Will this get rid of moles by killing their food source?

Many people assume that the presence of moles in their lawns means that grubs are present and apply insecticides. Application of insecticides will not solve the mole problem, however, as insects and grubs are not the primary targets of the moles. The main entree of the mole is actually earthworms. Moles eat more than their own weight in earthworms on a daily basis. Elimination of earthworms is not practical.