抄録
A study for controling weeds in paddy fields was made using 2.4.5-T, which was synthesized from the isomer except γ contained in the insecticide BHC. For practical use 60-70g of 2.4.5-T should be applied per tan(990m2)at about three weeks after transplantation. It is requested however to cultivate the sore and weed instrumentally twice and moreover to draw off by hand the Japanese barnyard millet (Panicum Crusgalli L, var, submuticum MEY.) prior to the application of 2.4.5-T. The controling effect given in the plots treated with 2.4.5-T we are less than that in of thet treated with 2.4-D.
