- Mealybugs: These tiny, white insects feed on the sap of rubber trees, causing leaves to turn yellow and drop.
- Aphids: Aphids are small, green insects that also feed on the sap of rubber trees. They can cause leaves to curl and distort.
- Spider mites: Spider mites are tiny, red or brown arachnids that feed on the leaves of rubber trees. They can cause leaves to turn pale and drop.
- Scale insects: Scale insects are small, brown or black insects that attach themselves to the leaves and stems of rubber trees. They can cause leaves to turn yellow and drop.
- Fungal diseases: Rubber trees can also be affected by a variety of fungal diseases, including:
- Leaf spot: Leaf spot is a fungal disease that causes brown or black spots to form on the leaves of rubber trees.
- Powdery mildew: Powdery mildew is a fungal disease that causes a white, powdery growth to form on the leaves of rubber trees.
- Root rot: Root rot is a fungal disease that attacks the roots of rubber trees. It can cause leaves to turn yellow and wilt.
To protect rubber trees from pests and diseases, it is important to keep them healthy and well-nourished. This includes:
- Watering the trees regularly, but not too often.
- Fertilizing the trees according to the package directions.
- Pruning the trees regularly to remove dead or diseased branches.
- Inspecting the trees regularly for pests and diseases.