Introduction

298
Effects of Growing Conditions
Crop height reductions or yellowing may occur if high temperatures occur within 48 hours of application. Cold, cloudy
weather or frost within 3 days of application will also aggravate injury. If frost occurs, allow 4 to 5 days for crop to recover
prior to applying metribuzin. Heavy rainfall soon after application to peas, lentils and chickpeas can result in stand
reduction on soils with less than 4 percent organic matter.
Tank Mixes:
Herbicides:
• In spring wheat or barley: Dicamba, Target, MCPA amine or 2,4-D amine.
• In potatoes (post emergent) Sencor 75 DF and TriCor only: Prism*
• In potatoes (preplant incorporated): Eptam Liquid EC (Required).
• In faba beans (preplant incorporated): Treflan EC (Required).
• In soybeans (preplant incorporated): Treflan EC (Required).
• In peas:
º Treflan (PPI)
º Rival (PPI).
º Sencor 75 DF or TriCor at 77 g per acre plus 0.19 L per acre MCPA sodium salt (300 g/L).
* Consult manufacturer or seed supplier for varietal tolerances to metribuzin and Prism tank-mix applications in
potato.
Insecticides: None registered.
Fungicides: None registered.
Note: The above mixes are those listed on the Sencor or TriCor label only.
Allow 5 days between application of metribuzin and application of other pesticides.
Adding ingredients in the correct order is critical for optimum performance. Check labels of both products to be mixed for
directions. General guidelines can be found on page 8.
Restrictions:
• Rainfall: Within 6 hours may reduce control.
• Re-entry Interval: DO NOT re-enter treated areas for 12 hours after application.
• Grazing Restrictions: DO NOT graze treated cereal crops within 30 days of application, or peas, chickpeas or lentils
within 70 days of application.
• Pre-harvest Interval: DO NOT harvest barley, wheat or potatoes within 60 days of application. DO NOT harvest lentils,
chickpeas, or field peas within 70 days of application. DO NOT harvest processing peas or chickpeas within 40 days of
application.
• Re-cropping Interval: Preplant incorporated treatments may leave a residue in the soil that will affect succeeding
crops when using higher rates of product. DO NOT seed canola, sunflowers, onions, celery, peppers, cole crops,
lettuce, spinach, red beets, turnips, pumpkin, squash, cucumbers or melons the year after treatment. Fall seeded crops
may be injured when seeded the same year as preplant or post-emergence applications of these products.
• Aerial Application: No restrictions on label. While aerial application is not specifically prohibited, it is not recommend
by the manufacturer
• Storage: May be frozen.
• Buffer Zones:
Application method
Buffer Zones (metres † ) Required for the Protection of:
Aquatic Habitats of Depths
Terrestrial habitat
Less than 1 m 1 to 3m Greater than 3 m
Ground only* 5 2 1 10
See page 35 for an explanation of the different habitats.
* Buffer zones can be reduced by 70% when using shrouds and by 30% when using cones mounted less than
12 inches from the crop canopy.
†
Distance measured is metres from the downwind edge of the spray boom to sensitive habitat.