engleski

Sugar beet seed treatments with neonicotinoids: Do they pose a risk for bees?

In order to minimize the exposure of bees the uses as seed treatment and soil treatment of imidacloprid, thiamethoxam and clothianidin is prohibited for crops attractive to bees and for cereals except for uses in greenhouses and for winter cereals ((EU) 485/2013). Sugar beet is harvested before flowering, and not considered attractive to bees. Imidacloprid and thiomethoxam seed treatments ensures effective protection of young sugar beet plants from the most important pests in Croatia. The amount of insecticides used in sugar beet production after their introduction has been significantly reduced. The dynamic of degradation of imidacloprid and thiamethoxam during the whole vegetation in sugar beet plants is not known although results showed the residues of imidacloprid in sugar syrup were below LOD. Our year study aims to detect their degradation in sugar beet plants through the vegetation season and the final residues in sugar beet roots. The residues will be detected by high performance liquid chromatography (HPLC).

bees ; imidacloprid ; seed treatment ; sugar beet ; thiomethoxam

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