preharvest interval
residues
coffee innocuity
Café verde
período de carencia
residuos
inocuidad del café
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This research was carried out in order to determine if the pesticide applications recommended by Cenicafé leave residues in green coffee that surpass the Maximum Residue Limits (MRL) allowed by the United States, Europe and Japan. Coffee crops with similar numbers of coffee trees were selected in three Experimental Stations and two coffee farms in the Colombian central coffee region. Chlorpyrifos, thiamethoxam, chlorantraniliprole, cyantraniliprole, spiromesifen, cyproconazole, pyraclostrobin, flutriafol, carbendazim, oxyfluorfen, glifosate, glufosinate-ammonium, 2,4-D amine and diuron were evaluated in a randomized complete block design with four replications and one control without pesticide. Each pesticide was evaluated in three locations for a total of 12 replications. The pesticides were used in the form and concentration or doses recommended by Cenicafé. Two moments were evaluated: the pesticides application the day before the preharvest interval (PHI) and half the way through the process. In each place the coffee harvesting was gathered the same day and the coffee berries were immediately sent to be wet processed with pipe water and dried in marquees at the Naranjal Experimental Station. The green coffee samples were stored at -20 °C up to the moment in which they were sent for analysis. The results showed that if the evaluated pesticides are used as recommended by Cenicafé, they do not surpass the MRL in green coffee. However, there is a risk of surpassing MRL if pesticides are used after the preharvest interval.
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