Laboratory Evaluation of Soil Poisons Used in Termite Control

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Abstract
The use of soil poisons for the control of subterranean termites has been rapidly expanding in the past few years. It is known that the materials in most common use are of very limited effective duration in the soil. Up to the present time, however, the evaluation of possible new poisons has been rendered difficult and slow due to the fact that the customary field tests duplicating actual practice must run for a period of years before any indication of the merit of a chemical is obtained. A laboratory method that would in a short period of time give some basis for the elimination of the least promising of the new chemicals would greatly speed up developmental work. It is not anticipated that any laboratory method of evaluation will replace field tests, but it is hoped that the method herein described will prove to be a valuable supplement to the field tests.

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