colour of the African bollworm (Helicoverpa armigera) varies
considerably. The spots on young individuals are usually more prominent (middle
column). Some individuals may have lighter bands on the sides, similar to the
fall armyworm. Of all the caterpillars, it is only the bollworm that displays
the characteristic “sphinx stance” when disturbed (top right). Moths are pale
brown and do not lay eggs in masses. Pupae are formed in earthen cells.
African bollworm, D.Visser, ARC-VOP, Roodeplaat