How to remedy the rotting root of cactus

I. remedial measures

Take the cactus out of the flowerpot, cut off the rotten place with sterilized scissors, disinfect it if possible, and then put it in a ventilated place to dry. It will be very difficult for it to survive if it is not dried. Just insert it into the pot soil after the wound is dry, do not insert it too deep so as not to cause rot, and it is best not to water it before it grows back into the roots.

II. Preventive methods

1. Reduce watering

Reason: cactus does not need too much water, if it is overwatered, it will produce stagnant water, coupled with an unventilated environment, its roots are easy to rot and lead to the death of the whole plant.

Solution: put it in a ventilated environment as far as possible, wait for the soil to dry before watering, daily maintenance watering should be appropriate, do not water too frequently.

2. Appropriate amount of fertilizer

Reason: poor control of cactus fertilization, it is easy to apply too much fertilizer, or the application of unrotten fertilizer, may cause rotting roots.

Solution: timely and appropriate amount of fertilizer, the amount of fertilizer should not be too much, the concentration of fertilizer should not be too high, apply fertilizer once every 15 days during its growth, it is best not to apply fertilizer in winter, or apply a small amount of fertilizer, so that the roots will not rot.

3. Adjust the temperature

Reason: if the winter temperature is low, the cactus will be frostbitten, thus causing the phenomenon of rotten roots.

Solution: to properly adjust the temperature, it is best to control the temperature above 5 ℃ in winter, it is best to let it receive sufficient light during the day, and the leaf surface can also be wrapped in a thin film, which can protect against the cold and keep warm.