Agricultural Research Service Date Issued: January 23, 2001 Abstract: The invention relates to compositions and methods for attracting, trapping and/or killing the adults of the Asian longhorned beetle, Anoplophora glabripennis, or for interfering with their reproduction. The Asian longhorned beetle is a member of the largest and one of the most advanced subfamilies, the Lamiinae, whose species usually attack living trees. The aggregation pheromones, 4-(n-heptyloxy) butanal and 4-(n-heptyloxy) butan-1-one, in combination with a trap or toxicant, provide means for monitoring, killing, or inhibiting the reproduction of these insects. Inventors: Aijun Zhang Insect Chemical Ecology Laboratory Beltsville, MD 20705 (301) 504-6085 / Fax: (301) 504-6580 E-mail: azhang@asrr.arsusda.gov James E. Oliver (Same address as first inventor) (301) 504-8639 / Fax: (301) 504-6580 E-mail: joliver@asrr.arsusda.gov Jeffrey R. Aldrich (Same address as first inventor) (301) 504-8531 / Fax: (301) 504-6580 E-mail: jaldrich@asrr.arsusda.gov