Mobility of avermectin B1a in soil

• Published in: Journal of agricultural and food chemistry Vol. 38; no. 3; pp. 886 - 890
• Main Authors: Gruber, Virginia F, Halley, Bruce A, Hwang, Shu Chen, Ku, Chia C
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.03.1990
• Subjects: ANALISIS DEL SUELO; ANALYSE DE SOL; ANTIBIOTICOS; ANTIBIOTIQUE; Biological and medical sciences; Chemical control; Control; Fundamental and applied biological sciences. Psychology; LESSIVAGE DU SOL; LIXIVIACION; Phytopathology. Animal pests. Plant and forest protection; PROCESOS DE TRANSPORTE EN EL SUELO; Protozoa. Invertebrates; SORCION; SORPTION; TRANSPORT DANS LE SOL; Sorption; Soils; Mobility; Lactone; Lixiviation; Chromatographic properties; Labelled compound; Microbial insecticide; Macrocycle
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/jf00093a063

Avermectin B1a (AVM) was determined to be immobile in soil by three methods: sorption/desorption using a batch equilibrium technique, soil thin-layer chromatography, and soil column leaching using aged and unaged soil. From the sorption data from batch equilibrations of AVM with three soils, the Koc (distribution constant normalized to the percent organic matter) for AVM was determined to be 4.76 X 10(3). When ascending chromatography was performed on TLC plates prepared with six different soils, average Rf values for AVM and 2,4-dichlorophenoxyacetic acid, a pesticide of known mobility, were determined to be 0.00 and 0.78, respectively. Also, AVM did not readily leach from four soils in soil column leaching studies