When is it usually best to use a residual pesticide lasting more than one season?

Using a residual pesticide that lasts more than one season is particularly advantageous for controlling termites near the foundation of a house. Termites can cause significant structural damage over time, and a long-lasting pesticide application helps to create a protective barrier that reduces the likelihood of termite infestations. This is important because termites can remain hidden and active for long periods, and a single application of a short-term pesticide may not provide sufficient control for an issue that can develop and expand over time.

In contrast, general pest control may require a more flexible approach due to varying types of pests and their life cycles. Similarly, while controlling weeds in a garden is important, the needs for a residual herbicide can differ, especially in vegetable gardens where non-residual options may be preferred to avoid affecting crop health and growth. Lastly, for lawn treatments, while a residual pesticide might be beneficial, the need to address seasonal changes and the types of grasses or ornamental plants involved often calls for products that have a shorter duration or are tailored to specific lawn care needs. Therefore, focusing on termite control near foundations makes the most sense for applying longer-lasting residual pesticides.