How to Solve the Yellow Spots on the Leaves of Goldfish Vine
The appearance of yellow spots on the leaves of Goldfish Vine is a common cultivation challenge, not only affecting its ornamental value but also serving as a health alert from the plant. This article systematically analyzes the four core causes and corresponding solutions, from root care to environmental control, to help you quickly identify the root of the problem.
One, Soil Activation Project
The Dangers of Compacted Soil
Potted soil is prone to form salt and alkali crystals after long-term watering, and when the density exceeds 1.6g/cm³, root respiration is hindered. During inspection, observe whether the surface of the potting soil is cracked and whether the water seepage speed has slowed down.
Guide to Potting
The best time for potting is in spring and autumn, using a substrate mix of peat:perlite:vermiculite = 5:3:2. Control water 3 days before potting, retain 1/3 of the protective soil after removing from the pot, and prune old fine roots to less than 15%.
Two, Root Rescue Plan
Identification of Root Rot Due to Waterlogging
Affected plants often show wilted and drooping leaves, with roots turning deep brown and losing elasticity. Use the bamboo stake test: insert it into the potting soil for 10 minutes, and if more than 2/3 of the bamboo stake is wet, it is necessary to control the water.
Emergency Treatment Process
Cut off the decayed roots and soak in a 50% carbendazim solution diluted 800 times for 20 minutes, then air-dry the roots for 12 hours before repotting. It is recommended to use breathable containers like red pottery and place a 3cm layer of ceramsite at the bottom for drainage.
Three, Light Control Solution
Management of Light Intensity
Suitable light intensity is between 8000-12000lux, and in summer, a shading net is needed to filter 60% of the intense light. The best placement is near an east-facing window, avoiding direct sunlight from 11-15 PM.
Light Supplement Techniques
In winter, additional LED plant lights can be provided, extending the daily exposure time to 10 hours, with a distance of 30-50cm to prevent leaf burn.
Four, Temperature and Humidity Balance Technique
Protection from High Temperature Damage
When the temperature consistently exceeds 28°C, use double-layer shading and cyclic fans to cool down. Combine with pebble water trays to increase humidity, maintaining the air humidity between 60%-75%.
Seasonal Maintenance
In summer, adopt the morning and evening watering method (5-7 AM/6-8 PM), and in winter, use warm water (25°C) for irrigation at noon. Use EM bacteria solution monthly to enhance stress resistance.
Through systematic environmental control and precise maintenance, the yellow spot issue of Goldfish Vine can be significantly improved within 2-3 weeks. It is recommended to establish a maintenance log, recording data such as temperature and humidity, watering frequency, and adjusting the management plan dynamically based on the plant's response, allowing the tropical beauty to regain its lustrous green color.