Show DESTROY ROADSIDE WEEDS because 1 they act as aa centers of weed infestation fe tor for adjoining fields 2 they may be carried tor for many miles by passing vehicles and ant malt 3 they harbor harmful insects and plant diseases 4 they create conditions 5 they are unsightly methods for or destroying roadside roads td weeds approved by specialists of the aa weeds along roadside harbor injury us insects and various plant als united states department of agriculture are uy by 1 mowing blowing twice a year while they are in full bloom usually in june find and august 2 utilizing th the roadsides tor for growl grow ing hay 3 grazing with tethered animals 4 converting weedy roadsides into lawns GRADE ALL ROADSIDES SO THE WEEDS CAN BE controlled |