Corn Herbicides

Corn Herbicide Solutions

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Corteva Agriscience offers unique corn herbicides that fit your weed control needs and provide solutions for your corn acre.

Designed for use in glyphosate tolerant silage, grazing and grain corn, each of the products provide agronomic benefits to clean your fields and increase your yields.

Resources

Sortan IS Tech Sheet
Lontrel XC Tech Sheet

Sortan™ IS

The only corn herbicide in Western Canada with residual activity to ensure your corn rows remain weed free during the early stages of growth.

Provides Moisture – Activated Extended Control
Removes weed competition during the critical weed free period
Provides resistance management when tank mixed with glyphosate
Now registered for use on corn

Learn More

Sortan™ IS Corn Herbicide Helps Growers Maximize Yield

Sortan™ IS corn herbicide helps growers maximize their yield by removing early season weed competition, including volunteer Roundup Ready® canola and wild buckwheat. It provides extended control of tough broadleaf and grassy weeds throughout the crit

Sortan™ IS Corn Herbicide Helps Growers Maximize Yield

Keep Corn Fields Clean of Difficult-to-Control Weeds

Corteva Agriscience helps farmers keep their corn fields clean of difficult-to-control weeds such as wild buckwheat and Canada thistle with industry-leading corn protection solutions such as Sortan IS, Eclipse XC and Lontrel XC.

Keep Corn Fields Clean of Difficult-to-Control Weeds

Sortan™ IS Corn Herbicide Helps Growers Maximize Yield

Keep Corn Fields Clean of Difficult-to-Control Weeds

Announcement

Both Eclipse XC and Lontrel XC have recently been registered for glyphosate tolerant silage, grazing and grain corn. Both products have been proven assets to Western Canadian farmers for many years in canola and are now a tool for corn growers. Offering trusted control on hard to kill weeds such as advanced wild buckwheat, Canada thistle and even volunteer alfalfa. With a very wide window of application, they can be applied from VE to V6.

Frequently Asked Questions

1. When can Sortan IS be applied?

Sortan IS can be used as both a pre-emergent herbicide or a early post emergent up to the V3 stage of corn. It is important to keep your corn crop weed free during this period.

2. Do I need a surfactant with Sortan IS?

If sprayed alone, Sortan IS should be tank mixed with a non-ionic surfactant such as Ag Surf or Agral 90 at 0.2% v/v or 0.2L per 100L spray solution. However, optimum control of weeds occurs when Sortan IS tank mixed with 1 full REL of glyphosate. When tank mixed with glyphosate no additional surfactant is required.

3. How long is the extended control?

7-14 days depending on environmental conditions such as soil temperature and moisture. Wild buckwheat, volunteer canola and redroot pigweed benefit from extended control better than other weeds.

4. How important is moisture for Sortan IS?

In order for Sortan IS to be effective it requires rainfall within 3 to 5 days after application. Activation occurs when the top 5 to 10cm of soil is thoroughly moistened following rainfall and the herbicide is readily available to germinating weeks. If moist conditions are not immanent, consider the timing or usage of Sortan IS.

5. How does Sortan IS preform on kochia?

Sortan IS is not registered to control kochia.

6. What can I tank mix Sortan IS with other the glyphosate?

Sortan IS is only registered with glyphosate. All forms of glyphosate (including diammonium, isopropylamine or potassium salt formulations) are approved for use with Sortan IS. It is not, however, recommended to mix different glyphosate formulations in the same tank.

7. Are there any recropping restrictions with Sortan IS?

Barley, soybeans, white beans, red clover, sorghum, sweet corn, field corn, oats, canola, spring and durum wheat, dry bean, chickpea, sunflower, field pea, lentils, flax, fababeans and potatoes can be planted 10 months after application. Winter wheat may be planted 4 months after application.

8. What rate of Sortan IS should I spray with?

For optimal residual control as a pre-seed – use at the 40ac per jug rate (30g/ac)

When spraying in crop between VE and V3 either the 40ac or 80ac (30g/ac or 15g/ac) per jug rate can be used. Please check the label and weed spectrum. And always tank mix with glyphosate.

1. What other corn herbicides can it be tank mixed with?

For corn, the only herbicide that can be tank mixed is VP480 or other glyphosate products.

2. What stage can I spray Lontrel XC on corn?

Lontrel XC can be sprayed from spike to V6 stage on corn

3. What rate can I apply Lontrel XC on corn?

We recommend the 40/ac per jug rate for optimal weed control

4. What are the cropping restrictions for Lontrel XC?

For pea rotation, rainfall from June 1st to August 31st in the year of application must be greater than 140mm and annual rainfall must be greater than 175mm.

5. Preharvest and grazing restrictions?

Do not allow livestock to graze corn on treated areas or harvest treated field corn for silage as feed within 40 days after last treatment.

6. What is the rainfastness?
a. 4 hours