Show NOW new chom 1041 weapons weapon Tv to combat wood weed posts pests farmers and householders waging war on crab grass and other troublesome weeds and grasses can look for or help from two new weapons the weed killing chemicals chemical bear tho the lawbreaking law jaw breaking names of sodium isopropyl and mixed chloro phenyl carbonate they have been tested by federal I 1 and state agricultural cultural experiment stations with excellent results against many weeds and grasses not economically no or satisfactorily controlled by other chemicals or practices t the tha announcement said they are being uselin used in active experimental programs but are not yet avail ablo abla commercially the tha second named herbicide Is the one that combats crab grass as well as barnyard orchard and blue grass catt cattat alls ls and similar plants it ha has a hormone liko like action which attacks attack s the root structure of the weed and arrests growth immediately by preventing seed development even ever though no effect Is apparent on ion the surface tor for the first week or longer it also Is used effect dively in combination with 2 4 D against some broad leaved weeds not affected by 24 2 ld D used alone the 1 sodium isopropyl xen Is described as a complete killer which filch should not be applied directly I 1 to chop crop plants it shows promise for pro emergence treatment in spray or dust form and has been used with success in the chemical weeding oi of growing crops |