Sugarbeet root maggot is the most important insect pest of sugarbeet in the Red River Valley of Minnesota and North Dakota. Populations are monitored annually, this effort traditionally utilizes 100-200 locations being monitored with sticky stake traps. We used historical trap data to refine monitoring effort for sugarbeet root maggot, attempting to decrease sampling effort. We focused traps in areas that had 1) traditionally had higher populations of SBRM, and/or 2) provided an evenly spaced grid of samples across the sugarbeet production area. Point sample maps were prepared in the ArcGIS 8.2, checked for spatial autocorrelation and interpolated surface maps were prepared that estimated the distribution and density of SBRM in the region. Counts were taken twice weekly and resulting maps were provided growers and IPM practitioners via a WWW site. The optimum number and location of sample sites was evaluated.
Species 1: Diptera Otitidae Tetanops myopaeformis (Sugarbeet root maggot)
Keywords: pest management, modelling
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