A comparative analysis of efficacy of Hand nets and Bowl Traps (bluish and yellowish) in collection of Hymenopteran Pollinators (Phylum: Arthropoda) from different Cash Crops of Irrigated Areas of District Bhakkar and Layyah, Punjab, Pakistan

Abstract

A detailed survey was carried out during 2015-2016 in irrigated areas of District Bhakkar and Layyah. The present research purpose was to compare the efficiency of bowl traps and hand nets (aerial nets) in the collection of hymenopteran pollinators. From each respective district eight hotspots were selected and each hotspot was further divided into four replicates and bowl traps containing detergent were used in each replicate and pollinators were collected by the help of bowl traps and hand nets. Bowl traps were highly significant in sampling of hymenopteran pollinators than hand nets. Sceliphron (23, 33), Delta (5, 4) and Vespa (4, 7) were sampled by hand nets only from district Bhakkar and Layyah. Andrena had total number of 58/ samples and 98/ samples respectively while Nomia showed the total abundance of 25 and 21 respectively, and were highly attracted towards the bowls traps in District Bhakkar and Layyah. Genus Apis, caught in the aerial nets, had total abundance of 83/ sample and 57/ sample in District Bhakkar and Layyah respectively.