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Spotted Wing Drosophila
Drosophila suzukii
Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable small fruit and tree fruit crops. Known in Oregon and the Pacific Northwest since about 2009, this species now appears to be established in many fruit growing regions around the country. Growers and researchers are working together to implement effective pest control strategies.
Spiny Waterflea
Bythotrephes cederstroemi
Spiny waterfleas are tiny crustaceans less than 1/2" long with long, sharp, barbed tails. Spiny waterfleas collect in gelatinous globs on fishing equipment and lines.
Hemlock Woolly Adelgid
Adelges tsugae
HWA is a tiny, aphid-like insect that was first reported in the eastern United States in the 1950's. Its name derives from a white "wool-like" covering, called an ovisac, on mature egg-laying adults.
Asian Longhorned Beetle
Anoplophora glabripennis
ALB has a glossy black body with white spots on top of the wings. Adults are 3/4" to 1" long. Antennae are roughly 2 times the body length with distinctive black and white bands. The legs and antennae have a bluish tinge. Adults are present from July to October.
Balsam Woolly Adelgid
Adelges piceae
Adults are tiny (about 1 mm long) and appear dark purple to black in color. They produce a thick layer of light-colored, waxy, wool-like material that covers their body.
Sirex (European) Woodwasp
Sirex noctilio
Woodwasps (or horntails) are large, full-bodied insects about 1'' to 1 1/2" long. Adult females have dark metallic blue or black bodies with orange legs. The male's head and thorax are metallic blue, and the abdomen is orange at the center and black at the base. Adults emerge from July to September.
Emerald Ash Borer
Agrilus planipennis
Emerald ash borer has a golden-green body with dark, metallic green wings and a purplish-red abdomen. Adult beetles average 3/8" to 3/4" long and 1/6" wide. EAB emerges in late spring, flying throughout June to August.
Oriental Bittersweet
Celastrus orbiculatus
Oriental, or asiatic, bittersweet is a perennial, deciduous vine that can grow up to 60 ft. Its stems have dark brown, striated bark. The alternate leaves are elliptic to ovate, and spiral evenly around the stem. Axillary flowers bloom in May to early June yielding bright, reddish-orange fruit in the fall. Oriental bittersweet can be confused with american bittersweet, a native species, which has terminal inflorescence and orange capsules
Kudzu
Pueraria lobata
Kudzu is a climbing, woody, perennial vine that has the potential to reach up to 100 ft. in height. Alternately arranged leaves are compound with three leaflets. The vine is yellow-green to grey in color, and may reach a thickness of 10" or more in diameter. Kudzu has purple, highly fragrant flowers that are borne in long, hanging clusters. Its brown, hairy, flattened seed pods are produced from September to January.
Japanese Stiltgrass
Microstegium vimineum
Japanese stiltgrass is an annual grass that sprawls along the ground as it grows. It's adapted to low light conditions but can be found in a wide range of habitats.