What s the matter with the white cactus skin, how to remedy the black cactus?

Your cactus is not kept in the sun all the time, it is not always in the sun, if it is always in the sun, it will only be green and will not appear whitish. You put it in the shade to maintain, and the whitish can be removed.

Cacti appear "white circles", what's going on.

The blackening of the roots of the fresh palm is usually due to too much watering or too much moisture or soil deterioration, which causes the roots to rot.

The solution is to cut off the original roots, replant them, replace the original soil with sandy soil, and have a drainage hole at the bottom of the pot, which can prevent excessive watering and water soaking the cactus. Cacti that have cut their wounds must be dried before they can be planted.

Fresh human palms are drought-tolerant and not blister-tolerant. Water less on rainy days and in winter. You don't need to water too much, you can't apply too much fertilizer, and if you plant it on the balcony, you should give the cactus more sun.

After the cactus is raised for a long time, the area near the roots will gradually become lignified, that is, it will first change color and then harden.

This white spot should be lignifying. If you are sick, please amputate your limb and do a good job of disinfecting.

Fungal or bacterial infection, breaking the cell structure, cell fluid dissolving, that is, softening.

The presence of hyphae in large numbers, or spores, that is, whitening. It feels like there is a problem with the roots, the surface is dehydrated, and it feels like it will rot if it is left for a few days, if the weather is warm, it is recommended to take it out to see if there is a problem with the roots, and then transplant a larger pot after a few days of drying. Don't be like this when it's cold......Color change is essentially a chemical change.

1. Either it is the changes in its own growth and development metabolism.

2. Either it is oxidized.

It may also be that 1+2 metabolites are oxidized.

Cacti appear "white circles", what's going on.

It may be rotten, but if you touch the place where there are no thorns, if it is soft and soft, it is rotten.

It is also possible that there is a scale worm.

This is a cactus with a "scale worm".

Solution: 1. Use the insecticide mixed with quick-culling EC or Lesben EC and dichlorvos EC in a ratio of 1:l, and spray the agent 3 times in a row.

2. The scale must be treated, 750 1000 times liquid spraying, after the liquid is absorbed by the tree, the scale insect sucks the poisonous tree sap and dies, and the insecticidal effect is good.

It is recommended to use it in the afternoon when the temperature is high (the requirement is 28 32, so the temperature of the liquid medicine is fast, the scale insects are easy to be poisoned, and the waxy layer becomes soft at this temperature, which is conducive to the penetration of the liquid medicine).

There are many reasons why cacti turn yellow and soft, if it is overwatered, it is necessary to stop watering and loosen the soil; If there is a lack of light, the plants need to be moved to a sunny place; If it is too much fertilization, you need to stop fertilizing and increase the amount of watering; If the soil is not suitable, it needs to be replaced.

When cultivating cacti, be sure to control the amount of watering and keep the soil dry. Once overwatering causes water to accumulate in the potting soil, the roots of the cactus will rot and the plant will turn yellow and soft. At this time, the watering of the plants should be suspended, and the surrounding soil should be loosened and ventilation should be strengthened to accelerate the evaporation of water.

The growth of cactus requires very high light, and it needs to be maintained in a well-lit place to ensure the growth of the plant. If you leave it in a dark environment for a long time, it will seriously affect the growth of the cactus, causing it to turn yellow and soft. At this point, the cactus should be moved so that it receives plenty of light.

For the cultivation of cactus, reasonable fertilization is very critical, choose a thin liquid fertilizer to apply a small amount, once too much fertilizer or fertilizer concentration is too high, it will burn the roots of the plant, resulting in the cactus yellowing and soft. At this time, stop fertilizing the cactus and expand the watering appropriately to allow the excess fertilizer to flow out of the bottom of the pot.

When maintaining cactus potted plants, it is required to change the soil once every 1 or 2 years, if the soil is not replaced for a long time, it will lead to the occurrence of soil compaction, the roots of the cactus can not breathe normally, and the plant will also turn yellow and soft. At this time, the cactus needs to be replaced with soil and re-maintained with new potting soil.

Cactus white spots, may be a scale insect on the plant, you need to use a paper towel dipped in vinegar to wipe the leaves of the cactus repeatedly, you can also spray the cactus with a bactericide **, when maintaining the cactus, you need to let it receive all-weather natural light, but also need to control watering to maintain the normal growth of the cactus.

1. Reasons

The leaves of the cactus have white spots, which may be the plant is eroded by scale insects, this pest will suck the juice of the cactus, make its leaves dry and yellow, and will also flow excrement on the cactus, this excrement will make the plant infected with diseases, and it needs to be manually dewormed immediately, so that the cactus can quickly recover its health.

2. Manual insect control

Cactus has white spots, you need to mix liquor and water in a ratio of 1:2, and then use a cotton swab to put it into the wine, and then wipe the cactus repeatedly to wipe off the pests, you can also use a paper towel dipped in vinegar to wipe off the pests on the cactus, this method is simple and safe, and will not affect the growth of cactus.

3. Chemical pesticide

When breeding cactus, if you find that there are white spots on the plant, you can spray it with fungicide, you need to spray it every other week to make the cactus grow healthily, you can also use washing powder, diesel fuel and water to: 10:6 mixture to make a solution, and then spray the pests on the cactus to maintain its normal growth.

4. Lighting conditions

Cactus is a sun-loving plant, when breeding cactus, it needs to be placed in a bright place, so that the plant receives all-weather natural light, so that the probability of cactus infection is reduced, and it is also necessary to open the window every morning and evening to make indoor air circulation, provide a suitable environment for the growth of cactus, and promote its healthy growth.

1. If the cactus is shriveled and the branches and leaves droop, it indicates that the cactus is seriously short of water, and the watering times should be increased in time to allow the cactus plants to fully absorb water. Until the soil is completely soaked and there is a water overflow at the bottom of the pot.

2. The light time can be increased appropriately, if the light is insufficient for a long time, it may lead to yellowing of cactus plants and leaves, and the cactus can be moved to a place with high light intensity during the maintenance process, so that the plants can carry out sufficient photosynthesis. But if it is yellow and shriveled, it may be a lack of nutrients in the roots caused by the early drought, watering appropriately, do not let it develop, if it is serious, it will not be saved.

3. Cactus is a drought-tolerant plant and is not resistant to waterlogging. If it is shriveled up due to watering the dorman root, it should be depotted as soon as possible, and the roots should be pruned and replanted. If the temperature is low and you are frostbitten, you should move to a warm place as soon as possible.

If there is a lack of water caused by not watering for a long time, it should be replenished as soon as possible, and it is best to water thoroughly to promote its recovery as soon as possible.