Canada

Smartweed (water pepper)

Polygonum hydropiper

Annual. The branched stem, 2 to 3 feet in length, creeps at first, then becomes semi-erect. The leaves are lanceshaped, shortly stalked, wavy, more or less acute, glandular below, fringed with hairs. The stipules form a short inflated ochrea. The greenish-pink flowers are in long, slender, loose racemes, that mostly droop at their tips. There are six to eight stamens, two of which are functionless; two to three styles to the pistil. The fruit is black and dotted, as long as the perianth, three-sided and nut-like. The leaves have a pungent, acrid, bitter taste (something like peppermint), which resides in the glandulat dots on its surface, no odour.

Pesticides
Aatrex Liquid 480
intensity: ★★★
Barricade SG
intensity: ★★★
Basagran Liquid
intensity: ★★★
Baseline A
intensity: ★★★
BASF Pyramin DF
intensity: ★★★
Benchmark A
intensity: ★★★
Broadband
intensity: ★★★
Curtail M
intensity: ★★★
Deploy WDG
intensity: ★★★
Dyvel DSP
intensity: ★★★
Eclipse II A
intensity: ★★★
Eclipse II B
intensity: ★★★
Eclipse III A
intensity: ★★★
Eclipse III B
intensity: ★★★
Element
intensity: ★★★
Flaxmax
intensity: ★★★
Florasulam II
intensity: ★★★
Florasulam l
intensity: ★★★
Frontier Max Plus
intensity: ★★★
Frontline 2,4-D XC A
intensity: ★★★
Frontline 2,4-D XC B
intensity: ★★★
Frontline A
intensity: ★★★
Frontline B
intensity: ★★★
Frontline I
intensity: ★★★
Frontline XL
intensity: ★★★
Garlon 4
intensity: ★★★
Garlon Ultra
intensity: ★★★
Garlon XRT
intensity: ★★★
Glyfos Bio 450
intensity: ★★★
GlyKamba
intensity: ★★★
Harmony Broadleaf
intensity: ★★★
Imazethapyr 240 SL
intensity: ★★★
Laddok
intensity: ★★★
Liberty 150 SN
intensity: ★★★
Liberty 150 SN Herbicide and Crop Desiccant MP
intensity: ★★★
Maverick II
intensity: ★★★
Mocan 943 Water Soluble
intensity: ★★★
Nu-Image
intensity: ★★★
Paradigm
intensity: ★★★
PP-23235
intensity: ★★★
Prep II
intensity: ★★★
PrePass A
intensity: ★★★
PrePass B
intensity: ★★★
PrePass FLEX
intensity: ★★★
PrePass XC A
intensity: ★★★
PrePass XC B
intensity: ★★★
Princep Nine-T
intensity: ★★★
Pursuit
intensity: ★★★
Pursuit 70 DG
intensity: ★★★
Pyramin FL
intensity: ★★★
Pyroxsulam
intensity: ★★★
ReadySet SC
intensity: ★★★
Remedy EC
intensity: ★★★
Remedy MSO
intensity: ★★★
Remedy XRT
intensity: ★★★
Rustler Liquid
intensity: ★★★
Simadex Simazine Flowable
intensity: ★★★
Spitfire 50 SC
intensity: ★★★
Stellar XL
intensity: ★★★
Tandem A
intensity: ★★★
Tandem GoDRI A
intensity: ★★★
Target DS
intensity: ★★★
Travallas
intensity: ★★★
Triton C
intensity: ★★★
2,4-D Amine 500
intensity: ★★
2,4-D BEE-4
intensity: ★★
2,4-D LV-600
intensity: ★★
2,4-D LV-700
intensity: ★★
Attain XC B
intensity: ★★
Enlist Duo
intensity: ★★
MCPA 2 EH Ester 600
intensity: ★★
MCPA Amine
intensity: ★★
MCPA Amine 600
intensity: ★★
MCPA Ester 500 LV
intensity: ★★
MCPA Ester 600
intensity: ★★
MCPA-K
intensity: ★★
MCPA Sodium 300
intensity: ★★
Primextra II Magnum
intensity: ★★
Rexade B
intensity: ★★
2,4-D Ester 700
intensity: ★
2,4- D Ester 700
intensity: ★
Boost M
intensity: ★
Formula 40 C
intensity: ★
Guardsman Gladiator
intensity: ★
MultiStar
intensity: ★
Plus M Ester 600
intensity: ★
Albaugh MCPA Ester 600 Liquid
intensity: N/A
Attain A
intensity: N/A
Attain B
intensity: N/A
Attain XC A
intensity: N/A
Banvel
intensity: N/A
Carnival 540
intensity: N/A
Clopyralid
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
Estaprop XT
intensity: N/A
Express SG EUP
intensity: N/A
Flaxmax Herbicide Component of Tank Mix
intensity: N/A
Fluroxypyr 180
intensity: N/A
Fluroxypyr EC
intensity: N/A
Fluroxypyr WDG
intensity: N/A
FX
intensity: N/A
GF-184
intensity: N/A
GF-2018
intensity: N/A
GF-772
intensity: N/A
Impede
intensity: N/A
Korrex A
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
Outshine
intensity: N/A
Perimeter
intensity: N/A
Perimeter II
intensity: N/A
Polaris
intensity: N/A
Prestige A
intensity: N/A
Prestige B
intensity: N/A
Prestige XC A
intensity: N/A
Prestige XC B
intensity: N/A
Priority
intensity: N/A
Pursuit 240
intensity: N/A
Renegade HC Liquid
intensity: N/A
Rival Emulsifiable Concentrate Liquid
intensity: N/A
Roundup Ultra Liquid
intensity: N/A
Sencor 480 F
intensity: N/A
Sencor 75 DF
intensity: N/A
Sencor Solupak
intensity: N/A
Signal F
intensity: N/A
Syna16003
intensity: N/A
Traxos Two Broadleaf Component
intensity: N/A
XRM-5171
intensity: N/A