Section of Entomology, Department of Zoology, Aligarh Muslim University, Aligarh - 202 002, UP, India.
*Corresponding author's address: Science Section, Faculty of Unani Medicine, AMU, Aligarh - 202 002; E-mail: tsharma20@rediffmail.com.
Studies on the relative toxicity of cypermethrin, malathion, methyl parathion and monocrotophos against adults of Dysdercus cingulatus (Fabricius) revealed that methyl parathion was most effective (LC50=0.437) and monocrotophos was the least effective.