Experimental and Applied Testing of Yellowjacket Trapping Efficacy in Upstate New York; Summary of Work to Date
Our study design consisted of two plots several hundred yards apart from each other in open fields. Each plot was a square 100 feet by 100 feet. Trapping stations were established at twenty-foot intervals around the perimeter of each plot (Figure 1).
Each station consisted of a 10-foot length of 3/4-inch conduit pipe driven into the ground. Yellowjacket container traps were attached to the top of these poles (Figure 2).
Each plot also had a triplet of trap stations in the center (Figure 1). During a two-week long testing trial, traps were maintained on all poles (periphery and center) on one plot but only on the center poles in the second plot. Plots were alternated from trial to trial. In other words, in the first trial, Plot A had traps on both the periphery and center while Plot B had traps only in the center. In the second trial, Plot A had traps only in the center while Plot B was trapped on both the periphery and center. In the third trial, the plots were switched again and so on for a total of four or five trials per year.
In 2001 and 2002, the trapping trials were conducted at the same locations at the NYS Agricultural Experiment Station in Geneva, NY. In 2003, the locations were changed to private land near Canandaigua, NY. In all three years, the trials were started in August and extended into October. Following is a summary of the major findings to date.