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United States Department of Agriculture

Agricultural Research Service

Research Project: Areawide Management of Invasive Weeds in the Sacramento/ San Joaquin River Delta: a Cooperative Inter-Agency Approach

Location: Exotic and Invasive Weeds Research

Project Number: 2030-22000-024-12
Project Type: Specific Cooperative Agreement

Start Date: Sep 15, 2014
End Date: Jul 01, 2019

Objective:
To assess aquatic weed growth under field conditions (including specific climate change variables such as high temperature, low water, etc.) in cooperation with USDA and National Aeronautics and Space Administration (NASA) scientists. To monitor environmental characteristics (air, sediment, and water conditions) that affect weed growth in the Delta, and use these data in making projections of weed population densities and phenology for optimal spatial and phenological targeting of area-wide control options. To implement and assess improved weed control methodologies as designed by the Inter-Agency Team and to experimentally treat example acreage in the southern and western Delta as a pilot demonstration study.

Approach:
Weed growth and development will be assessed to increase the team’s ability identify and target physiological weak points in plant biology and ecology as it relates to potential control treatments. Abiotic variables driving weed growth and development (such as air and water temperature, light and wind conditions, nutrient levels, etc.) will be monitored and provided to cooperators who will predict weed growth, reproduction and dispersal potential in critical habitats. Biologists will work with remote sensing and Geographic Information System (GIS) mapping specialists from NASA to improve targeting for area-wide weed control. Together, research personnel, operational staff, local land and waterway managers, and county mosquito abatement districts will be planning and working together throughout this project to improve program efficacy and provide sustainable methods for long-term use. Outcomes will be evaluated and promoted in cooperation with USDA, University of California (UC) Cooperative Extension Service specialists and others in San Joaquin and Contra Costa Counties. Program enhancements will thus be directly transferred to end-users as the program advances through direct application and assessment.

Last Modified: 12/22/2014
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