Evaluating a filtering and recirculating system to reduce dust drift in simulated sowing of dressed seed and abraded dust particle characteristics

Autor: Daniele Pochi, Pietro Gallo, P. Pulcini, Francesca Marcovecchio, Cinzia Perrino, Roberto Fanigliulo, Marcello Biocca
Rok vydání: 2016
Předmět:
Zdroj: Pest Management Science. 73:1134-1142
ISSN: 1526-498X
Popis: BACKGROUND The pneumatic precision drills used in maize sowing can release dust owing to abrasion of dressed seed; the drift of dust containing insecticide active ingredients is harmful to honey bees. Therefore, we developed a device for drills that uses partial recirculation and filtration of the air by means of an antipollen and an electrostatic filter. RESULTS Tests were carried out by simulating the sowing of seed treated with imidacloprid, thiamethoxam, clothianidin and fipronil. Dust released by the drill in different configurations was analysed to assess its mass and active ingredient concentration, size distribution and particle number concentration. In general, particles with a diameter smaller than 2.5 and 10 µm represent about 40 and 75% of the total dust mass respectively. The finest size fraction (
Databáze: OpenAIRE