Weeds and Their Control: Bermudagrass (Cynodon dactylon)
Karen Bermudagrass is a perennial grass native to India and Africa and was introduced into North America in 1751. It is now found in most of the continental United States and…
Weeds and Their Control: Barnyard grass (Echinochloa crus-galli)
Barnyard grass is a summer annual native to tropical Asia but is widespread now in Europe as well as the United States. It grows in all states except Alaska and…
Weeds and Their Control: Poison Ivy (Toxicodendron radicans)
Poison ivy is a perennial native to eastern, and mid-western United States and is found in all U.S. states east of the Rocky Mountains. It grows well in shaded areas…
Weeds and Their Control: Quackgrass (Agropyron repens)
A rough looking cool weather perennial, quackgrass is a native of Europe, Asia and northwest Africa that was introduced into the United States for forage or as a contaminant in…
Weeds and Their Control: Common Sorrel (Rumex acetosella)
Common sorrel is a short-lived perennial weed also known as sheep sorrel and red sorrel. It is a native of Europe and Asia and probably came to America in the…
Weeds and Their Control: Redroot Pigweed (Amaranthus retrofluxus)
Redroot pigweed is a summer annual native to tropical America but grows throughout the United States including Alaska and Hawaii and is considered a noxious weed in some states. It…
Weeds and Their Control: Jimsonweed (Datura stramonium)
The origin of jimsonweed is unclear; it may have come from tropical Asia or America but is now found throughout the world including most of the United States. It is…
Weeds and Their Control: Prickly Sida (Sida spinosa)
The origins of prickly sida are obscure but the general feeling is that the plant is a native of tropical America. It has spread to many semi-tropical and tropical areas…
Weeds and Their Control: Crabgrass (Smooth, Digitaria ischaemum; large, Digitaria sanguinalis)
There are many kinds of crabgrass but the two that are the most prevalent in the United States are smooth crabgrass and large crabgrass. They are very similar in appearance…
Weeds and Their Control: Pepperweed (Lepidium virginicum)
Peppercorn is an annual native to North American and found all over the United States including Alaska and Hawaii. A relative of the mustard family it is related to broccoli,…