Tundra FAQ

• What is Tundra?
• Tundra is an all-in-one grassy and broad-spectrum broadleaf herbicide

• What active ingredients are in Tundra ?
• Tundra contains three active ingredients:
  1. Pyrasulfotole (Group 27)
  2. Bromoxynil (Group 6)
  3. Fenoxaprop-p-ethyl (Group 1)
  

• Can I apply Tundra to my barley?
• Yes, Tundra is registered for use in spring wheat (including durum) and barley.

• What makes Tundra convenient?
• No tank-mixing of separate grass and broadleaf cocktails, no tank-mix order to look up, 160 ac/drum (no metering/measuring), or 500 ac/tote, quicker than triple rinsing jugs, just add water and go!

• Do I need to tank-mix an adjuvant or additional broadleaf herbicide with Tundra?
• No adjuvant, surfactant or additional herbicide is required with Tundra.

• Why did Bayer develop an all-in-one product?
• Farmers told us that during the hectic spraying season they don’t have time to fuss with the calculations, rates, hassles and potential errors associated with tank-mixing, they wanted a simple solution to control the majority of the weeds on their farm.

• What weeds will Tundra control?
• Tundra will control barnyard grass, green foxtail, wild oats, yellow foxtail, annual sow thistle, chickweed, cleavers, common ragweed, flixweed, hemp-nettle, kochia, lambs-quarters, pale smartweed, redroot pigweed, russian thistle, shepherd’s-purse, stinkweed, volunteer canola (including conventional, Round-up Ready, Liberty Link and Clearfield), wild buckwheat, wild mustard and suppression of Canada thistle, dandelion, perennial sow thistle, and round-leaved mallow.

• Will Tundra control my Group 2-resistant kochia, chickweed and cleavers?
• Yes, Tundra contains a new mode of action (pyrasulfotole), which is the only Group 27 in cereals and will control your Group 2-resistant weeds such as kochia, cleavers, chickweed and spiny annual sow thistle.

• Can I add Ammonium Sulphate (AMS) to enhance control of cleavers?
• Yes, Bayer CropScience recommends adding AMS Utility Modifier with Tundra for control of cleavers that are in the 3-6 whorl stage. If adding AMS, always add AMS to the tank first.

• How much Bayer CropScience AMS Utility Modifier should I add to Tundra?
• Bayer’s AMS Utility Modifier has a concentration of 400 g/L (40% solution) and a label rate of 500 g/ha, therefore AMS should be added at a rate of 0.5 L per acre (20 acres per jug). Add one 10 L jug of AMS for 2 X 8.1L jugs of Tundra.

• At what crop stage can Tundra be applied to the registered crops?
• Tundra can be applied to wheat and barley crops from the 1-6 leaf stage up to the emergence of the 3^rd tiller on the crop.

• What is the rainfast rating for Tundra?
• One hour.

• How much water should I use when applying Tundra by ground & air?
• Ground application - minimum of 5 US gal/ac (19L/ac).
  Air - minimum of 3 US gal/ac (11L/ac).
  
  Bayer CropScience recommends using more water to achieve better coverage when applying the product in dense crop canopies, on high weed populations or on advanced growth stage weeds.

• How many acres does one jug treat?
• One 8.1L jug treats 10 acres (2 X 8.1L case will treat 20 acres).
  One 129.6L BigBoys shuttle treats 160 acres and one 405L BigBoys tote treats 500 acres.

• What crops can be grown the year after an application of Tundra?
• Alfalfa, barley, canary seed, canola, field corn*, flax, oats, field peas**, potatoes, soybeans*, sunflowers and wheat (spring and durum) can be planted 10 months following an application of Tundra. Lentils can be planted back 22 months following an application of Tundra.
  *MB only
  **Field peas may be grown the year following Tundra herbicide application in all Black, Grey-Wooded and Dark Brown soil zones. Do not plant field peas the year following an Tundra application in the Brown soil zone where organic matter content is below 2.5% and where soil pH is above 7.5%.

• Can I add MCPA or 2,4-D to Tundra?
• Yes, up to a maximum of 4 active ounces per acre of MCPA for enhanced suppression of Canada Thistle and a maximum of 4 active ounces per acre of 2,4-D for suppression of storks-bill.

• Can I tank-mix a fungicide with Tundra?
• Stratego^® can be tank-mixed with Tundra on spring wheat and Tilt^® can be tank-mixed with Tundra on spring wheat and barley. If adding AMS to Tundra for enhanced weed control, do not tank-mix with a fungicide. For a list of unlabelled tank mixes supported by Bayer CropScience, please visit BayerCropScience.ca/TankMixList