When 22 states had reports of mysterious seeds arriving in the mail from China, it was easy to imagine a plant-based agro-terrorism was afoot. But based on preliminary analysis of the seed samples already collected, the USDA has reported that the seed packets appear to be a mix of ornamental, fruit and vegetable, herb, and weed species. Thus far, 14 species have been identified including mustard, cabbage, morning glory, rosemary, mint, sage, lavender, hibiscus, and roses. Other countries, including Canada, Australia, and European Union member nations, are also reporting unsolicited seed packages. “At this time, we don’t have any evidence that this is anything other than an internet ‘brushing scam,’ where sellers send unsolicited items to unsuspecting consumers and then post false reviews to boost sales. Brushing scams involving seed packets in international mail shipments are not uncommon. U.S. Customs and Border Protection (CBP) has intercepted similar seed shipments in recent years,” the USDA reported. The source has not been identified, however, and the USDA says “it is an evolving situation and and we are working closely with Federal authorities to ensure we are evaluating every possibility.” Seeds can pose a significant risk for U.S. agriculture and natural resources because they can carry plant viruses or other diseases. Imported vegetable or agricultural seed must meet labeling and phytosanitary requirements and be inspected at the port of entry. Some seeds — including citrus, corn, cotton, okra, tomato, and pepper seed — are restricted and can require permitting, testing, and inspection. ...