Dealing with issues like aphids on your dipladenia can be frustrating, but understanding the causes and remedies can help you maintain a healthy plant.

Common Diseases of Dipladenia:

  • Grey Rot: A fungal disease thriving in humid conditions, causing brown spots that turn into gray felt, leading to drying and rotting.
  • Mealybugs: Sucking insects leaving white, floury deposits on leaves, yellowing foliage, and deformed shoots.
  • Red Spiders: Tiny mites feeding on plant cells, causing yellowing and discoloration of leaves, impacting growth.

Why Does My Dipladenia Have Aphids?
Aphids are frequent pests of dipladenias, often found under leaves and on young branches. They cluster in colonies, feeding on sap and causing leaf curling, yellowing, and branch deformities. Their honeydew secretion can lead to sooty mold disease.

Simple Tips to Manage Aphids:

  • Water Jet Treatment: Use a strong water jet to dislodge aphids from leaves.
  • Natural Solutions: Nettle manure repels aphids when diluted and sprayed regularly. Crush aphids manually for immediate control.
  • Black Soap Treatment: Dilute black soap in water and spray onto plants to kill aphids and clean honeydew.

Inviting Beneficial Insects:
Encourage natural predators like ladybugs or lacewings to control aphids. In gardens, promote biodiversity with nectar-producing plants and shelters for wildlife.

By understanding these issues and applying preventive measures and treatments promptly, you can ensure your dipladenia stays healthy and vibrant throughout the growing season.