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research article

Drift of sprays, dusts, spores: Radioactive tracers used in determining distribution pattern of small airborne particles


R. N. Colwell, Forestry and Assistant Silviculturist in the Experiment Station

publication information

California Agriculture 3(8):5-12. DOI: 10.3733/ca.v003n08p5. August 1949.


Not available – first paragraph follows:

Spraying and dusting of agricultural crops with insecticides, fungicides, herbicides, hormones or fertilizers can be made more effective through accurate information as to the distribution pattern obtainable under various sets of conditions.

author affiliations

R. N. Colwell is Assistant Professor of Forestry and Assistant Silviculturist in the Experiment Station, Berkeley.

author notes

The above progress reports is based on Research Project No. 1344.