I have a young fig tree which has suddenly acquired a caterpillar problem. Some leaves are fine but many have big patches where the leaf has been half skeletonised and there are fine webs. Inside the webs I can see some light green caterpillars and I think I saw a moth too.
How do I treat it please? Do I cut off the affected leaves? Any spray you would recommend? The tree is important for my garden’s privacy so I really really want to save it.