Question: what is eating the leaves on my olive tree?
Answer: The Olive Lace Bug Froggattia olivinia is a damaging pest of olive trees. The severe leaf damage the bugs inflict can cause loss of vigour, yellowing of leaves, leaf fall and reduce fruit yield for the next 1 or 2 years. ... Eggs that have overwintered on the tree usually begin to hatch out in spring or late winter.