Official Pest Report

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

Update on the Regulated Areas within New York State for Swede Midge - United States

Country: United States

Title: Update on the Regulated Areas within New York State for Swede Midge - United States


Report: Swede Midge, Contarinia nasturtii (Kieffer), is a pest of Brassica and other related crucifers. It has caused serious economic damage to vegetable crops in Canada, especially to broccoli fields. This fly species had not been detected in North America before 2001.

Beginning in September 2004, Swede Midge, a Cecidomyiidae, was first detected in Niagara County, New York. During the course of subsequent survey activities for this pest in 2005, additional positive samples were collected in the New York counties of Erie, Genesee, Monroe, Orleans, and Wyoming.

Detection efforts for Swede Midge continued in New York in response to the finds in 2004 and 2005. In 2006, during the course of survey work, seven additional counties discovered the pest: Cattaraugus, Chautauqua, Lewis, Madison, Oswego, St. Lawrence, and Wayne. This brings the total number of counties positive for Swede Midge in New York to thirteen.

APHIS continues to coordinate with the New York State Department of Agriculture and Markets to conduct additional delimiting surveys for infestations of Swede Midge. A pest alert describing this insect and symptoms of damage by the pest is available on the APHIS website at

Posted Date: March 2, 2007, 9 a.m.