Root-rot disease - Houseplants Disease and Control
The first sign of root-rot disease is yellowing and wilting of the leaves which is rapidly followed by browning and houseplant collapse. The cause is fungal decay due to waterlogging of the soil. Cacti, Succulents, Begonia, Palms and Saintpaulia are highly susceptible to this disease.
- If spotted early, the houseplant can be saved through root surgery technique; remove the plant from its pot, wash the soil out from the roots. Cut off brown-black, mushy roots and disinfect the remaining roots with a fungicidal solution. Cut away any stems or leaves showing any rot. Disinfect the pot with the fungicidal solution or use a fresh pot and repot the houseplant in fresh potting soil. Water with the fungicidal solution and place the pot in a well-lit spot. Do not water again until new growth appears and avoid overwatering thereafter.
- If all the roots are brown-black and mushy, the houseplant is far gone and cannot be saved. Discard the plant and disinfect the pot with a fungicidal solution before re-using it.
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