SILENCER® 120 EC
Most trusted active ingredient used in Western Canada to control a wide range of insects in field, tree fruit and horticulture crops.

General Info
The Pest Management Regulatory Agency has reinstated livestock grain feeding use for SILENCER® 120 EC. The reinstatement applies to grain and meal from treated canola, cereals, field corn, soybeans, and pulses. For detailed information, please consult the new label.
HOW IT WORKS
Fast-acting stomach and contact insecticide.
PACKAGING
- Case: 4 × 3.785 L jugs
APPLICATION RATES AND ACRES TREATED
- Rate: 17 – 94 ml/ac; standard rate: 34 ml/ac
- Acres Treated: 40 – 220 ac/jug; standard rate: 110 ac/jug
- Standard rate is applicable for most pests, refer to label for more information.
WATER VOLUME
- Ground: 40 – 80 L/ac (10 – 20 US gal/ac)
- Aerial: 4 – 16 L/ac (1 – 4 US gal/ac)
RAINFASTNESS
- 1 hour
APPLICATION TIMING AND CROP STAGING:
Bertha Armyworm: Apply when the insects are at a vulnerable stage (early larval instars). Consult provincial guidelines for treatment threshold and advice.
Diamondback Moth Larvae: Apply when the insects are at a vulnerable stage (early larval instars). Consult provincial guidelines for treatment threshold and advice.
Flea Beetles: Begin scouting for feeding damage within a week of emergence. Apply to crop at first signs of feeding. SILENCER® 120 EC can also be used to spray a 15 m strip around the field edge to reduce insect migration.
Grasshoppers: Apply the low rate (26 ml/ac) up to the 3rd nymphal stage (1 cm long), or when insect numbers are low. Apply the high rate (34 ml/ac) when grasshoppers are larger, up to but not including winged adults (up to 2.5 cm in length) or when insect numbers are high.
Potato Insects (except Colorado Potato Beetle): Apply when insects or feeding damage appears.
Timing of applications should be based on the presence of vulnerable pest developmental stages and significant populations as determined by local monitoring. Consult the label for complete crop list and insect timing.
Key Crops and Application Rates
Wheat
Apply 17 mL/acre to 51 mL/acre, depending on the crop and pest. Use 40 to 80 L/acre water volume by ground, 4–16 L/ac by air. See label for specific rates, application timing and complete lists of crops Silencer can be used on and the insect problems that it controls. Always read and follow label directions.
Barley
Apply 17 mL/acre to 51 mL/acre, depending on the crop and pest. Use 40 to 80 L/acre water volume by ground, 4–16 L/ac by air. See label for specific rates, application timing and complete lists of crops Silencer can be used on and the insect problems that it controls. Always read and follow label directions.
Oats
Apply 17 mL/acre to 51 mL/acre, depending on the crop and pest. Use 40 to 80 L/acre water volume by ground, 4–16 L/ac by air. See label for specific rates, application timing and complete lists of crops Silencer can be used on and the insect problems that it controls. Always read and follow label directions.
Canola
Apply 17 mL/acre to 51 mL/acre, depending on the crop and pest. Use 40 to 80 L/acre water volume by ground, 4–16 L/ac by air. See label for specific rates, application timing and complete lists of crops Silencer can be used on and the insect problems that it controls. Always read and follow label directions.