Residue variability in pollen and nectar following application with different application techniques and at different sites

The aim of the experiments was to investigate pesticide residue profiles in different plant matrices following an application with cyprodinil and fludioxonil using different application techniques and under protected (glasshouse) and open field conditions. Courgette plants were sprayed during flowering with two active ingredients with systemic and contact properties. In the glasshouse the plants were sprayed either with an automated track sprayer or a hand-held sprayer. In the field, the plants were sprayed with a knapsack sprayer with boom. Nectar, pollen, anther, flower and leaf samples were taken daily over the course of 5 days. Samples were analysed for residues of both active ingredients using LC-MS/MS.