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Honeybees are important for food security and biodiversity preservation. There has been a collapse of the colonies caused by exposure to pesticides. The aim was to determine and quantify the presence of pesticides in honey and wax from bee colonies, under collapse (BC) and with (CA) and without antecedent of collapse (SA). Five honey samples and five colony wax samples were analyzed from colonies CA y SA, as well as two of honey and two wax from colonies CB; samples were analyzed by LC-QTOF and GC-MS/MS. 24 pesticides were detected in honey and wax analyzed. Acetamiprid was found in all samples. In colonies, CB the wax and honey had high averages levels of acetamiprid (0.402 and 0.633 mg kg(-1) respectively). For wax and honey from colonies CA, the averages of acetamiprid were 0.686 and 0.266 mg kg(-1) respectively. In wax and honey from colonies SA the averages of acetamiprid were 0.234 and 0.404 mg kg(-1) respectively. In conclusion, the colonies CA had the greatest diversity of pesticides, followed by the group SA and finally BC. Our results suggest the participation of pesticides as a cause of colony collapse.

Residuos de plaguicidas en miel y cera de colonias de abejas de La Comarca Lagunera