Penn State Weed Fact Sheets
These weed bulletins were written in a two-series set of 16 each (32 total) back in the 1980’s by Dr. Thomas Lanini and Ms. Betsy Ann Wertz. They are no longer available in hardcopy format. Although some of the chemical management information is no longer current, the biology is still very relevant. We hope you find them useful.
Fact sheets arranged alphabetically
- Barnyardgrass (Echinochloa crus-galli (L.) Beauv.)
- Bindweed, field (Convolvulus arvensis L.)
- Buckwheat, wild (Polygonum convolvulus L.)
- Burdock, common (Arctium minus (Hill) Bernh)
- Carrot, wild (Daucus carota L.)
- Chickweed, common (Stellaria media (L.) Vill.)
- Chickweed, mouseear (Cerastium vulgatum L.)
- Cocklebur, common (Xanthium strumarium L.)
- Coltsfoot (Tussilago farfara L.)
- Crabgrass, large (Digitaria sanguinalis (L.) Scop.)
- Dandelion, common (Taraxacum officinale Weber in Wiggers)
- Dogbane, hemp (Apocynum cannabinum L.)
- Foxtail, giant (Setaria faberi Herrm.)
- Foxtail, green (Setaria viridis (L.) Beauv.)
- Foxtail, yellow (Setaria glauca (L.) Beauv.)
- Horsenettle (Solanum carolinense L.)
- Ivy, Poison (Toxicodendron radicans (L.) Ktze.)
- Jimsonweed (Datura stramonium L.)
- Johnsongrass (Sorghum halepense (L.) Pers.)
- Lambsquarters, common (Chenopodium album L.)
- Milkweed, common (Asclepias syriaca L.)
- Nutsedge, yellow (Cyperus esculentus L.)
- Panicum, fall (Panicum dichotomiflorum Michx.)
- Pigweed, redroot (Amaranthus retroflexus L.)
- Pokeweed, common (Phytolacca americana L.)
- Ragweed, common (Ambrosia artemisiifolia L.)
- Rocket, yellow (Barbarea vulgaris R. Br.)
- Shepherd's purse (Capsella bursa-pastoris (L.) Medicus)
- Teasel, common (Dipsacus fullonum L.)
- Thistle, Canada (Cirsium arvense (L.) Scop.)
- Velvetleaf (Abutilon theophrasti Medicus)
- Witchgrass (Panicum capillare L.)
