Prism^™SG

Herbicide

Group

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Outstanding post-emergent control of quackgrass, redroot pigweed and annual grasses.

Learn more about Corteva Agriscience Horticulture Products

Prism^™SG Herbicide Label

Prism^™SG Herbicide SDS Prism^™SG Tech Sheet - Western Canada Prism^™SG Tech Sheet - Eastern Canada

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Benefits

Can be used on all types of potatoes, including seed & early maturing.

Flexible re-cropping options.

Crops

Below lists the crops that Prism SG herbicide can be used on.

Registered
Unregistered

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Technical Specifications

Approved Use
Refer to the Prism SG label for complete use instructions.
Refer to the Controlled Weeds list for the full list of weeds.

Weeds Controlled:
- Barnyard Grass
- Fall Panicum
- Foxtail, Green
- Foxtail, Yellow
- Lamb's-Quarters*
- Pigweed, Redroot
- Quackgrass
- Witchgrass
*Suppression only
Rates
- 24 g/ac
Acres Treated: 20 ac/bottle

Water Volume: 40 L/ac (10 US gal/ac)
Application Timing
- Apply as a broadcast spray, with a recommended surfactant, to potatoes prior to initiation of flowering
- Recommended non-ionic surfactant: Citowett Plus, Agral 90 or Ag-Surf at 2 L per 1000 L spray solution (0.2% v/v)
- Application to control annual grasses and quackgrass must be made before the crop canopy can interfere with spray coverage of the target weeds. Cultivation is NOT recommended within 7-10 days prior to or after application.
Weeds which emerge after application of Prism™ SG herbicide will not be controlled. Application should be made when the majority of weeds have emerged. Annual grass and broadleaf weeds are most sensitive when small and actively growing. Early crop establishment and a good crop stand are important in providing competition for weeds and effective post-emergence control of quackgrass and annual weeds when using Prism™ SG.

Rainfast: 4 hours
Herbicide Group

Group 2
Tank Mixes

Prism SG can be tank mixed with Tricor 75DF herbicide post-emergent, plus a non-ionic surfactant i.e. Agral 90 or AgSurf at 2 L per 1000 L of spray solution (0.2% v/v).
Crop Rotation

Anytime: field corn

4 months: winter wheat

10 months: spring barley, spring wheat (including durum), oats, canola, soybeans, dry beans, white beans, red clover, sorghum, chickpeas, potatoes, sunflowers, corn (sweet or seed), field peas, lentils, flax and faba beans.
Additional Information

Pre-Harvest Interval: The PHI for potatoes is 30 days.

Weeds steal light, water and nutrients from healthy plants, decreasing the yield and quality of your potato crop.

Strategies for Protecting Potato Crops from Key Weeds

Controlling pests and weeds in potato crops

Corteva Agriscience™ is proud to offer an outstanding lineup of grower-focused products to manage pests and weeds in potato crops.

Controlling pests and weeds in potato crops

Corteva Agriscience™ is proud to offer an outstanding lineup of grower-focused products to manage pests and weeds in potato crops.

Post-Emergent Weed Control in Potatoes

Dry growing conditions leading up to crop emergence can affect performance of some pre-emergent herbicides. Prism SG is an excellent post-emergent herbicide option you can use in all varieties of potatoes.