Analysis of thiamethoxam in bee tissue and pollen by LCMSMS and environmental risk assessment of insecticide thiamethoxam applied to strawberry cultivation on bees Apis mellifera L. and Tetragonisca angustula Latreille (1811)

• Grant number: 18/16244-0
• Support type: Regular Research Grants
• Duration: April 01, 2019 - March 31, 2021
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Eny Maria Vieira
• Grantee: Eny Maria Vieira
• Home Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Thiamethoxam is considered a second generation of neonicotinoid insecticide, widely used in a variety of crops in Brazil and worldwide. Like other nenicotinoids, its toxic effect on the health of pollinating agents has been widely described in the literature and associated with the effects of disorders observed throughout the population, with harmful consequences for agriculture and especially for the survival of the species. The present project aims at the environmental risk assessment of Apis mellifera and Tetragonisca angustula species exposed to thiamethoxam and determination of this insecticide in samples of strawberry pollen and bees. The chemical determination will be optimized using the QuEChERS methodology and LC-MS / MS analysis. The toxic effects will be investigated from acute and chronic exposure, involving different stages of development of bees (adult and larvae) and use of biomarkers of exposure. Palynological analyzes of T. angustula's food preferences will confirm the risk associated with strawberry crops. The risk characterization will then be determined from the risk quotient (QR) calculated from data obtained in this study (determination and toxicity). Thus, it is hoped to contribute to the scientific knowledge involving the impact of this insecticide on the species investigated and the possible adoption of mitigating measures in case of confirmed environmental risk. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RIBEIRO DO PRADO, FERNANDA SCAVASSA; DOS SANTOS, DAYANA MOSCARDI; DE ALMEIDA OLIVEIRA, THIESSA MARAMALDO; MICHELETTI BURGARELLI, JOSE AUGUSTO; CASTELE, JANETE BRIGANTE; VIEIRA, ENY MARIA. Determination and uptake of abamectin and difenoconazole in the stingless bee Melipona scutellaris Latreille, 1811 via oral and topic acute exposure. Environmental Pollution, v. 265, n. B OCT 2020. Web of Science Citations: 0.