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Laudis Herbicide

Laudis® herbicide provides exceptional control of annual broadleaf weeds (including glyphosate resistant biotypes) in field corn and sweet corn with excellent crop safety.

Product Summary

Product Type

Herbicide

Crops

Field corn
Sweet corn

Weeds Controlled

Canada fleabane
Giant ragweed
Kochia
Waterhemp

Groups & Active Ingredients

Tembotrione (Group 27)

Formulation Type

Suspension concentrate

Packaging

3.6 L jugs

Performance

  • Excellent post emergence broadleaf control, including tough to control glyphosate resistant weeds such as Canada fleabane, giant ragweed, kochia, and waterhemp
  • Built-in safener for exceptional crop safety on field corn and sweet corn types with favorable rotation intervals
  • Rapid burndown and up to 3 weeks of residual activity at the high rate of 220 mL/ha (89 mL/ac.)
  • Excellent resistance management tool and tank mix partner with Roundup® brands

Laudis in a 2-Pass Program

Source: 2021 Western Canada Market Development (n=5). A total of 17 weed hits, 13 broadleaves and 4 grasses. Treatment means are significantly different at P>0.05. Your results may vary depending on agronomic, environmental and pest pressure variables.

Laudis in a Post Program

Source: 2021 Western Canada Market Development (n=8). A total of 27 weed hits, 21 broadleaves and 6 grasses. Treatment means are significantly different at P>0.05. Your results may vary depending on agronomic, environmental and pest pressure variables.

Crops

  • Field corn
  • Sweet corn

Effective Against

Weeds Controlled:

  • Canada fleabane*
  • Common ragweed*
  • Common waterhemp*
  • Giant foxtail**
  • Giant ragweed*
  • Green foxtail**
  • Kochia*
  • Redroot pigweed*
  • Velvetleaf*

* Includes ALS/SU (Group 2), auxin (Group 4), glyphosate (Group 9), PPO (Group 14), and triazine (Group 5) resistant biotypes
** Suppression only

How to Apply

  • Apply with groundboom equipment only. Do not apply using aerial application equipment.
  • Laudis herbicide can be applied broadcast in a minimum of 100 litres of water per hectare (10 gal./ac.). For weed control in dense weed populations or under adverse growing conditions, 150 to 200 litres of water per hectare is recommended (15 to 20 gal./ac.). Good coverage is essential to achieve optimum weed control.
  • Uniform, thorough spray coverage is important to achieve consistent weed control. Select nozzles and pressure that deliver medium spray droplets as indicated in nozzle manufacturer’s catalogs and in accordance with ASAE Standard S-572. Nozzles that deliver coarse spray droplets may be used to reduce spray drift provided spray volume per hectare (L of water/ha) is increased to maintain coverage of weeds.
  • Flat fan nozzles of 80° or 110° are recommended for optimum post emergence coverage. Do not use nozzles that produce fine (e.g. cone) or extra coarse (e.g. flood jet) spray droplets.
  • Typically, flat-fan nozzles operated at 200-400 kPa will deliver medium spray droplets, providing optimum spray coverage and canopy penetration. Lower pressure operation and/or higher volume flat fan nozzles typically deliver coarse sprays. Refer to nozzle manufacturer catalogs.
  • Boom height should be based on the height of the crop – at least 33 centimeters above the crop canopy
  • Air induction nozzles should be used at or near 550 kPa to produce a medium droplet size
  • Proper agitation should be maintained within the tank to keep the product dispersed

Re-crop Interval

Immediate plant back 3-4 months 10 months 22 months
Field corn
Sweet corn
Winter wheat Potatoes
Soybeans
Spring wheat
Dry beans

Crop Staging

Crop stage at application timing Field corn* Sweet corn*
1 2- to 5-leaf stage 2-leaf stage up to and including the 8-leaf stage
2 Up to and including the 8-leaf stage Do not apply

*Do not apply more than two applications of Laudis herbicide to field corn or more than one application to sweet corn, per growing season

Application Guidelines and Timing, Pre-harvest Application

Weeds Controlled1 Recommended Stage Products Rates
Common lamb’s-quarters Up to 6 leaf-stage Laudis logo

Laudis herbicide plus adjuvant system*

145 mL/ha
(59 mL/ac.)
Giant foxtail2 Up to 2 tillers
Redroot pigweed Velvetleaf Up to 6 leaf-stage
Canada fleabane3 Up to 10cm height/diameter 220 mL/ha
(89 mL/ac.)
Common ragweed
Common waterhemp
Giant ragweed
Up to 6 leaf-stage
Green foxtail2 Up to 2 tillers
Kochia5 Up to 6 leaf-stage
Wild buckwheat2,4 Up to 6 leaf-stage

