Absinth wormwood (Artemisia absinthium L.) is a perennial broadleaf plant introduced as an ornamental into North America from Europe in 1841. The plant escaped cultivation and is now widely distributed in the U.S. and Canada. This article describes the biology, ecology, identification, and management of absinth wormwood in natural areas.Read More
Spotted knapweed (Centaurea stoebe) is a tap-rooted perennial forb that spreads by seed. Seedlings and mature plants over-winter in a rosette stage and resume growth in early April. Spotted knapweed blooms from mid to late July through mid September.Read More
Silverleaf nightshade (Solanum elaeagnifolium) and Carolina horsenettle (Solanum carolinense), also known as horse nettle or bull nettle, are deep-rooted, herbaceous, perennial plants in the nightshade family. Article discusses distribution and management of the two invasive nightshadesRead More
FREMONT COUNTY WEED AND PEST CONTROL DISTRICT AND THE U.S. BUREAU OF LAND MANAGEMENT (BLM) TEAMED UP WITH THE WYOMING GAME AND FISH DEPARTMENT
and others to keep invasive plants out of greater sage-grouse (Centrocercus urophasianus) habitat.
Field research trials were initiated in ponds and flowing water systems to gather data to support the addition of aquatic uses to aminopyralid product labels. Research was designed to establish food tolerances for fish, shellfish and crustaceans, and define herbicide dissipation in water and sediment over time.Read More