11+ Brown Spots On Avocado Plant Leaves. Some are due to the outside environment and may be out of your control. The leaves don't turn brown from the tip on but just start getting.
Seeing as how i just went through it, i can tell you that you have definite signs of spider mite damage on those leaves. I've seen this on avocado trees before and they seem to survive, but one of mine (a 4' tall, one. I grew an avocado tree question:
I have an avocado plant that's about a foot and 3 inches tall, and a about a year old.
Brown spots on the edge of a leaf are typically due to dehydration, while brown spots in the center are usually signs of disease or mold. The flesh attack leaves and fruit. Leaves become yellow to rusty brown. These are likely symptoms of bacterial leaf spot, which occurs when soil infected with pseudomonas cichorii is splashed onto the leaves during watering.