The term "insect control" refers to a broader concept or practice involving methods and strategies for managing insect populations. This term is often used in pest management contexts. However, depending on the sentence structure and overall intent of the original text, "insect control" might not accurately communicate the intended action or purpose.
If the original text is meant to convey the idea of a specific method or action aimed at reducing or managing insect populations, "to help control insects" expresses that intention more clearly by indicating a supportive action.
If the sentence already suggests a program or strategy rather than an action, then "insect control" could be appropriate. The correct choice largely depends on the context in which the phrase is used. Without additional context, it's hard to definitively state that one option is better than the other.