Which statement defines occasional pests?

Occasional pests are defined as those that do not consistently threaten crops or livestock but can become problematic under certain conditions, leading to rare instances of economic losses. This distinction is important for pest management, as it helps private applicators recognize that, while these pests may not pose a significant risk on a regular basis, they can become more prevalent due to changes in environmental conditions or farming practices. Understanding that occasional pests can lead to sporadic economic impacts prepares applicators to monitor for these pests and respond appropriately when their numbers increase, ensuring that effective management strategies are in place even if the threat is not constant. This categorization contrasts with pests that consistently cause losses, which require more continuous management efforts.