Pest identification
What's eating my river clog plant?
Mealybugs
Signs: White powdery masses in stem crotches and leaf axils; sticky residue on lower leaves; stunted new growth
Control: Remove with alcohol-tipped swabs; follow with weekly neem oil or insecticidal soap spray; repeat for 4 weeks
Spider mites
Signs: Tiny pale speckles on leaf surfaces; webbing under leaves; more common in winter heating season
Control: Raise humidity, shower plant to dislodge mites, apply insecticidal soap on a 5–7 day cycle
Scale insects
Signs: Hard brown bumps on older stems; gradual yellowing and leaf drop as sap is removed
Control: Scrape off manually; treat with horticultural oil; check and re-treat after 2–3 weeks
Keep river clog plant pest-free
Healthy plants resist pests best. Get the basics right:
river clog plant pests — FAQ
What is eating my river clog plant?
River clog plant (Nematanthus fluminensis) is a Brazilian gesneriad grown as a trailing houseplant. Mealybugs are the chief threat, tucking into the joints of its dense stems. Spider mites can establish on leaf undersides in dry air. Both are controllable with early action — check stem nodes at every watering.
How do I get rid of mealybugs on river clog plant?
White powdery masses in stem crotches and leaf axils; sticky residue on lower leaves; stunted new growth Remove with alcohol-tipped swabs; follow with weekly neem oil or insecticidal soap spray; repeat for 4 weeks
How do I get rid of spider mites on river clog plant?
Tiny pale speckles on leaf surfaces; webbing under leaves; more common in winter heating season Raise humidity, shower plant to dislodge mites, apply insecticidal soap on a 5–7 day cycle
How do I get rid of scale insects on river clog plant?
Hard brown bumps on older stems; gradual yellowing and leaf drop as sap is removed Scrape off manually; treat with horticultural oil; check and re-treat after 2–3 weeks