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Upward and Lateral Translocation of Benomyl in Strawberry. J. F. Nicholson, Graduate Research Assistant, Department of Plant Pathology, University of Illinois, Urbana 61801; J. B. Sinclair(2), J. C. White(3), and B. L. Kirkpatrick(4). (2)Professor, Department of Plant Pathology, University of Illinois, Urbana 61801; (3)Professor, Department of Botany and Bacteriology, Louisiana Tech University, Ruston 71270; and (4)Graduate Research Assistant, Department of Plant Pathology, University of Illinois, Urbana. Phytopathology 62:1183-1185. Accepted for publication 27 April 1972. DOI: 10.1094/Phyto-62-1183.

Root uptake and translocation of benomyl and its breakdown product, methyl-2-benzimidazolecarbamate (MBC), was studied in cultivated strawberry (Fragariae × ananassa 'Tioga') in single plants and in two stolon-connected plants. Treatment of roots of single plants with 1,000 mg/liter benomyl for 24, 48, or 72 hr resulted in upward translocation of benomyl or MBC to the growing point and throughout all tissues except those of newly emerged leaflets. Treatment of the roots of either a daughter plant or mother plant connected by a single stolon with 1,000 or 2,000 mg/liter benomyl for 96 hr resulted in translocation of benomyl or MBC through the stolon to nontreated tissues of the other plant. Translocation from the daughter plant through the stolon to mother plant tissues was considered "lateral" translocation of the fungitoxic compounds.