Category Archives: Invasive Species

Garlic mustard (Alliaria petiolata) is an invasive biennial weed. This article displays images to assist with identification and provides recommendations for control, including a management calendar and treatment and timing table. Background Garlic mustard (Alliaria petiolata) is an herbaceous member of the mustard family (Brassicaceae) brought over by early European colonizers. First documented in NewContinue reading “Garlic Mustard”

Background Oriental bittersweet (Celastrus orbiculatus) was introduced to the United States in the 1860s from east Asia. This woody, deciduous, perennial vine has since naturalized and become an extremely aggressive and damaging invader of natural areas. Oriental bittersweet chokes out desirable native plants by smothering them with its dense foliage and strangling stems and trunks.Continue reading “Oriental Bittersweet”

Autumn olive trees were planted for soil erosion. But its prolific fruit and seeds have disrupted native ecosystems. Scientific Name: Elaeagnus umbellata Introduction: Brought to U.S. from Asia in 1800s, planted widely in 1950s for erosion control. Identification: Grayish green leaves with silvery scales bottom side, gives off shimmery look. Stems are speckled, often withContinue reading “Autumn Olive”