How do waxy coatings on some pests help them survive?

Waxy coatings on some pests serve as an effective barrier against desiccation, which is the process of drying out. This is particularly beneficial for insects that inhabit environments where moisture is scarce. The waxy layer helps to retain water within their bodies, preventing dehydration and enabling them to survive in challenging conditions. Additionally, this coating can create a protective barrier against various insecticides, helping pests resist chemicals that might otherwise be lethal. In contrast, while insulation and camouflage are important survival strategies for many organisms, they are not primary functions of waxy coatings. Movement and agility are also not directly influenced by the presence of waxy layers. Therefore, the role of waxy coatings as a protective barrier against both environmental moisture loss and chemical threats underscores their significance in the survival of certain pests.