What to Do When the Roots of the Epipremnum Aureum Rot
The Epipremnum aureum, a common indoor ornamental plant, often has root rot problems that troubleshoot beginners. This article provides a systematic explanation of the entire process of dealing with root rot and key points of care through practical illustrations.
Three-Step Process for Dealing with Rotting Roots of Epipremnum Aureum
Step One: Precisely Trim Diseased Roots
When leaves turn yellow and wilt, immediately remove the pot and check the roots. Use a pair of scissors sanitized with alcohol to make a 45-degree oblique cut at the junction of the rootstock, retaining the healthy white roots. After trimming, rinse the remaining humus under running water, taking care to protect the main root growth point.
Step Two: Double Disinfection and Sterilization
First, apply a 1000-fold diluted carbendazim solution to the cut, then soak in a 0.1% potassium permanganate solution for 30 minutes. It is recommended to use a transparent container for easy observation of the disinfection effect, with the solution temperature maintained at 20-25℃ for optimal results.
Step Three: Scientific Repotting and Transplanting
Choose a new matrix of pearl rock: coconut bran in a 1:3 ratio, and the pot needs to be disinfected at high temperature. When transplanting, retain 1/3 of the original protective soil, and gently press the soil after covering to remove air. The first watering can be supplemented with root growth powder, placed in a scattered light environment to recover seedlings.
Potential Risks of Not Repotting
Experimental data shows that the survival rate of Epipremnum aureum with root rot that is not repotted is less than 15%. Pathogens can spread through the vascular bundle, reaching the stem within 7 days. It is necessary to thoroughly replace the humic acid-containing new soil, and the old soil, after high-temperature sterilization, needs to be set aside for 3 months before reuse.
Preventive Care Techniques for Root Rot
Watering Control Points
Use the "finger touch method": water when there is no moisture 2 cm deep into the soil. Keep the potting soil slightly dry in winter and combine leaf surface spraying in summer.
Environmental Control Strategies
Maintain 50-70% air humidity, and when using a tray to increase humidity, ensure that the water level does not touch the bottom of the pot. Ensure 4 hours of scattered light daily and rotate the pot 180 degrees regularly.
Through systematic treatment and scientific care, the recovery rate of Epipremnum aureum with root rot can reach over 90%. The key is to grasp the 72-hour golden rescue period, combined with later water control and care, new roots can sprout within 2-3 weeks.