University of California
San Joaquin County Environmental Horticulture
Welcome!
Landscape horticulture is an integral part of San Joaquin County's heritage and culture. Our mild climate and proximity to water provide abundant choices for growing a wide variety of beautiful plants. Our location at the head of the Delta also gives us a responsibility to manage our landscapes in sustainable ways that preserve the health and beauty of our waterways and wildlife for future generations.
What is Sustainable Landscaping?
beneficial syrphid fly
PRACTICES THAT:
- Minimize chemical fertilizers and pesticides in the environment through INTEGRATED PEST MANAGEMENT
- Use water conservatively and eliminate non-storm run-off to storm drains
- Utilize plants that are appropriate for their space, use, and climate
- Minimize green waste to the landfill
- Provide food and shelter for beneficial wildlife
- Build and maintain soil health
Mitigation of Contaminants in Surface Runoff from Nurseries
In the late 1980s, contamination of San Diego Creek and Newport Bay in Orange County resulted in the development of Total Maximum Daily Loads (TMDLs) for sediment, nutrients, pathogens, and several toxics. Since then, surface runoff from three nurseries operating in the San Diego Creek watershed has been regulated by the Santa Ana Regional Water Quality Board by issuing Waste Discharge Requirements (WDRs) permits. The permits have been updated regularly to reflect changes in water quality and to coincide with TMDL allocations.
However, pollutant allocations have been expected to be reduced substantially in revised permits, thereby putting the nurseries at risk of consistently exceeding their daily load allocation.
Read about: Mitigation of Contaminants in Surface Runoff from Nurseries | View Other Stories
In the News
Training Young Trees: complete video series now available online
Extension Horticulture Research articles
| Presentation on Ramps (Allium tricoccum) in Appalachia |
| Garden Calendars & Tips |
| Cause, Affect and Prevention of Erosion on Urban Trees |
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