Notice of Weed Control
The St. Mary River Irrigation District will be controlling broadleaf weeds along its right of ways for the 2011
irrigation season. The District will use 2,4-D and glyphosate for weed control on driving banks and reed canary grass control along canals. This spray program will be starting in May of 2011 and will continue to the end of the irrigation season.
Also included in this weed control program will be the treatments for aquatic weeds. To control these aquatic weeds, the St. Mary River Irrigation District may be treating the canals, as required, as noted below on a regular two week interval for the 2011 irrigation season. The canals will be treated with Magnacide H (Acrolein, stabilized) to control the growth of aquatic weeds and algae.
Year 2011 Aquatic treatment locations and dates.
Grassy Lake / Burdett / Bow Island area.
NORTH GRASSY MAIN TP 10/11 RGE 13
NORTH BURDETT MAIN TP 10/11 RGE 12/13
SOUTH BOW ISLAND LAT 2B TP 9 RGE 11
BOW ISLAND LAT 22 TP 11 RGE 10
SOUTH GRASSY MAIN TP 9/10 RGE 14
YELLOW LAKE LAT 13 TP 8/9 RGE 12
BOW ISLAND LAT 26 TP 11 RGE 10
BOW ISLAND LAT 10 TP 10 RGE 11
May 3, 17, 31, June 14, 28, July 12, 26, Aug 9, 23, Sept 6, 20
Seven Persons / North Seven Persons area.
MAIN CANAL BELOW MURRAY TP 10/11 RGE 6/7
WEST MED. HAT LATERAL #2 TP12 RGE 6/7
MED. HAT LATERALS #10 & #13 TP 11/12 RGE 6/7
BOW ISLAND LATERAL 34 TP 12 RGE 8
May 4, 18, June 1, 15, 29, July 13, 27, Aug 10, 24, Sept 7, 21
Seven Persons / South Medicine Hat / Grassy Lake / Burdett Area
MAIN CANAL BELOW MURRAY TP 10/11 RGE 6/7
SOUTH MED. HAT LATERAL #3 TP 11/12 RGE 5/6
N. GRASSY / N. BURDETT LAT. TP 10/11 RGE 12/13
May 11, 25, June 8, 22, July 6, 20, Aug. 3, 17, 31, Sept. 14, 28
Main canal Treatments.
MAIN CANAL SAUDER RES. TO MURRAY RES. TP 10/11/12 RGE 7/8
June 2, 16, 30, July 14, 28, Aug 11, 25, Sept. 8, 22
MAIN CANAL STAFFORD RES. TO SAUDER RES. TP 8/9/10/11/12 RGE 10/11/12/13/14/15/16/17/18/19
June 24 & 25 All laterals will be affected.
Lethbridge and Area
CHIN LATERAL # 10 TP 7/8 RGE 18/17
CHIN LATERAL # 2 TP 8 RGE 20
COALDALE LATERAL TP 9 RGE 19/20
VERDIGRIS TP 4 RGE 16/17
CHIN LATERAL 4 TP 8 RGE 20
CHIN LATERAL 5 TP 8 RGE 19/20
May 10, 24, June 7, 21, July 5, 19, Aug 2, 16, 30, Sept. 13, 27
Lethbridge and Area
EAST LATERAL TP 9 RGE 19/20
CAMERON EXTENSION TP 10 RGE 19/20
CAMERON LATERAL TP 9 RGE 19/20
NORTHEAST LATERAL TP 9/10 RGE 20/21
NORTH LATERAL TP 8/9/10 RGE 20/21
May 12, 26, June 9, 23, July 7, 21, Aug 4, 18, Sept 1, 15, 29
All sub-laterals that take water from the above noted laterals may/will be affected by these treatments. Information material will be supplied, upon request if you have land affected by these treatments.This weed control program is administered by licensed applicators that are under approval from Alberta Environmental Protection.
Manager of Operations
