Vegetables

Problem Weeds

Species photos below link to species specific pages for identification and management many problematic weeds. The text section after these species below provides links to other problem species available from extension services around the US.

Horsenettle (Solanum carolinense)

Fall panicum (Panicum dichotomiflorum):

Identification guide by University of Missouri’s Division of Plant Sciences: https://weedid.missouri.edu/weedinfo.cfm?weed_id=197

Conventional management information provided by Cornell University:

https://turfweeds.cals.cornell.edu/plant/fall-panicum 

Hemp dogbane (Apocynum cannabinum): 

Identification guide by the Virginia Cooperative Extension: https://www.pubs.ext.vt.edu/450/450-140/450-140.html

Conventional management information provided by Virginia Cooperative Extension: https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/450/450-140/450-140_pdf.pdf

Non-chemical management provided by Farms.com: https://www.farms.com/field-guide/weed-management/hemp-dogbane.aspx

Tall waterhemp (Amaranthus tuberculatus): 

Identification guide by Cornell University.

Information on cover crops for waterhemp management provided by Practical Farmers of Iowa.

Additional Common Weeds

Common milkweed (Asclepias syriaca): Perennial weed that is toxic to livestock, although it is not commonly consumed unless animals are in overgrazed pasture or otherwise short on food resources. Milkweed is also a critical food resource for monarch butterflies, and is becoming scarce in agricultural regions. Iowa State University has a milkweed identification resource, and Washington State University’s Whatman County extension has information on milkweed management.

Eastern bluegrass

Galinsoga

Hairy nightshade

Crabgrasses