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In an integrated pest management (IPM) program, one of the most important steps is setting an action threshold, or “the tipping point.” The U.S. Environmental Protection Agency (EPA) defines an action threshold as “the point at which pest populations or environmental conditions indicate that pest control action is necessary.” (Source)
Farmers use specific metrics in agriculture to decide when pests or weather pose an economic threat, often defined by numbers. Once the threshold is reached, action is taken to protect crops.
Establishing an action threshold in structural settings can be more complex and depends on the account. Commercial establishments may be subject to audits defining that threshold, while personal tolerance plays a key role in residential settings.
Monitoring is crucial in all cases to identify pests and estimate their populations. Tools such as game cameras, smart devices, non-active monitoring baits and visual signs (such as rodent droppings) can help.
