Table 4. Measured and Estimated DFR of Captan in the Apple Orchard during Sampling Conducted Outside the Kinetic Sampling Period.
| captan
DFR (ng·cm–2) |
||||
|---|---|---|---|---|
| sampling date | no. of days since the last treatment | maximum temperature (°C) | measured | estimated |
| May 18, 2018 | captan application (1.9 kg·ha–1) at 2 pm | |||
| July 5, 2018 | 48 | 25.8 | 127.4 ± 33.7 | 42.2b |
| July 23, 2018 | captan application (1.9 kg·ha–1) at 2 pm | |||
| July 26, 2018 | 3 | 36.2 | 1006.9 ± 37.6 | 709.1a |
| July 31, 2018 | 8 | 33.1 | 498.1 ± 155.2 | 368.6b |
| August 25, 2018 | captan application (1.9 kg·ha–1) at 2 pm | |||
| September 26, 2018 | 32 | 26.7 | 273.2 ± 17.1 | 100.4b |
a
Estimated from the phase 1 kinetic equation.
b
Estimated from the phase 2 kinetic equation.