Ornamental and Turf Pesticide Applicators Practice Exam

The immature stages of which insects are referred to as white grubs?

1. Green June beetles and Japanese beetles

2. Masked chafers and Oriental beetles

3. Both Japanese beetles and Oriental beetles

4. All of the above

The correct answer is: All of the above

White grubs are the larval stages of certain beetles, characterized by their white, C-shaped bodies. They are typically found in the soil and feed on roots, which can lead to significant damage in lawns and ornamental plants. The correct choice encompasses all the mentioned beetles, each of which has larvae that fit this description. Green June beetles and Japanese beetles, for example, produce larvae that are commonly referred to as white grubs. Similarly, masked chafers and Oriental beetles also have their immature stages known as white grubs. Since the term "white grubs" applies to the larvae of each of these beetle species, the selection of all of the above is accurate, confirming that all these types contribute to the category of pests commonly encountered in turf and ornamental settings. Understanding the variety of insects that produce white grubs is essential for proper pest management and control strategies.