Which of the following is NOT a characteristic of root borers?

The statement that root borers are beneficial for soil health is correct in the context of this question. Root borers, such as certain types of beetles or larvae, are primarily known for their detrimental impact on plants by weakening root systems and causing structural damage. This weakening leads to various adverse effects on plant health, including wilting and reduced nutrient uptake.

While some organisms within the soil ecosystem may contribute positively to soil health through decomposing organic matter or enhancing nutrient availability, root borers are not among these beneficial organisms. Rather, they are considered pests that undermine plant vitality, making their classification as beneficial inaccurate.

The other characteristics—weakening plant roots, hollowing out roots, and causing wilting—highlight the damaging role that root borers play in the health of plants, further confirming that they do not provide benefits to soil or plants.