When foragers start dying in numbers at a hive entrance, the first hours matter more than any other stage of the response. Pesticide residues break down, dead bees are scavenged by ants and birds, and rain washes contamination off foliage — so the window for collecting evidence that regulators can actually use closes fast. This scene shows a hive downwind of a treated crop, with a visible drift plume, a spreading pile of downed foragers, and a sampling zone matching UK Wildlife Incident Investigation Scheme (WIIS) guidance.
UK guidance recommends collecting at least 30 dead or dying bees, plus samples of nearby flowering plants and soil, within roughly 24 hours of noticing a suspected kill — after that, degradation and scavenging make laboratory residue results far less reliable as evidence.
A hive sits downwind of a treated crop; spray drift, a growing pile of downed foragers, and a marked evidence-collection zone show why the first hours after a suspected bee kill are the ones that decide whether a report can be proven.
Stronger drift knocks down more foragers crossing the hazard boundary, while the evidence-confidence score falls the longer the "hours since exposure" clock runs, as scavenging and residue breakdown erode what a lab can still detect.
Set drift strength and elapsed hours, then step through the response stages — secure and photograph the site, collect samples inside the marked radius, and report — to see the checklist mapped onto the scene.
UK guidance asks for at least 30 dead or dying bees plus flowering-plant and soil samples, ideally within about 24 hours, before scavengers and weather make the evidence trail unreliable.