Report 
  Title  
  DEGRADATION of PERMETHRIN in SOILS of LOW, NORMAL, and HIGH pH
  Key Words  
  Termiticide chemical analysis degradation
  Author  
  Harry N. Howell and Jr.
  Abstract  
  Soils of pH 5, 7, and 9 were treated with the equivalent of a commercial application of 0.50% permethrin. Over a period of 36 months post-treatment, the soil was analyzed to determine the concentration in parts per million of permethrin remaining in the soil. There was a significant difference in the concentration of permethrin over time. Generally, a significantly higher concentration of permethrin remained in the soils of pH 5.0 and pH 9.0.