Why do Phalaenopsis stems turn yellow? How to treat stem rot?

1. Why do Phalaenopsis orchid stems turn yellow?

1. Improper watering: If you water the Phalaenopsis orchid frequently during maintenance, too much water will easily accumulate, causing the roots to slowly rot and the stems to turn yellow. If it is not treated quickly, it will worsen and the plant will die.

2. Infection with pathogens: If the environment provided is not suitable, the plant will easily be infected with pathogens and the stems will turn yellow. Pruning and disinfection should be done as soon as possible to prevent the plants from withering and dying.

3. Improper fertilization: A lot of nutrients are consumed during the growth period, so fertilizer should be applied in time to supplement them. When applying, choose dilute, well-rotted fertilizer and adjust it according to the growth conditions. If concentrated fertilizer or raw fertilizer is applied, it will easily burn the roots and turn yellow.

4. Too strong light: Too strong light is also one of the reasons why its stems turn yellow. If the plants are exposed to strong sunlight for a long time, they will easily get sunburned and turn yellow. Note that shading is required in summer.

2. How to treat Phalaenopsis stem rot

Phalaenopsis orchid stem rot should be treated as soon as possible. Remove the plant from the pot, cut off the rotten stems, burn the cut parts together and clean them up. After that, disinfection is required. Soak the plant in a solution of carbendazim for a while, apply wood ash to the wound, dry the water, and then change the pot and replant it.