2026 Weed Control Program

Notice of Weed Control Treatments

Broadleaf Weeds

The Lethbridge Northern Irrigation District will be controlling broadleaf weeds along its right-of-ways for the 2026 irrigation season. The chemicals used will be Oracle Dicamba, MCPA Amine 600, Navius Flex, and 2,4-D Amine 600. StartUp Herbicide will also be used for weed control on graveled driving banks and for reed canary grass control. This Spray program will be starting in April of 2026 and will continue to the end of the irrigation season.

Aquatic Weeds

Also included in this weed control program will be the treatments for aquatic weeds. To control these aquatic weeds, the Lethbridge Northern Irrigation District may be treating the Canals noted below on the approximate dates shown during the 2026 irrigation season. The Canals will be treated with Magnicide H (Acrolein, Inhibited) to control the growth of aquatic weeds and algae.

Projected 2026 Aquatic Treatment Locations & Dates

Locations

Lateral 61C Canal: TP 8/9, RGE 22

Lateral 61E Canal: TP 10, RGE 22

Lateral 62G Canal: TP 11/12, RGE 21

Lateral K1 Canal: TP 11/12, RGE 19/20

Lateral 62K Canal: TP 11, RGE 19/20

Weeks Of

May 11, 18, 25

June 1, 8, 15, 22, 29

July 6, 13, 20, 27

August 3, 10, 17, 24, 31

September 7, 14, 21, 28

All sub laterals that take water from the above noted laterals may/will be affected by these treatments. Please read the supplied material if you have land by these treatments or receive water from these canals.

This weed control program is administered by licensed applicators under the approval from Alberta Environment & Protected Areas.