TY  - JOUR
PY  - 2015//
TI  - Drift from the use of handheld knapsack pesticide sprayers in Boyacá (Colombian Andes)
JO  - Journal of agricultural and food chemistry
A1  - García-Santos, Glenda
A1  - Feola, Giuseppe
A1  - Nuyttens, David
A1  - Diaz, Jaime
SP  - 3990
EP  - 3998
VL  - 64
IS  - 20
N2  - Offsite pesticide losses in tropical mountainous regions have been little studied. One example is measuring pesticide drift soil deposition, which can support pesticide risk assessment for surface water, soil, bystanders, off target plants and fauna. This is considered a serious gap, given the evidence of pesticide-related poisoning in those regions. Empirical data of drift deposition of a pesticide surrogate, Uranine tracer, within one of the highest potato producing regions in Colombia, characterized by small plots and mountain orography, is presented. High drift values encountered in our study reflect the actual spray conditions using handled knapsack sprayers. Comparison between measured and predicted drift values using three existing empirical equations showed important underestimation. However, after their optimization based on measured drift information, the equations showed a strong predictive power for this study area and the study conditions. The most suitable curve to assess mean relative drift was the IMAG calculator after optimization.<p />  <p>Language: en</p>
LA  - en
SN  - 0021-8561
UR  - http://dx.doi.org/10.1021/acs.jafc.5b03772
ID  - ref1
ER  -