Hi. We've had an orange tree the has produced awesome oranges for over 10 years. Last year, the crop dropped off a bit, and I've noticed some spots on the leaves in addition to the leaves being a bit yellow. Today, I thought I also saw some sort of larva on the tree on one of the leaves. I took some pictures, and have attached. I'm in San Jose, California. Anything to do? Thanks. -- Dave
It appears to be some sort of nutritional deficiency. This document may help you diagnose the problem.
