How quickly is the active ingredient, nicarbazin, eliminated from soil and the environment?
Carbon 14-labeled nicarbazin studies have shown that the half-life of nicarbazin is approximately 49 weeks in field soil and 18 weeks in greenhouse soil. Studies of radio-labeled nicarbazin in field soil plots have shown that the nicarbazin incorporated into the upper 3 inches of soil does not leach through the soil beyond 6 inches in depth and slowly degrades over time.