What effect does contact with a Permethrin-impregnated mattress liner have on pests?

The choice indicating sub-lethal effects that reduce feeding and egg laying is correct because Permethrin is a synthetic chemical commonly used as a pesticide. When pests come into contact with materials treated with Permethrin, they may experience a range of effects that do not necessarily result in immediate death. Instead, the pesticides disrupt the normal physiological functions of the pests, which can lead to reduced feeding behavior and impair reproductive capabilities, such as egg laying. This can ultimately affect pest populations over time, as fewer pests will survive to reproduce.

The nature of its action allows Permethrin to alter the behavior and biological processes of the insects rather than causing an instant demise. This property is particularly useful in managing pest populations long-term, making it a favored option in pest control strategies.

Understanding that Permethrin does not attract pests but can cause sub-lethal effects helps in designing effective pest management systems, ensuring that methods do not simply eradicate pests but also disrupt their ability to thrive and reproduce.