Pest Information for Hidden Hills, San Fernando Valley

This June’s hot and dry pattern—with temperatures consistently in the 85–95°F range and no measurable rain since May—is driving two major pest threats across Hidden Hills Estates: **stable flies** and **roof rats**. Stable flies are exploding right now because the combination of horse manure, hay storage in barns along Long Valley Road, and the shaded wash racks near arenas create ideal breeding sites. These biting flies target livestock and humans alike, and with the multi-acre properties featuring pastures and riding trails that border the community’s open-space wildlife corridor, the flies have ample host animals and undisturbed breeding zones. Roof rats are equally active, exploiting the dry conditions to seek water and shelter in the attics of 1950s–2010s custom estate homes, especially those with mature oaks or ivy-covered walls near the Equestrian Center and the gated perimeter fencing. The standing water in horse troughs and wash areas, combined with unsecured feed bins in barns, provides rats with both hydration and food, while the rural character and adjacent Calabasas hills allow them to move freely between properties via fence lines and drainage culverts. Homeowners should look for clusters of stable flies on horses’ lower legs and bellies, or on the sunny sides of barn walls, and check for roof rat signs like droppings in garages or hay lofts, gnaw marks on irrigation lines, and rustling sounds in attics at dusk. Below are the top-rated Hidden Hills exterminators who specialize in these specific seasonal threats.