Canada

Pale smartweed (pale persicaria)

Polygonum lapathifolium

Annual, many-formed, seed-propagated weed with spindle-shaped root.

Hollow stem swollen above the nodes, sunken glands on the lower surface of the leaves, nodding spikes, and flattened seeds.

Cotyledons: Slender, length three times the width, with usually reddish hypocotyls.

Stems: Erect or ascending, usually ramified, hairless, red spotted, up to 100 cm (39.37 inch) high.

Leaves: Elliptical-lanceolate, widest in the lowest third, markedly petiolate, upper surface often reddish-splotched, underside heavily glandularly dotted.
Membranous tube on the leaves' bases, loosely adjacent to the stalk.
At the margin only short ciliate (magnifying glass!).
First true leaf long, narrow and hairy, with a silvery appearance.

Pesticides
Benchmark B
intensity: ★★★
Broadband
intensity: ★★★
Buctril M
intensity: ★★★
Compas 480 EC
intensity: ★★★
Dupont Predicade Grass
intensity: ★★★
Infinity
intensity: ★★★
Luxxur B
intensity: ★★★
Mextrol 450
intensity: ★★★
Pardner
intensity: ★★★
Predicade Grass
intensity: ★★★
PSABRY
intensity: ★★★
RRR
intensity: ★★★
RRRPSABRY
intensity: ★★★
Target DS
intensity: ★★★
Thumper
intensity: ★★★
Tundra
intensity: ★★★
Varro
intensity: ★★★
Velocity 2
intensity: ★★★
Velocity m3 All-In-One
intensity: ★★★
Enforcer M
intensity: ★★
Approve
intensity: N/A
Badge II
intensity: N/A
Baseline A
intensity: N/A
Benchmark A
intensity: N/A
Bromotril 11 240 EC
intensity: N/A
BRY/MAE 2 (A Component of RRR/BRY/MAE Herbicide Tank Mix)
intensity: N/A
Carnival 540
intensity: N/A
Clearout 41 Plus
intensity: N/A
Credit 360
intensity: N/A
Credit 45
intensity: N/A
Credit Plus
intensity: N/A
Credit Xtreme
intensity: N/A
Durango
intensity: N/A
GF-2018
intensity: N/A
GF-772
intensity: N/A
Koril 235
intensity: N/A
MON 76429 Liquid
intensity: N/A
MON 76431 Liquid
intensity: N/A
MON 76669 Liquid
intensity: N/A
MON 79791 Liquid
intensity: N/A
MON 79828 Liquid
intensity: N/A
Nufarm Fluroxypyr
intensity: N/A
Nufarm Glyphosate 360
intensity: N/A
NuGlo
intensity: N/A
Polaris
intensity: N/A
Powermax Liquid
intensity: N/A
PP-2525
intensity: N/A
Predicade Broadleaf
intensity: N/A
Prowl H2O
intensity: N/A
Renegade HC Liquid
intensity: N/A
Roundup Ultra Liquid
intensity: N/A
RRR 1 (A Component of RRR/BRY/MAE Herbicide Tank Mix)
intensity: N/A
Thrasher
intensity: N/A
Thrasher II
intensity: N/A
Thumper Total 1 (A Component of Thumper Total Herbicide Tank Mix)
intensity: N/A
Thumper Total 2 (A Component of Thumper Total Herbicide Tank Mix)
intensity: N/A
Touchdown IQ
intensity: N/A
Velocity A (A Component of Velocity M3 Herbicide Tank Mix)
intensity: N/A
Velocity B (A Component of Velocity M3 Herbicide Tank Mix)
intensity: N/A