What to do if hoarfrost appears on the leaves of anchovy bamboo

Frost on the leaves of the plant may be powdery mildew, and it is recommended to take timely control measures.

Powdery mildew can occur from seedlings to heading. It mainly harms wheat leaves, but also stems and ears. Small yellow dots begin to appear on the leaves, which then expand into round or oval lesions with a white powdery mold layer on the surface.

In general, there are more upper blades than upper blades, and the back of the blades is more than the front. The mildew spots are dispersed separately in the early stage, and then combined into a large mildew, which can even cover the whole leaf, seriously affect photosynthesis, interfere with normal metabolism, cause premature aging, and lose yield.

Control measures: 1) Cultivation of disease-resistant varieties. Generally, varieties that are resistant to downy mildew are also resistant to powdery mildew, and varieties with thick leaves can be selected for cultivation.

2) Seed treatment: before sowing, the seeds are dried in the sun for 2-3 days a day to kill the epidermal miscellaneous bacteria, and then soaked in 55 warm water for 15 minutes, the temperature drops to room temperature and continues to soak the seeds for 4-6 hours, and then do disinfection treatment, before sowing with a new high fat film dressing, to repel underground diseases and insects, strengthen the respiration intensity, and improve the seed germination rate.

3) Strengthen cultivation and fertilizer and water management, increase phosphorus and potassium fertilizers, keep the soil moist at any time, and spray strong melons before flowering, young fruit stage and fruit expansion period to thicken the melon roots, strengthen the amount of nutrients transported, enhance the stress resistance of plants, promote the rapid development of the melon body, make the melon shape beautiful, juicy and delicious.

4) Physical control: When the central disease plant is found, it is necessary to spray the agent and add a new high-fat film in time to form a protective film to isolate the pathogenic bacteria and prevent the bacteria from spreading the infection again through wind and rain.

Anchovy bamboo. The hoarfrost on the leaves should be powdery mildew.

1.Symptoms: Powdery mildew occurs on leaves, young stems, flower stalks and buds.

Petals and other parts, the initial yellow-green irregular spots, the edge is not obvious. The lesion then expands, and powdery spots develop on the surface, and eventually numerous black spots grow there. The infected area turns gray, covering its surface in patches, with unclear edges and a stained white or pale grayish-white color.

When the damage is severe, the leaves shrink and become smaller, and the tender tips are twisted and deformed.

2.**: 15% powdery rust 1000 times liquid, 2% antimycomycin water agent 200 times liquid, spray once every 3 to 6 days, spray 3 to 6 times continuously, rinse the leaves until there is no white powder.

Leaf spot disease caused by fungi and other pathogens, easy to make the leaves local necrosis, yellow spots or plaques, severe when the whole leaf withers yellow and falls off, after being infected by mosaic virus, the leaves appear yellow and green mottled spots, should be sprayed in time to prevent and control. At this time, it is necessary to spray dimethoate oxide or malathion on the plant, usually spray the plant once a week, and spray it 3 or 4 times in a row to see the effect.

If there are not many white spots on the plant, you can wipe the leaves with a towel dipped in alcohol. **Most of the pesticides of pests and diseases are poisonous, so every time you spray the plant, you should take protective measures to prevent the agent from entering the mouth and nose, if you accidentally get the agent on your hand when spraying, you should immediately rinse it with a lot of water.

Look at the picture of this phoenix bamboo, it is suffering from severe blown cotton scale insects and malnutrition.

The causes of illness are high temperatures, poor ventilation, less fertilizer, and more water.

The solution is to cut off the dry branches and leaves and fertilize them once. Go to the flower market to buy pesticides to kill scale insects, mix water in proportion, and once twice a day for 7 days. When the insects recede, put the flowers in a brightly lit and ventilated location to prevent the insects from multiplying.

It's vitiligo. Spray the whole plant evenly with 500 times carbendazim + zeb + sodium compound nitrate aqueous solution for 5-7 days again. to control the spread. (suitable for the control of white spot disease in a variety of crops).

Cultivation method:

But the elemental environment is too poor, pests and diseases.

