Effects of DDT and BHC on Soil Arthropods

UNDESIRABLE changes in the composition of animal communities after applications of insecticides have become increasingly common phenomena since the widespread use of the more persistent chlorinated hydrocarbons1. With the view of throwing further light on this problem, the insecticidal treatment of soil was considered to be a convenient experimental technique, as special attention could be paid to the effects of the insecticides on the dominant soil arthropods, namely, Collembola and Acari.