1. TRIALS OF FLUORESCENT TRACERS FOR INSECTICIDES IN SOIL.
- Author
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Staniland, L. N.
- Subjects
INSECTICIDES ,PESTICIDES ,SOILS ,DUST ,TRACERS (Chemistry) ,CHEMICALS - Abstract
This paper describes the use of fluorescent materials for tracing insecticides in soil. The mixing of insecticide dusts with dry, finely sieved soil in the laboratory has shown that the concentrations of a toxic chemical available to a soil insect will vary greatly according to the depth of soil with which it has been thoroughly mixed. The state of the soil also affects the distribution of the material; if the soil is dry it can be evenly distributed, though frequently it is not. When the soil is damp and has a fine crumb structure, a dust becomes distributed on the outside of the individual crumbs. Subsequent mixing of the soil distributes the contaminated crumbs throughout the mass, but this does not result in transfer of the dust to other crumbs; the result is uneven distribution.
- Published
- 1961
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