The possible methods of scale insect control are: mix liquor with water, the ratio is 1:2.

When treating insects, water the surface layer of the potting soil thoroughly. Scale insects begin to move at room temperature 7 in spring. It can be poured once in April, and then every half a month or so, and it is effective for 4 consecutive times.

Use 50 ml of vinegar (rice vinegar), soak a small cotton ball in vinegar, and gently rub it on the stems and leaves of the affected flowers and trees with a wet cotton ball to wipe off and kill the scale insects. This method is convenient and safe, which can not only achieve the purpose of insect control, but also make the damaged leaves green and shiny again. Gently and repeatedly rubbing the diseased plant with alcohol can remove the scale insects, and it can be removed very cleanly and thoroughly.

If you wipe the orchid leaves with alcohol, not only can you get rid of the scale insects, but also the larvae that are not clear to the naked eye, and they are completely killed. Use diesel, washing powder, water according to the ratio of :6 to adjust the mother liquor, at this time the mother liquor contains 60%, milk-like, diluted with water 30% of the oil solution, the Milan, kumquat, cycad on the scale insects carefully sprayed.

After one week, most of the scale insects changed from fresh orange to shriveled state, indicating that this method has a good control effect on scale insects.

It is estimated that there is a scale insect, and it is sprayed with 2,000 times its scale shell spirit leaves.

Lack of vitamins or water.

Clumps of bamboo, a variation of filial piety bamboo. Its plant shape is short, the green leaves are fine, and the charm is chic, like a phoenix's tail. The branch stem is slender, and the upper end of the bamboo pole is thin due to the lush branches and leaves.

The branches are dense, slender and bent downward. The leaves are small, about 3 cm long, often 20 in rows on both sides of the branches, like pinnae.

Small clumping bamboo, the diameter of the bamboo stalk is between the toothpick and the chopsticks, the leaf color is dense into a ball, the coarse is easy to grow, and the annual output of bamboo can reach 100. This bamboo is named "Guanyin bamboo" because of its rich aura, the so-called mountain has water and spirit, and there is Guanyin bamboo ball next to the temple and there is fairy energy.

Anchovy bamboo, native to southern China. It likes warm, humid and semi-shady environment, slightly poor cold resistance, is not resistant to strong light exposure, is afraid of water, should be fertile, loose and well-drained loam, and the temperature in winter is not less than 0. Anchovy bamboo is densely clustered, the bamboo trunk is dwarf, the branches and leaves are beautiful, it can absorb formaldehyde, purify the air, and is often used for potted ornamentation, decorating small courtyards and living rooms, and is also often used to make bonsai or as a low hedge material.

Lack of things, if the watering is enough, it should be what element, the white hair you said, we call it white hair, more ventilation

Anchovy bamboo is a relatively common landscape plant, which is suitable for home or office space. However, the leaves of Anchovy often show signs of yellowing, in fact, the leaves are yellow, and it is necessary to pay attention to different causes and then deal with them reasonably.

Anchovies bamboo method steps.

Anchovy bamboos love shade, if irradiated under strong light, the leaf tips are easy to be burned, resulting in the loss of water in the leaves and causing yellowing, therefore, the anchovy bamboo can be transferred to a cool place.

If the lack of nutrients in the growth process, especially the lack of fertilizer implementation, will also cause the young leaves to appear yellow and light, at this time, you can properly fertilize and water.

Applying too much fertilizer to the soil will also cause the leaves of Anchovy bamboo to turn yellow, especially the new leaves will appear dull, so we should pay attention to diluting the fertilizer in the soil, and add water to the soil to dilute it.

If the leaves are watery yellow, especially the young leaves are small and no longer grow upward, it means that there is too much water in the soil.

If the edges or tips of the leaves are dry and yellow, or even the leaves are falling off, it indicates that the soil is caused by a lack of moisture, and the soil needs to be watered in time.

If the bamboos are placed in a shady environment for a long time, the leaves will turn yellow due to the lack of light moisture, and the leaves will lack chlorophyll, and the leaves may fall after yellowing. At this point, place it in a cool, well-lit place.