Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu
Trap catches of SWD adult flies remain constant in most trapping locations throughout the state. Unfortunately, there are no thresholds available based on trap catches. Small fruit growers (especially bramble and blueberry growers) will need to maintain their spray schedules for this very damaging insect pest. Information from surrounding states indicates that they are seeing the same trend. The following links from the University of Maryland and Rutgers University provide good information on monitoring and management options:
http://plant-pest-advisory.rutgers.edu/fruit-ipm-report-7-9-2015/