Volatilization of fenpropimorph and clopyralid after spraying onto a sugar beet crop
Volatilization rates of pesticides were measured with two micrometeorological methods. For fenpropimorph, the highest rates (1.3-3.0% per hour) were measured in the first hours after application. The rate gradually declined to less than 0.01% per houron the sixth day. Clopyralid had much lower volatilization rates. They were highest (0.1% per hour) on the day after the day of application and declined below the detection limit (less than 0.01% per hour) on the sixth day after application. Rates calculated with the aerodynamic method were slightly higher than those calculated with the Bowen ratio.
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| Main Authors: | , , , , , |
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| Format: | External research report biblioteca |
| Language: | English |
| Published: |
DLO Winand Staring Centre
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| Subjects: | beta vulgaris, clopyralid, fenpropimorph, pesticide residues, spraying, sugarbeet, volatilization, fenpropimorf, pesticidenresiduen, spuiten, suikerbieten, vervluchtiging, |
| Online Access: | https://research.wur.nl/en/publications/volatilization-of-fenpropimorph-and-clopyralid-after-spraying-ont |
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| Summary: | Volatilization rates of pesticides were measured with two micrometeorological methods. For fenpropimorph, the highest rates (1.3-3.0% per hour) were measured in the first hours after application. The rate gradually declined to less than 0.01% per houron the sixth day. Clopyralid had much lower volatilization rates. They were highest (0.1% per hour) on the day after the day of application and declined below the detection limit (less than 0.01% per hour) on the sixth day after application. Rates calculated with the aerodynamic method were slightly higher than those calculated with the Bowen ratio. |
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