QuestionsHow to growTrees and ShrubsPests and DiseasesLeaves being eaten on Magnolia tree 0 Vote Up Vote Down Frank Barriscale asked 16 years ago Something is eating the leaves on my newly planted Magnolia tree,it was planted approx five weeks ago,I put grit around the base of the plant as I thought it was slugs,have not seen any slug trail since ,but the leaves are still being eaten.Corkylad 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 8 years ago It is probably snails and the slime trails are being washed away with rain. Grit makes no difference.