I had a few acres of beans that got planted late because the ground was really wet this spring. They're a little behind the other beans in the field, so of course, I have weeds growing in them like crazy. Instead of paying someone to come spray 7 acres, I decided to do it with Grandpa's 3020 and 3 point sprayer. It was a little warm, but I got the job done. Hopefully, all the weeds and grass die. If you let them go, they'll choke out the beans. If those weeds cost you 10 bushels an acre over 7 acres with beans going for $12/bu, you're looking at a loss of $840. I think I can sweat a little bit for that.
In case you're wondering, we put a quart (32 ounces) of Roundup on per acre. An acre is 43,560 square feet. This is mixed with water at a rate of 10 gallons an acre. Basically, we put a lot of water on with a little bit of Roundup. Our fields are not drenched in chemicals, as many people would have you believe. Did you know chemicals have a recommended rate? If you go over this rate, you may burn or kill your crop and it can cause weeds to become resistant to the glyphosate, so it's not in our best interest to drown weeds in Roundup.