A device for pneumatic precision drills reducing the drift of the abrasion dust from dressed seed

Comparing different techniques to assess the risk of dust drift from pesticide‐coated seeds

“…Also, based on the estimated air velocities in the glass cylinder at the prescribed air flow rate (±0.04 m s −1 ], it seems unrealistic to optimise the protocol with the current design of the Heubach dust meter. This air speed in the glass cylinder is much lower than the air speeds measured around stationary operated machines and in semi‐field and field conditions . In view of the above, it seems more convenient and appropriate to use one of the proposed alternative set‐ups to estimate the total dust load abraded during the drilling process and its driftable fraction.…”

“…To get an idea of the size and shape of the particles considered by the Heubach protocol, the filters could be examined with image acquisition systems and subsequent analysis, e.g. scanning electron microscopy or micrographs . Bach and Schmidt and Pensis et al .…”

“…scanning electron microscopy 39 or micrographs. 40 Bach and Schmidt 28 and Pensis et al 26 also mentioned mounting an aerosol sampling device to segregate the dustiness mass fraction between respirable and inhalable dust. Once more, this illustrates that the Heubach method is mostly used to look at the health-related dust fraction where only particle matter with an aerodynamic diameter of up to 100 μm is relevant.…”

“…This air speed in the glass cylinder is much lower than the air speeds measured around stationary operated machines 1,16 -18,37,50,51 and in semi-field and field conditions. 16,20,40,50,52,53 In view of the above, it seems more convenient and appropriate to use one of the proposed alternative set-ups to estimate the total dust load abraded during the drilling process and its driftable fraction.…”

The role of field dust in pesticide drift when pesticide‐treated maize seeds are planted with vacuum‐type planters

“…tested a filtering recirculating system that was around 85% effective in reducing fugitive dust. Pochi et al . and Manzone and Tamagnone showed that filtering the exhaust approached 100% effective.…”