As an expert in entomology, I can tell you that grubs and Japanese beetles are not the same. Grubs are the larval stage of various species of beetles, particularly those in the Scarabaeidae family, which includes June bugs. They are typically found in soil and feed on the roots of grasses and other plants. On the other hand, the Japanese beetle is a specific species known as Popillia japonica. It is an invasive species in many parts of the world and is known for its voracious appetite for the foliage of various plants.

read more >>

The immature stage of the Japanese beetle �C the white grub �C typically has a three year life cycle. However, most of the damage to ornamentals and turf grass happens during the spring and fall the second year. This is when grubs are present in the top inch of the root zone, heavily feeding on grass roots and thatch.read more >>