Whitefly

Whiteflies are tiny insects that feed on the sap of plants, including bonsai trees. They can cause damage to the leaves, stems, and roots of the bonsai, as well as produce a sticky substance called honeydew that attracts other pests and fungi. Whiteflies can be hard to spot because they hide under the leaves and fly away when disturbed.

To treat whitefly infestations in bonsai, you can use several methods:

• Remove the affected leaves and dispose of them in a sealed bag or bin.
• Use sticky traps to catch the adult whiteflies and monitor the population.
• Spray the bonsai with a homemade insecticidal soap made of water, dish soap, and vegetable oil. Repeat every few days until the infestation is gone.
• Rinse the bonsai with water to wash off any honeydew or soap residue.
• Apply neem oil to the bonsai as a natural pesticide that kills and repels whiteflies and other pests. Follow the instructions on the label and avoid applying it in direct sunlight.
• Attract beneficial insects such as ladybugs or parasitic wasps that prey on whiteflies and their eggs. You can buy them online or from garden centers.

Whitefly infestations can be prevented by keeping your bonsai healthy, well-watered, and well-drained. You should also inspect your bonsai regularly for any signs of pests or diseases, and isolate any new or infected plants from the rest of your collection.