How to Rid Rhizoctonia on Anthurium
- 1). Lift your anthurium out of its container and inspect the roots. If more than half are brown and mushy, discard the plant, which can't be saved. If less than half are infected you may be able to save the plant. Using clean scissors, cut out infected roots. Cut back to healthy tissue, leaving as much healthy root as possible.
- 2). Clean the container in which your anthurium was potted, using a solution of 9 parts water to 1 part bleach. Rinse it thoroughly. If your old pot does not have drainage holes, discard it and purchase a new one with drainage holes and an overflow dish. Adequate drainage is essential for a healthy plant.
- 3). Mix 1 part peat, 1 part pearlite and 1 part wood shavings thoroughly. Lay enough of the potting mix in the bottom of the pot to keep the root crown of your anthurium level with the soil line. Place the anthurium in the pot and fill the rest of the pot with potting mix. Don't tamp the mix down or you'll compromise its ability to drain. Water the mix, let it settle, then add more mix. Repeat until the mix is level with the top of the root crown.
- 4). Trim any diseased leaves and dispose of them in the garbage.
- 5). Place the pot in an area where it gets good airflow and is not overcrowded by other plants. Avoid humid area like kitchens or bathrooms.
- 6). Water your anthurium only when the top 2 inches of the potting medium are dry. Fifteen minutes after watering, empty any water standing in the overflow dish.