Pest identification
What's eating my white dipladenia?
Spider mites
Signs: Tiny pale dots on upper leaf surface; webbing under leaves; premature leaf drop
Control: Increase ambient humidity; rinse foliage with water; apply insecticidal soap or neem oil every 7 days
Mealybugs
Signs: White waxy tufts in stem joints; honeydew residue; plant looks dull and lacks vigour
Control: Spot-treat with isopropyl alcohol; follow with insecticidal soap spray; repeat weekly
Aphids
Signs: Soft insects clustered on shoot tips; distorted young leaves; sticky deposits
Control: Squash by hand or hose off; spray insecticidal soap; introduce parasitic wasps where possible
Keep white dipladenia pest-free
Healthy plants resist pests best. Get the basics right:
White dipladenia pests — FAQ
What is eating my white dipladenia?
White dipladenia (Mandevilla boliviensis) shares the pest profile of all mandevilla relatives. Spider mites are the most damaging threat in warm, dry conditions. Mealybugs settle into leaf joints, and aphids attack fresh growth. Good airflow, regular inspection, and keeping plants well-watered reduces most pest pressure significantly.
How do I get rid of spider mites on white dipladenia?
Tiny pale dots on upper leaf surface; webbing under leaves; premature leaf drop Increase ambient humidity; rinse foliage with water; apply insecticidal soap or neem oil every 7 days
How do I get rid of mealybugs on white dipladenia?
White waxy tufts in stem joints; honeydew residue; plant looks dull and lacks vigour Spot-treat with isopropyl alcohol; follow with insecticidal soap spray; repeat weekly
How do I get rid of aphids on white dipladenia?
Soft insects clustered on shoot tips; distorted young leaves; sticky deposits Squash by hand or hose off; spray insecticidal soap; introduce parasitic wasps where possible