full disclosure...i am not a farmer, i grew up in a farming community, where my family and childhood friends still live and farm their family farms. location, north west iowa..the heart of corn and soy bean farm land.
ONE...i do not turst anything that comes from mother jones...those folks have their tin foil hats pulled on too tight.
two...while i do not and would not use roundup on food crops, i think the whole GMO/roundup controversy is hugly over blown.
round up has been around and used for almost 30 years. in the early 1980's a large number of broad leaf weeds had become resistant or immune to 2-4-D..the favored weed control for over 30 years. because of this, roundup was developed to replace 2-4-D for broadleaf control, and elimination of weeds 2-4-D did not control.
at first, extream care had to be used to prevent any roundup from getting on the crop plants, as even one drop would kill the plant. things like rope wick applicators, and narrow band sprayers were developed. then monsanto developed the infamose roundup ready crops, and regular wide band spraying was back in wide use....
now, after almost 30 years of wide spread use, a large number of weeds have become resistant, or immune to round up, the favored weed control.....wait...haven't we heard this some where before??? oh, yea...see above.
some researchers have discovered that the broad leaf weeds that are now resistant to roundup can be easily controled by........2-4-D.......go figure.
maybe the farming community needs to suck it up and take a giant step baclwards...to old fashoned 4 crop rotating. if you grow corn in the same field for 5 years in a row, then beans for 5, then back to corn, is it any wonder the ground needs more and more expensive chemicals?? and at some point, there comes that state where no matter how much money you dump on the ground, yeilds cannot cover the cost.
however, if you did like granddad, and change crops every year, you greatly reduct the amount of pesticides, herbacides, and especially, fertalizer needed to be profitable.