Abstract
Penetration ability into the soil layer of 1-naphthyl N-methylcarbamate formulated as a commercial insecticide and decomposition of this compound in soil within a month were studied in laboratory experiments.
The results were summarized as follows:
(1) Penetration ability of this insecticide was similar to that of other several commercial inscticides.
(2) On upland condition the rate of decomposition was higher than the rate under submerged condition.
(3) On-upland condition the rate of decomposition was considerably accelerated by soil microorganisms.
(4) On the comparison between wettable powder and dust, the rate of decomposition was hardly influenced by the difference of formulation.
