From 1984 to 1987, I worked full time for my farmer father who was a no-till corn producer. My duties included mixing the various herbicides for the sprays used to suppress weeds and grass in the corn fields. I also operated a tractor drawn herbicide sprayer. And I used a backpack sprayer to use herbicide to kill weed infestations in the field and along fence rows. I believe the latter was when I sprayed Roundup. All the herbicides we used were probably carcinogenic to one degree or another.
I was diagnosed CLL in 2003.