Canada

Pennsylvania smartweed

Polygonum pensylvanicum

Polygonum pensylvanicum (syn. Persicaria pensylvanica) is a species of flowering plant in the buckwheat family, Polygonaceae.
Pennsylvania smartweed is a variable annual herb reaching 10 cm (3.9 in) to 2 m (6.6 ft) tall. The upright, ribbed stems are branching or unbranched. The lance-shaped leaves reach up to about 2 cm (0.79 in) in length. The blade may be marked with a dark blotch. The brownish ochrea at the base is up to 2 cm (0.79 in). The inflorescences grow at the top of the stem and from the leaf axils. The flowers have five pinkish or greenish tepals each a few millimeters long.
This plant grows in moist, disturbed habitat types, such as ponds, reservoirs, riverbanks, irrigated fields, and ditches.

Pesticides
Aim EC
intensity: ★★★
Broadband
intensity: ★★★
Callisto GT
intensity: ★★★
Cheminova Glyphosate
intensity: ★★★
Cheminova Glyphosate II
intensity: ★★★
Clearout 41 Plus
intensity: ★★★
Credit 360
intensity: ★★★
Credit Plus
intensity: ★★★
Cycle
intensity: ★★★
Depose
intensity: ★★★
Durango
intensity: ★★★
Etho SC
intensity: ★★★
Flexstar GT
intensity: ★★★
GF-2018
intensity: ★★★
GF-772
intensity: ★★★
Glyfos Bio
intensity: ★★★
Glyfos Bio 450
intensity: ★★★
Glyfos Soluble Concentrate
intensity: ★★★
Glyfos Soluble Concentrate II
intensity: ★★★
Glyphos AU Soluble Concentrate
intensity: ★★★
Glyphosate 480
intensity: ★★★
Halex GT
intensity: ★★★
Maverick II
intensity: ★★★
MON 76429 Liquid
intensity: ★★★
MON 76431 Liquid
intensity: ★★★
MON 76669 Liquid
intensity: ★★★
MON 79791 Liquid
intensity: ★★★
MON 79828 Liquid
intensity: ★★★
Nortron
intensity: ★★★
Nortron EC
intensity: ★★★
Powermax Liquid
intensity: ★★★
R/T 540 Liquid
intensity: ★★★
Renegade HC Liquid
intensity: ★★★
Restore II
intensity: ★★★
Roundup Transorb HC Liquid
intensity: ★★★
Roundup Transorb Liquid
intensity: ★★★
Roundup Transorb Max Liquid
intensity: ★★★
Roundup Ultra 2 Liquid
intensity: ★★★
Roundup Ultra Liquid
intensity: ★★★
Roundup WeatherMAX With Transorb 2 Technology Liquid
intensity: ★★★
Roundup Xtend with VaporGrip Technology
intensity: ★★★
StartUp
intensity: ★★★
Sync
intensity: ★★★
Target DS
intensity: ★★★
Touchdown IQ
intensity: ★★★
Touchdown Total
intensity: ★★★
Traxion
intensity: ★★★
VisionMAX
intensity: ★★★
XtendiMax with VaporGrip Technology
intensity: ★★★
2,4-D Amine 600
intensity: ★★
GF-2654 TC
intensity: ★★
GF-2654 TSOY
intensity: ★★
GF-2726 TSOY
intensity: ★★
Carnival 540
intensity: N/A
Credit 45
intensity: N/A
Credit Xtreme
intensity: N/A
Crush'R 480
intensity: N/A
Crush'R 540
intensity: N/A
Crush'R Plus
intensity: N/A
Engenia
intensity: N/A
Fexapan Plus Vaporgrip Technology
intensity: N/A
Fierce
intensity: N/A
Glyphogan Plus
intensity: N/A
M1691
intensity: N/A
Maverick III
intensity: N/A
Nufarm Fluroxypyr
intensity: N/A
NuGlo
intensity: N/A
PrePass 480
intensity: N/A
Prowl H2O
intensity: N/A
Torpedo
intensity: N/A
Vantage
intensity: N/A
Vantage MAX
intensity: N/A
Vantage Plus
intensity: N/A
Vantage Plus MAX
intensity: N/A
VP480
intensity: N/A