TOXICIDADE DE DIFERENTES DOSAGENS DE NEONICOTINÓIDES PARA CITRUS EM ABELHAS Apis mellifera

Abstract

The intensification of agriculture which contributed to on increasement of food production occurred also on increasement of pesticide usage to control plagues which affect cultures. Without pollinators many plants could not reproduce neither could produce seeds, and the population which depend on that declined, through human food depends on pollinated plants or benefited by animal pollination. To eradicate these plagues, producers use pesticide, which acts not just in the specific plague, but also in beneficial insects, since these are incorrectly used. The contamination appears by contact and/or intake off collected products on flowers during foraging and intake in the colony inner part, causing lethal effects and sublethal on bee population. Neonicotinoids cause behavioural changes on bees like: changing on foraging activity and food collection, loss off communication in the location of nutritional source, seizures, paralysis, disorientation of return flight to hive. The work was done with the aim to determine the usage of right agrotoxic closes to citrus used to control several plagues and evaluate the impacts that high dosis cause to bees which are responsible by pollination achievement of the cultures. It was used Provado ES (Imidacloprid), presented bees to flowers (field) and food (laboratory) whith different levels after 24h.48h and 72h.The remarks clapsed for 5 hours and data were subjected to regression analysis. It was determined through this work which flowers and food being polluted or not, are compelling to bee and like have a bigger chance of contamination and realize the intensity of lethal and sublethal effects that pesticides causes on bees are very important to a bether comprehension of bee’s biology and their adaptation on affected ecosystem by these products, detecting range in the environment therefore understand the impact have over pollinators diversity and, hense, about pollination process.