Degradation of Lindane and Imidacioprid in Soil by Calocybe Indica

The ability of Calocybe indica, to degrade lindane and imidacloprid was studied in a sandy loam soil. C. indica grew well in lindane and imidacloprid fortified soil, but growth rate decreased with increase in concentration of the insecticides. In the initial stages C. indica did not accelerate the degradatton of lindane, but after 40 days about 24% lindane degraded from the fungus inoculated soil compared to 12% from uninoculated. The half-life of degradation varied from 279.0–393.8 days in un-inoculated in comparison to 134.4–145.0 days in inoculated soil. The fungus accelerated degradation of imidacloprid in soil to a great extent and at lower concentration it was more pronounced. After 40 days of inoculation 54.7, 46.2 and 34.0% imidacloprid degraded from C. indica inoculated doil aa sompared to 27.0, 24.5 and 23.0% from uninoculated soil at imidacloprid concentration level of 0.2.2.0 and 20.0 μg g⁻¹, respectively. The half-life of degradation varied from 113.0–132.7 days in un-inocuiated as compared to 37.6–77.6 days in inoculated soil.