the base of the seedling stem are yellowed, and the inside of the stem turns red; After picking bamboo, the head becomes soft and rotten, and the foot buds are not pumped or the buds are uneven.

Causes.

Because the newly purchased Fugui bamboo does not have long roots, the plant nutrients are not enough, and yellow leaves will occur. The leaf spot fungus is mainly infected by wounds, and the disease is serious under humid conditions, and the yellow leaves will dry up when exposed to intense direct sunlight. If you don't see light in the shade for a long time, the new leaves will be tender and yellow, and the leaves will be dull.

Measures to address.

1. Choose carefully, choose fresh bamboo that is robust and well-organized, does not carry germs, and has not been rained.

2. The incision should be disinfected in time, and the incision under the seedlings can be soaked for 24 hours with 3000 times of 42% gram bacteria powder or 1000 times of 88% hydrated sulfin.

3. Prevent the plant from being too dense, accept sunlight in a timely manner, keep ventilation, and add nutrients to promote rooting. Rusty iron nails that are not usually used at home or ferrous sulfate purchased in florists can increase iron, promote the growth of Fugui bamboo, and prevent the above diseases.

It can be controlled by watering, turning the soil, spraying insect repellent, spraying pesticides, spraying nutrient solution and fertilizing.

Be sure to spray pesticides in time, but also to properly strengthen ventilation, do not plant too dense, to ensure that the sun is sufficient.

Through the correct management methods, as well as regular fertilization and watering, to understand the prevention and control methods of diseases, pay attention to the prevention and control skills.

There are many reasons for the yellowing and dryness of the leaves of Fugui bamboo, and relative measures should be taken according to the specific reasons. If the sun is too strong, move to a cool place and water it appropriately to cool down. If it is caused by lack of water, it should be replenished in time and the soil should be watered thoroughly.

If the concentration of fertilizer is too much or too much, caused by burning the root system, it should be depotted, pruned with rotten roots, and replanted with soil.

1. Reduce light.

Reason: It is a shade-tolerant plant that can tolerate faint scattered light, but cannot tolerate strong light. If it is placed in a place with strong sunlight during maintenance, it will sunburn the leaves, which will turn yellow, and will wither and fall off over time.

Solution: If the light is too strong, move to a cool place in time, preferably a place with weak light, and then water it appropriately to cool down the temperature, and it will soon recover. Pay attention to the position during the later maintenance, and do not put it in strong light.

2. Increase the amount of water.

Reason: The yellowing of its leaves is most likely caused by lack of water, because once the water is deprived, photosynthesis cannot be carried out, resulting in yellowing.

Solution: In the event of this phenomenon, water should be replenished immediately, and at this time, it should be watered thoroughly, and water can flow out from the bottom of the pot, so that the soil and roots can fully absorb the water. In the later stage of maintenance, there should be no shortage of water, and water should be replenished in time when it is found to be dry, but there can be no stagnant water.

3. Appropriate fertilization.

Reason: When fertilizing, the fertilizer should not be excessive, and the concentration should not be too large, otherwise it will burn the root system, causing the top of the new leaf to dry up, the leaf surface will not be shiny, and the old leaves will turn yellow, wilt or even fall off.

Solution: If it is caused by fertilization, it should be depotted, check the root system, and cut off the rotten roots. Then disinfect and dry the wound and replant it in soil. Fertilization is selected with fertile leaf water-soluble fertilizer.

What to do with the yellow leaves of rich bamboo? Learn these tricks, deal with them easily, and the yellow leaves and rotten roots can be solved.

1. It may be because its leaves have not been pruned for a long time, the space is too small, and they block each other, hindering the light, so it rots. 2. If it is a way of water cultivation, if you don't change the water for a long time, the water will be very turbid, and it will be difficult for the roots to absorb nutrients, oxygen and other substances, and the leaves will rot and turn yellow, which will have a very adverse impact on its growth.

3. It may be that it can not adapt to the way of water culture, although it can be water raised, but the effect of soil culture will be better, a lot of water culture bamboo will drop leaves, rotten leaves, etc., you need to help it change the way of breeding. 4. If it is raised in the soil and then rotten leaves, then it may be that the nutrients in the soil are not enough. It is also possible that the soil is cemented, its roots are unable to absorb nutrients, and the leaves will rot.