DEGRADATION STUDIES OF COMMONLY USED PESTICIDES IN BANANA PLANTATIONS IN THE CANARY ISLANDS
Eight trials to determine the degradation curves for nine pesticides are presented and discussed. The products studied were: diazinon 60% EC, dimethoate 40% EC, pirimiphosmethyl 50% EC, fenitrothion 50% EC, malathion 50% EC, methyl-parathion 24% CS, quinalphos 24% EC, trichlorfon 80% SP and chlorpyrifos 48% EC. The trials were conducted throughout the year at different crop stages both in open air and under greenhouse cultivation. The pesticides were sprayed using a low pressure system. Analyses of plant material (fruit) were done at times T-0, T+0, T+7, T+14, T+21 and T+28 (T+/-n refers to time in days since treatment). Results indicate that after a period of 7–14 days, the legal MRL (maximum residue level) of Spain was exceeded for the following substances: methyl-parathion, pirimiphos-methyl and quinalphos.
Otazo Glez, C., Gonzalez Hernández, A., Ortega Rodríguez, M.P., Martín Suárez, R. and Gamón Vila, M. (1998). DEGRADATION STUDIES OF COMMONLY USED PESTICIDES IN BANANA PLANTATIONS IN THE CANARY ISLANDS. Acta Hortic. 490, 395-406
Phytosanitary, Dissipation curves, Musa