Sunday, December 10, 2006 - 8:59 AM

Invasive Tipula crane flies in the Northeast: Impact and control alternatives on golf courses

Daniel Olmstead, and Daniel C. Peck, Cornell University, Department of Entomology, NYSAES, 630 W. North Street, Geneva, NY

Three years after their first detection in western New York, observations on the pest status of two invasive crane flies, T. oleracea and T. paludosa, are reviewed. Impact has taken the form of scalping damage to golf course greens, root-feeding injury to home lawns, turf disruption due to the activities of skunks searching for larvae, and swarms of adults reported as nuisance problems by home owners in suburban settings. Two preventive fall and two curative spring field trials were conducted to assess the efficacy of control products. Two widely used white grub insecticides, imidacloprid and trichlorfon, gave 70-85% control regardless of application window. While not yet registered in NY, clothianidin, dinotefuran and indoxacarb gave 58-100% suppression across both seasons. Invasive crane fly control, however, may represent a whole new window of insecticide application for golf course superintendents, and therefore implies an increase in pesticide load and budget.

Species 1: Diptera Tipulidae Tipula paludosa (European crane fly)
Species 2: Diptera Tipulidae Tipula oleracea (European crane fly, marsh crane fly)

[ Recorded presentation ] Recorded presentation