Ultra-low-volume applications of Premium-Sumithion at the dosage of 483$m\ell$ Per hectare by vehicle mounted ground LECO ULV generator have carried out in Sasang, Pusan to control Culex tritaeniorhynchus within about 75 hectares of this area in 1972-...
Ultra-low-volume applications of Premium-Sumithion at the dosage of 483$m\ell$ Per hectare by vehicle mounted ground LECO ULV generator have carried out in Sasang, Pusan to control Culex tritaeniorhynchus within about 75 hectares of this area in 1972-1973. Hignly effective adult reduction was obtained, and lasted for five days after treatment. In addition the residual activity of insecticide larger droplets in the mosquito breeding places reduced the larval populations in 1973. The logistic advantageous of early morning treatment over evening treatment are discussed.