RAT PROOFING IN NORTH HOLLYWOOD, CA

The LA River corridor is the central factor. The channel’s concrete banks and adjacent riparian vegetation between the river and residential streets provide sustained shelter and food for rodent populations that are among the largest in the Valley. The closer a property is to the river, the higher the consistent rodent pressure, and the eastern parts of North Hollywood, near Tujunga and toward Burbank, are the most directly affected. But the activity extends well into the western residential streets as roof rats use the established tree canopy and utility lines as travel routes.

The rental history of many North Hollywood houses means that roofline maintenance was deferred during the same decades when rodent pressure was building. Eave closures that loosened and were never repaired, vent screens that rusted through and were never replaced, and gaps at roofline transitions that were never addressed have accumulated into a building envelope that, in many North Hollywood homes, provides relatively easy access for rodents along multiple pathways.

North Hollywood also has an abundance of mature fruit trees, particularly citrus, in its residential yards. These trees provide a year-round food source that sustains rodent populations at higher levels than in areas without this resource, and the branches they extend toward rooflines provide direct access routes that rats use.