Herbicide Recommendations for Herbaceous Ornamentals: Soil Applied Grass and Broadleaf Herbicides

Pub 75: Guide to Weed Control > Nursery and Ornamental Crops > Herbicide Recommendations for Herbaceous Ornamentals: Soil Applied Grass and Broadleaf Herbicides

Excerpt from 2010-2011 Chapter 16, Publication 75, Guide to Weed Control, Order this publication

Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

Apply at lining out, late fall or early spring in 340 L of water
Applications should be made to soil recently cultivated to a uniform texture.
Rain or irrigation (1 cm) is needed to activate this herbicide
Do NOT use on Germander, Telanthera, Ajuga, Mesembryanthemum, Dianthus, Viola Phlox and Vinca minor.

**Treflan EC or Rival EC or Bonanza 400**
Trade Name	Treflan EC	or Rival EC	or Bonanza 400
Active Ingredient	trifluralin	or trifluralin	or trifluralin
Formulation	480 g/L	500 g/L	400 g/L
Rate per hectare (active)	0.6 - 1.155 kg/ha	0.6 - 1.155 kg/ha	0.6 - 1.155 kg/ha
Rate per hectare (product)	1.25 - 2.4 L/ha	1.2 - 2.2 L/ha	1.5 - 2.75 L/ha
Rate per acre (product)	0.5 - 0.96 L/ac	0.48 - 0.94 L/ac	0.6 - 1.1 L/ac

Precautions (For more information, see Chapter 4. Herbicides Used in Ontario, page 23 and Chapter 5. Notes on Adjuvants, page 69).

Crops