26+ Avocado Tree Brown Spots. It developed well, up until about a month ago, but then brown dots started forming on the leaves, the oldest the plant now is next to a window open most of the day, so the air shouldn't be as dry, but still the spots returned. It has spread even to the small newly sprouted leaves and i'm scared the same thing will happen to them.
The fruits, bark, seeds, and leaves are poisonous for many pests and diseases.
Keep your tree watered and make sure to have a protective layer of mulch to help keep the tree well hydrated. If there are white or grey spots on the foliage, powdery mildew is the likely culprit. Keep your tree watered and make sure to have a protective layer of mulch to help keep the tree well hydrated. Archaeologists in peru discovered avocado seeds one avocado tree can produce as many as 500 avocados (or 200 pounds of fruit) per year.