Troubleshooting
Pulasan problems — and how to fix them
Pulasan (Nephelium ramboutan-ake) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot (Phytophthora)
Poorly draining soils allow Phytophthora pathogens to cause rapid root and crown rot, visible as sudden wilting and bark discoloration at the base. Improve drainage before planting and avoid overwatering, especially in cool weather.
Fruit splitting
Irregular irrigation during fruit development, especially after a dry spell followed by heavy rain or watering, causes the rind to split before harvest. Maintain consistent soil moisture once fruits are sizing up.
Mealybugs
White waxy colonies at leaf axils and on young stems sap plant vigor and produce honeydew that promotes sooty mold. Treat with neem oil or insecticidal soap, and encourage natural predators such as ladybirds.
Prevent pulasan problems before they start
Most pulasan issues are care-mismatch, not bad luck. Dial in the basics:
Pulasan problems — FAQ
Why is my pulasan root rot (phytophthora)?
Poorly draining soils allow Phytophthora pathogens to cause rapid root and crown rot, visible as sudden wilting and bark discoloration at the base. Improve drainage before planting and avoid overwatering, especially in cool weather.
Why is my pulasan fruit splitting?
Irregular irrigation during fruit development, especially after a dry spell followed by heavy rain or watering, causes the rind to split before harvest. Maintain consistent soil moisture once fruits are sizing up.
Why is my pulasan mealybugs?
White waxy colonies at leaf axils and on young stems sap plant vigor and produce honeydew that promotes sooty mold. Treat with neem oil or insecticidal soap, and encourage natural predators such as ladybirds.