The development of a new cellulosic granular carrier (Biodac®) with characteristics somewhat different from the clay and botanical carriers presently used in the agricultural industry required further evaluation especially in regard to efficacy due to the extremely uniform distribution of the particles within the targetted range (see Figs.1&2). Tests conducted in 1995 in Arizona and in Pennsylvania, showed that 10% Trifluralin formulations prepared on clay and Biodac® performed as follows: Trifluralin on clay ≥ Biodac® 30/50 ≥ Biodac® 20/40 > Biodac® 16/30 >Biodac® 12/20. These data clearly show that the locus of activity for each unit area will be greatly decreased if a 16/30 or 12/20 Biodac® material is applied rather than a 20/40 or 30/50 material.
- Particle size
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