What should follow the discovery of a pest infestation?

Following the discovery of a pest infestation, the most appropriate step is to consult with a licensed pest control professional. This is crucial because a trained expert can accurately identify the type of pest, assess the extent of the infestation, and recommend the most effective treatment options. Pest control professionals have the knowledge and experience to ensure that any treatments applied are safe for both humans and the environment while also being effective in eradicating the pests.

Additionally, a professional can provide advice on prevention measures to avoid future infestations. This step ensures that the response to the infestation is managed effectively and safely, which is essential for successful pest control.

Immediate application of chemicals may seem like a quick fix, but without proper identification and guidance from a trained professional, it may lead to ineffective treatment or even exacerbate the problem. Public notification and posting signs around the property could be relevant in specific scenarios, such as a significant health threat or community awareness, but these actions do not directly address the need to eradicate the pests and ensure the safety of the premises. Thus, consulting a licensed pest control professional is the most effective course of action to take after discovering a pest infestation.