Tent caterpillars have overrun campgrounds at Pigeon Lake Provincial Park in Alberta, Canada, during the weekend of June 13-15, 2026 [1, 2].

The infestation disrupts outdoor recreation for visitors and campers southwest of Edmonton. Because these insects move in massive numbers, they can overwhelm campsites and the surrounding natural foliage [1, 2].

Local reports describe the surge as an army of very hungry caterpillars [1, 2]. The insects have converged on the provincial park, creating a visible and disruptive presence for those attempting to use the facilities this weekend [1, 2].

Experts said that the caterpillars are experiencing a cyclical population boom [2]. This natural phenomenon leads to unusually high numbers of larvae that can saturate specific geographic areas, such as the park [2].

While the surge is a natural occurrence, the scale of the population spike has made the campground's environment challenging for guests [1, 2]. The reports surfaced on June 13, 2026 [1].

“Tent caterpillars have overrun campgrounds at Pigeon Lake Provincial Park”

This event illustrates the impact of cyclical biological surges on public infrastructure and tourism. When insect populations peak due to natural cycles, it creates temporary but intense pressure on provincial parks, requiring visitors to adapt to wildlife disruptions that are typical of the region's ecology.