How do I take care of a bonsai plant that seems to be infected by aphids? My bonsai tree's leaves appear shiny and brittle and eventually fall off. I was told by a plant person that this was due to aphids. They told me to wash the plant with Dawn dish soap and water. I did this, but the leaves continue to be shiny and brittle. Is there any natural cure for this problem? I also read that putting a slice of an onion will keep the aphids away. Does this method work?
Bonsai Plant Infected by Aphids
Certified GKH Gardening Expert
Neem Oil is a good treatment for insects or fungus.
Neem Oil works as both an insecticide and fungicide.
It is organic and is safe for people and pets.
Aphids are generally quite visible. Check the undersides of the leaves.
Leaf drop could be due to watering issues, too much or too little.
Recheck the light conditions for your particular plant.
Temperature changes could also cause leaf drop.