Editing Conium (section)

=== Economic impact ===
''Conium'' plants are poisonous to a variety of animals including cows, sheep, goats, swine, rabbits, elk, poultry, and humans. Some of the impacts of the consumption of these plants on animals include muscle spasms, diarrhea, depression, skeletal malformations, and death. In fact, the most important losses from ''Conium'' plants is through livestock toxicity. An estimated yearly loss of livestock to these plants in the western US was $340 million.<ref>{{Cite journal|last1=James|first1=Lynn F.|last2=Nielsen|first2=Darwin B.|last3=Panter|first3=Kip E.|date=January 1992|title=Impact of Poisonous Plants on the Livestock Industry|url=http://dx.doi.org/10.2307/4002517|journal=Journal of Range Management|volume=45|issue=1|pages=3|doi=10.2307/4002517|jstor=4002517|hdl=10150/644727|issn=0022-409X|hdl-access=free}}</ref><ref>{{Citation|last1=Nielsen|first1=Darwin Β.|title=Economic Considerations of Poisonous Plants on Livestock|date=2019-06-12|url=http://dx.doi.org/10.1201/9780429310225-2|work=The Ecology and Economic Impact of Poisonous Plants on Livestock Production|pages=5–15|publisher=CRC Press|isbn=978-0-429-31022-5|access-date=2020-12-04|last2=Rimbey|first2=Neil R.|last3=James|first3=Lynn F.|doi=10.1201/9780429310225-2|s2cid=199774349 |url-access=subscription}}</ref>

Although they are mostly found in non-crop fields, ''Conium'' plants compete with commercial agricultural plants, including several types of vegetables and grains. It has been found growing in corn, chickpea, vegetable, and orchard fields. Regions affected include [[Oceania]], the [[Iberian Peninsula|Iberian peninsula]], central Europe, and the United States. Economic losses of crops due to Conium invasion is not as widespread or severe as its affecting of animals farms, and there is little crop loss data available from those regions.<ref name=":3" />