Abstract

Pollination by bees improves agricultural crop yields and improves the financial outlook of beekeepers because it increases honey production and hive rental revenues. However, in Brazil, with a few exceptions, these benefits have been neglected in recent years because beekeepers are more interested in honey production than in agricultural pollination. The excessive and indiscriminate use of insecticides on agricultural fields in Brazil appears to be one of the principal obstacles preventing partnership between farmers and beekeepers. The goal of this study was therefore to evaluate the most recent situation in Brazil in relation to the use of insecticides, agriculture and to honey production in comparison with other countries. Our results show that Brazil is the largest consumer of insecticides in the world and that consumption has increased by > 150% over 15 years. While countries with a high Human Development Index (i.e., a measure that can also be used to question national policy choices) are reducing their levels of insecticide use in agriculture, Brazil is going in the opposite direction. It is highly likely the increase seen in other countries is a result of alternative methods for pest control rather than a result of the amount of area under agricultural cultivation and their capability to shift their economies from agriculture to other sectors. The number of hives (23%) and the volume of honey production (72%) in Brazil have, however, increased over the same period, raising Brazil to the ninth highest honey producer in the world. Although the data on apiculture are promising, the growth in use of insecticides in Brazil is a cause for concern because they leave residuals on bee products, on crops, and in the environment. Civil society and government in Brazil should encourage reductions in insecticide use and better relations between agricultural farmers and beekeepers.

Highlights

  • Bees contribute to the cross-pollination of many plant species [1]

  • When agricultural area is proportionally considered, we can see that insecticide use by Brazil is relatively low compared to other countries (Fig 1B)

  • When the total size of the agricultural area of these same countries is considered against its allocation to organic farming, we did not find any relationship between these variables (F(1,32) = 1.88, p > 0.05, R2adj = 0.02, Fig 2C)

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Summary

Introduction

Bees contribute to the cross-pollination of many plant species [1]. These insects play an important role in agricultural systems as agents of pollination, thereby contributing to improving the yields of crops [2]. It is known that we are currently facing a global pollination crisis [3]. This crisis threatens a deficit of pollinators (e.g., bees) able to meet the demands of agricultural crops [4]. Recent works have demonstrated that biodiversity loss related to functional.

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