I saw lice eggs on the back of the leaves of a lemon tree. I do not want to use any product that is harmful to nature, especially
to the bees. I was reading about the parasitic wasps that feeds on the lice. I have wasps flying around the lemon tree. I saw one of them sitting on the white eggs on the back of a leaf. Do they also feed or inject the eggs as describe in your article of the parasitic wasps?. I saw that a lot of the undersides of the leaves are now black, where it was white before. I am trying to take a photo of the wasps and will upload it, once I am successful.
There are a few common pests on lemon trees and citrus.
This article will help you.