Abstract
Effects of fenitrothion, malathion, lindane, dieldrin, diazinon, fenthion, chlordane and dichlorvos were evaluated by exposing Millipedes, Oxidus gracilis (Koch) to the residues of toxicants for 15 min., 1 hours or 7 days. The toxicants were applied with acetone solution containing 5% of the insecticides on filter paper at a ratio of 50ml per square meter. In these experiments the most effective insecticide was dichlorvos with the following in descending order : fenitrothion, diazinon, malathion and fenthion. Chlordane, lindane, malathion and dieldrin were found to be ineffective for the control of this pest.
