Canadian Forest Service Publications

Penetration translocation and metabolism of C-14 aminocarb insecticide in conifers.Part 3: Biochemistry of pests and mode action of pesticides.1979. Sundaram, K.M.S. Advances in Pessticide Science. 416-419.

Year: 1979

Issued by: Great Lakes Forestry Centre

Catalog ID: 34033

Language: English

CFS Availability: PDF (request by e-mail)

Mark record


Gas-liquid chromatographic (GLC), liquid scintillation and autoradiographic studies on the translocation, persistence and fate of carbonyl C-14 aminocarb (4-dimethylamino-m-tolyl methylcarbamate) insecticide in white spruce [Picea glauca (Moench) Voss] trees under normal weathering conditions of a forst environment in Canada, showed that the chemical was apoplastically accumulated by xylem transport in branches and foliage when applied by trunk implantation treatment (TIT). The major route of translocation of the radiolabel is acropetal, from the old to the newly developing foliage. The residue levels were low when applied by foliar painting (FP) and insignificant in basal bark painting (BBP). The absorbed aminocarb in TIT was gradually lost with time probably due to hydroxylation forming water soluble metabolites some of which became persistent due to their incorporation into cellular structure of the foliage. The mechanisms of dissipation of the insecticide from the treated surfaces in FP technique appeared primarily due to physical rather than metabolic processes. The material is found to be weakly systemic and labile.