1 Includes ALS/SU (Group 2), Auxin (Group 4), Glyphosate (Group 9), PPO (Group 14), and triazine (Group 5) resistant biotypes.
2 Suppression only
3 For improved control of Canada fleabane - field corn only: apply Laudis herbicide in tank-mix with one of the dicamba-containing tank-mix partners. Refer to label for more details.
4 For control of wild buckwheat - field corn only: Laudis herbicide may be tank-mixed with 1.2 L/ha of Aatrex® Liquid 480 Herbicide. Maximum of one (1) application per season. Apply to field corn at the 2- to 5-leaf stage.
5 A minimum of 180 mL/ha is required for season-long control of kochia. Use higher rate within the labelled rate range of Laudis herbicide for weed control in dense weed populations or under adverse growing conditions.

Application Tips

  • For best results, apply to emerged, young, and actively growing weeds
  • Do not apply more than 2 applications of Laudis herbicide to field corn or more than 1 application to sweet corn, per growing season
  • Laudis requires the use of a Methylated Seed Oil (MSO) adjuvant
  • Use of a spray-grade liquid nitrogen fertilizer is recommended
  • For ground application:
    • Boom height should be based on the height of the crop – at least 33 centimeters above the crop canopy
    • Apply in a minimum of 100 litres of water per hectare (10 gal./ac.). For weed control in dense weed populations or under adverse growing conditions, 150 to 200 litres of water per hectare (15 to 20 gal./ac.) is recommended.
  • Restricted Entry Interval (REI) is 12 hours
  • Pre-harvest interval: 45 days for grazing and harvested grain or forage
  • If tank-mixing, always respect the maximum pre-harvest/grazing interval stated on the labels of all the tank-mix products.

Water Volumes and Tank Mixing

Water Volumes

Laudis herbicide can be applied broadcast in a minimum of 100L/ha (10 gal./ac.) of water. For weed control in dense weed populations or under adverse growing conditions, 150 to 200 L/ha (15 to 20 gal./ac.) of water is recommended. Good coverage is essential to achieve optimum weed control.

Rainfastness

Laudis is rainfast 2 hours after application

Tank Mixing Procedure

Refer to product label

Tank Mix Flexibility

Laudis is an ideal tank-mix partner for:

  • Roundup Transorb® HC liquid herbicide1
  • Roundup WeatherMAX® with Transorb® 2 Technology liquid herbicide1
  • Roundup Xtend® with VaporGrip® Technology1,2
  • XtendiMax® with VaporGrip® Technology2
  • Atrazine
  • Pardner® herbicide

1 Use in corn hybrids with Roundup Ready® 2 Technology only.
2 Do not tank mix these products with UAN or an additional adjuvant.

How to Manage Resistance?

Resistance Management

Laudis herbicide contains an active ingredient from Group 27 which helps manage herbicide resistant weeds. Laudis should be used as part of an integrated pest management system.

Mix Groups

Use tank mixtures with herbicides from a different Group when such use is permitted. To delay resistance, the less resistance-prone partner should control the target weed(s) as effectively as the more resistance-prone partner.

Herbicide use should be based on an integrated weed management program that includes scouting, historical information related to herbicide use and crop rotation, tillage (or other mechanical control methods), cultural (for example, higher crop seeding rates; precision fertilizer application method and timing that favors crop and not weeds), biological (weed-competitive crops or varieties) and other management practices. Weed size should also be considered, as the product is more effective on smaller weeds.

Monitor Weed Populations

After all herbicide applications check weeds in your fields for signs of resistance development (for example, one weed species on the herbicide label may not be controlled). If resistance is suspected, prevent weed seed production in the affected area if possible, by using an alternative herbicide from a different Group. Prevent movement of resistant weed seeds to other fields by cleaning harvesting and tillage equipment when moving between fields, and always plant clean seed. Have suspected resistant weed seeds tested by a qualified laboratory to confirm resistance and identify alternative herbicide options.

Advice

Contact your local extension specialist, certified crop advisor, or Bayer at 1 888-283-6847 for any additional pesticide resistance-management and/or integrated weed-management recommendations for specific crops and weed biotypes.

Provinces of Registration

  • Manitoba
  • New Brunswick
  • Newfoundland
  • Nova Scotia
  • Ontario
  • Prince Edward Island
  • Quebec
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