2000 Report on Thrips Biological Control Demonstration in Orange and Ulster Counties
MacAvery, Susan; Rusinek, Teresa; Couch, Gary
The predatory mite Neoseiulus cucumeris has been successfully used to control thrips for three consecutive seasons in the retail portion of a greenhouse range participating in the scouting program. Demonstrations over the past four years with N. cucumeris in Orange County have provided educational opportunities for growers, extension staff and researchers. In 1999, we expanded the thrips predator demonstration from one retail greenhouse to three production greenhouse operations, in Ulster and Orange Counties. We worked closely with growers and cooperators to share our past experience as well as to gain information on biological control systems using N. cucumeris in commercial greenhouse settings. In 2000 we compared two application methods, sprinkle vs. sachet, and also investigated the use of Hypoaspis miles in combination with N. cucumeris. Preliminary results suggest that the sprinkle method provided better thrips control than the sachet method, and the addition of Hypoaspis provided improved control of thrips at one greenhouse operation.
New York State IPM Program
Agricultural IPM; Greenhouse; Biocontrol