science

In the U.S., the environmental and economic costs caused by invasive species are estimated to exceed $120 billion per year. Since invasive pests have few or no natural predators, they can quickly spread, and throw off entire ecosystems by pushing out native species and reducing biological diversity. Once introduced, non-native insects can decimate crops and forests. Invasive rodents are also disruptive—particularly on island ecosystems, where they are the leading cause of plant and animal extinctions. Exotic plant pests and diseases threaten U.S. food security, quality of life, and the economy.

Years ago, I spent my days watching pecan roots change the color of solutions from clear to red as they reduced iron for uptake. It may not sound exciting, but that was the topic of my 2010 undergraduate research internship at USDA’s Agricultural Research Service (ARS) Children’s Nutrition Research Center (CNRC) in Houston, TX, under the direction of my mentor, ARS scientist Dr. Michael Grusak.

At USDA we use a feedback loop of 1) surveillance and monitoring 2) research, and 3) education and outreach to find science-based answers to challenging questions such as those posed by AR.