When the target scent was DNT, in average 61.19 bees were crossing targets, and 42.64 controls. The average number of landing bees was 9.72 on TNT and 2.78 on controls. In average, 29.22 bees were crossing above TNT and 28.69 bees above control targets. Landing bees need to touch or sit on any part of the target. Crossing bees were counted in the area of 20 cm above the target. Six observers counted bees crossing and/or lending on the six targets, from which three targets were with and three without scent (control).
For the training and testing of bees, artificial targets were designed. Majority of the experiments was carried out in a period from April to July 2012. After preparation of the testing mesh tent and feeders, 10 training and testing trials were performed. Experiment was focused on the conditioning of the Apis mellifera carnica colony to search for DNT and TNT scent in controlled environment.
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