A small plot pesticide evaluation system is described that includes a computer-controlled tractor-mounted spray system, an automatic pipetter for filling bottles used on the spray tractor, and a computer program for computation of amounts of adjuvants and pesticides to be added to a pre-set volume of carrier to result in a specific mixture concentration. Benefits of the system include fast, accurate mixing of chemicals in replicate, precise spraying of pesticide, computer-controlled rinsing of the system, and reduced operator fatigue.
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automatic pipetter,pesticide,computerized spray system