<prompt> Insecticide of choice for sandfly ?DDTHCHMaiathioneParisgreen  <response>: Ans. is a i.e., DDT o Resistance to DDT has not been demonstrated in sandflieso A single application of DDT or lindane has been found effective in reducing sandflies,o DDT residue may remain effective for a period of 1 to 2 years and lindane only for a period of 3 months.Arthropods showing resistance to DDTArthropods showing no resistance to DDTo Houseflies e.g., Musca domesticao Moquito Culex, Anopheles, Aedeso Flearrat flea, Sand fleao Lice Pediculus capitiscorporis, Phthirus pubiso Ticks Miteso Sandltes Phlebotomuso Tsetse flies Gluossianae 