What is a key characteristic of conventional insecticides?

Conventional insecticides are often designed to target a broad spectrum of pests, which allows them to control various species with a single application. This is particularly advantageous in agricultural practices where multiple pest species may threaten crops simultaneously. By being effective against several insects at once, conventional insecticides can reduce the need for multiple treatment applications, saving time and resources for the user.

In contrast, some insecticides may be very specific to one pest species or require repeated applications to achieve desired control levels, which does not reflect the general characteristic of conventional insecticides. Additionally, while some products might be marketed as environmentally friendly, conventional insecticides are typically associated with chemical residues and potential environmental impacts, which is not a defining trait of their use.