<prompt> Phlebotomus argentipes is killed byMalathionDDTBHCPyrethrum  <response>: DDT Dichloro-diphenyl-tricholoro ethane Organo-chlorine Synthesized by Zeidler 1874; Insecticidal propeies discovered by Noble prize winner Paul Miller 1939 Techincal DDT : 70-80 para-para isomer most active form Mechanism of action : Contact Nerve poison hours to kill Acetylcholinesterase inhibitor DDT had No repellant action but redidal action for 18 months Dosage : 100-200 mg per sq.ft Sandflies phlebotamus has not demonstrated resistance to DDT Ref : Park 25th edition Pgno : 812-813 