Click on to these sites to see both explainations and pictures of some of the symptomology of some of the more common families of herbicides. Even though some are on sugar beets and you may have never seen a suger beet, the synptoms expressed are the same.
Herbicides: How They Work and the Symptoms They Cause - PDFof B-6081 -
by Paul A. Baumann, Peter A. Dotray and Eric P. Prostko
Knowing how herbicides work and how to use them safely is important for both agricultural producers and home gardeners. This publication describes the symptoms of each category of herbicides (growth regulators, photosynthesis inhibitors, etc.), and lists products by their common and trade names. (12 pp., 24 photos)
Introduction to Herbicides
Handout
This handout covers the basic principals of how herbicides work.
Seven herbicide groups are reviewed including mode of action,
families that exhibit this mode of action, example injury symptoms,
and some compounds on the market. There is a glossery, a discussion
on how to avoid developing herbicide resistance, and a post test.