You only need to put rat traps on 4% of a farm to protect the entire field from getting trashed.
SSRN · March 13, 2026 · 6408210
Why it matters
This challenges the assumption that pest control must be applied across an entire property to be effective. By focusing traps intensely on the "nursery" area where rats congregate during field flooding, farmers can achieve a massive 60% reduction in total damage with a tiny fraction of the usual effort and cost.
From the abstract
Rodent damage remains a major constraint in irrigated rice ecosystems of South Asia, where the lesser bandicoot rat (Bandicota bengalensis) is a dominant pest species. Conventional trap barrier systems (TBS) are difficult to implement in canal-irrigated rice because fixed irrigation schedules restrict the establishment of early trap crops required for attraction-based trapping. This study evaluated a nursery-centred plastic barrier trap system (PBTS) designed to intercept rodents displaced durin