Invasive plants

Question 1

Answer 1

Bush Honeysuckle (Lonicera maackii, L. morrowii, L. tatarica)

Problem: Forms dense thickets, outcompetes native plants, reduces diversity
Management: Cut and stump-treat with glyphosate or triclopyr, repeated treatments necessary

Question 2

Answer 2

Autumn Olive (Elaeagnus umbellata)

Problem: Spreads rapidly, displaces native plants, alters soil chemistry
Management: Cut and stump-treat with glyphosate or triclopyr, or foliar spray with metsulfuron-methyl

Question 3

Answer 3

Multiflora Rose (Rosa multiflora)

Problem: Forms dense thickets, outcompetes native plants, provides cover for less desirable wildlife
Management: Cut and stump-treat with glyphosate or triclopyr, or foliar spray with metsulfuron-methyl

Question 4

Answer 4

Japanese Stiltgrass (Microstegium vimineum)

Problem: Spreads rapidly, displaces native understory plants, alters habitat structure
Management: Foliar spray with glyphosate or sethoxydim, mow or weed-eat before seed production

Question 5

Answer 5

Sericea Lespedeza (Lespedeza cuneata)

Problem: Outcompetes native grasses and forbs, reduces plant diversity, unpalatable to some wildlife
Management: Foliar spray with triclopyr or metsulfuron-methyl, mow or burn in late summer before seed production

Question 6

Answer 6

Tall Fescue (Schedonorus arundinaceus)

Problem: Forms dense stands, outcompetes native grasses, low palatability for wildlife
Management: Herbicide treatment with glyphosate or imazapyr, followed by native grass seeding

Question 7

Answer 7

Japanese Honeysuckle (Lonicera japonica)

Problem: Climbs and smothers native vegetation, reduces tree growth and regeneration
Management: Cut and stump-treat with glyphosate or triclopyr, foliar spray with glyphosate

Question 8

Answer 8

Garlic Mustard (Alliaria petiolata)

Problem: Outcompetes native understory plants, alters soil chemistry, affects insect communities
Management: Hand-pull or foliar spray with glyphosate or 2,4-D before seed production

Question 9

Answer 9

Chinese Privet (Ligustrum sinense)

Problem: Forms dense thickets, outcompetes native plants, alters habitat structure
Management: Cut and stump-treat with glyphosate or triclopyr, or foliar spray with glyphosate or imazapyr

Question 10

Answer 10

Kudzu (Pueraria montana)

Problem: Smothers native vegetation, alters habitat structure, difficult to control
Management: Foliar spray with clopyralid or aminopyralid, cut and stump-treat with triclopyr or glyphosate

Question 11

Answer 11

Tree-of-Heaven (Ailanthus altissima)

Problem: Rapid growth, outcompetes native trees, allelopathic effects on other plants
Management: Cut and stump-treat with triclopyr or imazapyr, girdle larger trees and apply herbicide

Question 12

Answer 12

Japanese Knotweed (Fallopia japonica)

Problem: Forms dense thickets, displaces native plants, alters riparian habitats
Management: Foliar spray with glyphosate or imazapyr, cut and treat regrowth

Question 13

Answer 13

Purple Loosestrife (Lythrum salicaria)

Problem: Invades wetlands, displaces native plants, reduces habitat quality for waterfowl
Management: Hand-pull or foliar spray with glyphosate or triclopyr, biological control with beetles

Question 14

Answer 14

Johnsongrass (Sorghum halepense)

Problem: Outcompetes native grasses, forms dense stands, reduces plant diversity, allelopathic effects
Management: Foliar spray with glyphosate or clethodim, mow or disk before seed production