Pest identification
What's eating my xanthosoma robustum?
Spider mites
Signs: Stippling and fine webbing across large leaf surfaces; foliage loses sheen and can yellow in heavy infestations
Control: Rinse leaf undersides thoroughly with water; apply neem oil or insecticidal soap weekly until infestation is resolved
Mealybugs
Signs: White cottony masses at petiole bases and leaf axils; leaves weaken and honeydew promotes sooty mold
Control: Dab colonies with a cotton swab dipped in rubbing alcohol; spray with insecticidal soap; repeat over several weeks
Aphids
Signs: Clusters on young growth and stems; honeydew drip attracts ants and can disfigure large leaves
Control: Remove with a strong water jet; apply insecticidal soap or neem oil to affected areas
Slugs and snails
Signs: Ragged holes chewed through the large leaf blades overnight; slime trails on foliage and soil surface
Control: Hand-pick at night; apply iron-phosphate slug pellets around the base; reduce excess soil moisture
Keep xanthosoma robustum pest-free
Healthy plants resist pests best. Get the basics right:
Xanthosoma Robustum pests — FAQ
What is eating my xanthosoma robustum?
Xanthosoma robustum, a large-leaved tropical grown for ornamental use, is commonly attacked by spider mites and mealybugs when kept as a houseplant or container tropical, and by aphids and slugs in outdoor settings. Its substantial leaves make damage from slugs and mites visually striking and easy to spot early.
How do I get rid of spider mites on xanthosoma robustum?
Stippling and fine webbing across large leaf surfaces; foliage loses sheen and can yellow in heavy infestations Rinse leaf undersides thoroughly with water; apply neem oil or insecticidal soap weekly until infestation is resolved
How do I get rid of mealybugs on xanthosoma robustum?
White cottony masses at petiole bases and leaf axils; leaves weaken and honeydew promotes sooty mold Dab colonies with a cotton swab dipped in rubbing alcohol; spray with insecticidal soap; repeat over several weeks
How do I get rid of aphids on xanthosoma robustum?
Clusters on young growth and stems; honeydew drip attracts ants and can disfigure large leaves Remove with a strong water jet; apply insecticidal soap or neem oil to affected areas
How do I get rid of slugs and snails on xanthosoma robustum?
Ragged holes chewed through the large leaf blades overnight; slime trails on foliage and soil surface Hand-pick at night; apply iron-phosphate slug pellets around the base; reduce excess soil moisture