Agriculture, Weights and Measures’ Integrated Pest Control program planted more than 70 willow tree cuttings and spread native plant seeds across 96 acres of the San Dieguito River Park in October and November. Funding for the work came from the Natural Resource Conservation Service with the purpose of protecting and restoring valuable habitat in the San Dieguito River area of the San Pasqual Valley. Invasive, non-native plants like pepperweed and tamarisk were targeted because they reduce biodiversity and interfere with the natural patterns of native willow and cottonwood succession. They also provide poor forage and nesting cover for native wildlife. Spreading seeds and planting cuttings before the winter rainy season improves their chances of success.