Abstract
Carbofuran-14C was absorbed readily from solution by the roots of 1-month-old tobacco plants and translocated to the leaves without accumulation in the roots. Autoradiographs of freeze dried plants indicated 14C-radioactivity accumulated to a greater concentration in the larger (older) leaves than in the region of the terminal bud. Initial accumulation of 14C in these large leaves was in a mottled pattern between the lateral veins. This pattern became more pronounced during the 1st 2 days, but by the 4th day there was a marked accumulation of radioactivity around the leaf margins. Carbofuran-14C was not absorbed readily through the leaves of 1-month-old tobacco plants, and that which was absorbed was not translocated out of the treated leaf to other parts of the plant.
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