Is it difficult to separate true white grubs from annual white grubs?
No (if you’ve done it before). Yes (if you’re attempting it for the first time). With a little practice, you can easily impress your neighbors with the relative ease by which you separate injurious from noninjurious white grubs. There is a pattern of bristles on the undersurface of the last abdominal segment of true and annual white grubs. True white grubs appear to have a “zipper” comprised of two parallel rows of bristles. Annual white grubs lack a “zipper” and instead have bristles in no particular pattern.
