Which of the following is NOT one of the conditions conducive to larval growth inhibition by IGRs?

The correct answer identifies low temperatures as not being conducive to larval growth inhibition by Insect Growth Regulators (IGRs). IGRs function effectively under certain environmental conditions, which typically include warm temperatures and high humidity. These conditions facilitate the metabolic processes and developmental stages of larvae, allowing IGRs to disrupt their growth more effectively.

In contrast, low temperatures often slow down or inhibit the biological processes in many organisms, including insects. This reduced activity can lessen the effectiveness of IGRs, as the larvae may not be developing at a pace that makes them susceptible to the growth-regulating effects of these chemicals. Additionally, the presence of low humidity and low wind can help create a more favorable environment for larval development, which further contrasts with the outcome seen at lower temperatures. Thus, recognizing the role of temperature in larval development is critical in understanding the effective use of IGRs in controlling insect populations.