What are the adjuvant requirements for Laudis corn herbicide?
- Laudis requires the use of a Methylated Soybean Oil (MSO) adjuvant
- Use of a spray-grade liquid nitrogen fertilizer is recommended
- A methylated soybean oil MSO (HASTEN™ NT Ultra) 1.75 L/ha – Oil based surfactant may be used. See guidance below.
- Laudis + atrazine MUST use adjuvant + UAN/AMS
- Roundup® + Laudis +/- atrazine on non-glyphosate resistant (GR) weeds does not require an adjuvant
- Roundup + Laudis +/- atrazine on GR weeds requires an adjuvant
- Roundup Xtend® herbicide with VaporGrip® Technology1 or XtendiMax® herbicide with VaporGrip® Technology + Laudis requires an MSO adjuvant, but DO NOT include UAN/AMS when targeting GR weeds. If no glyphosate resistant (GR) weeds are present, there is no need for an additional adjuvant.
What are best practices for GR weed management with Laudis?
- For GR weeds such as waterhemp, giant/common ragweed, Laudis alone is very effective, but the addition of another effective mode of action such as atrazine and / or Roundup Xtend or XtendiMax (dicamba) will further improve control and should be used especially for waterhemp management
- For control of Canada fleabane, adding Roundup Xtend or XtendiMax (dicamba) as a tank mix partner will provide the best control
- Follow adjuvant + UAN/AMS guidelines and recommendations
Is Laudis a good post emerge option after a pre-emerge application of Converge® XT herbicide or Converge® Flexx or (i.e. using a HPPD pre followed by an HPPD post)?
If using Converge® as a pre-emerge herbicide followed by Laudis post emerge, ensure you have an effective mode of action in both tank mixes for a proper resistance management strategy
Is Laudis included in the Eastern Canada 2021 BayerValue Rewards Program?
Yes, Laudis is part of the Eastern Canada BayerValue™ Rewards Program offer for 2021
Is Laudis registered for use on seed corn?
No, Laudis is currently not registered for use on seed corn at this time. Laudis is registered for use on field and sweet corn.
What is the re-cropping interval for edible beans and white beans?
The re-cropping interval for dry beans is 22 months
What is the application rate of Laudis?
The target application rate is 220 mL/ha (89 mL/ac.)
What are the main weeds that Laudis controls?
Laudis provides excellent control of a number of key broadleaf weeds including velvetleaf, redroot pigweed, lamb’s-quarters and common ragweed. In addition to these weeds, Laudis provides control of GR variants of waterhemp, giant ragweed, Canada fleabane and kochia. Laudis provides suppression of ALS (Group 2) resistant biotype grass species including giant foxtail, green foxtail as well as suppression of wild buckwheat.
I forgot to add an adjuvant. What can I expect from Laudis performance?
The oil-based adjuvant is in the product label to ‘heat up’ the HPPD burn on weeds. If you are tank mixing with Roundup and do not have GR weeds present you will see no efficacy differences because Roundup will control emerged weeds. If GR weeds are present like Canada fleabane or waterhemp you may see reduced control, but you also need to have at least one more tank mix partner like atrazine or XtendiMax in the tank as well for two effective modes of action.
Do I need to add Hasten + UAN (28%) if I’m mixing with glyphosate?
If you’re using Roundup brand products the answer is no; provided you aren’t targeting GR weeds. Roundup brand products have enough built in surfactant already. If you’re using another glyphosate brand you may still want to put in an MSO and UAN (28%) in the tank as Bayer hasn’t tested efficacy with all formulations in the market.
Can I use AMS instead of UAN (28%)?
Yes, these products can be used interchangeably.
Will the UAN (28%) burn my corn?
The UAN (28%) is in the mix to heat up the HPPD efficacy, the built in safener (isoxadifen) will reduce chances for UAN (28%) burn on corn. In most situations you will not see any additional burn from the UAN (28%).
What is the tank mix order for Laudis + adjuvants and its main tank mix partners – Hasten™, UAN (28%), Roundup, Roundup Xtend, etc.?
Add Laudis first and the tank mix partner second (i.e. Roundup, atrazine, etc.). If there is more than one tank mix partner add Roundup last. Next add an oil-based adjuvant and last add the AMS/UAN.
What is the water volume for application of Laudis?
Apply Laudis in a minimum of 100 L/ha (10 gal./ac.) of water. For weed control in dense seed populations or under adverse growing conditions, 150 to 200 L/ha (15 to 20 gal./ac.) of water is recommended.
What is the rainfastness of Laudis?
Laudis is rainfast in 2 hours after application for most weed species
What is the application window for Laudis?
The application window for Laudis is from the 2 to 8 leaf stage. If using Roundup Xtend or XtendiMax as a tank mix partner, the application window is from the 2 to 5 leaf stage.
What are the cropping restrictions?
Laudis is not registered for use on seed corn at this time.
Why does the Laudis label have a treatment per day restriction to 150 ha (370 acre per day)?
The 150 ha (370 ac) treatment per day restriction has been put in place by the PMRA regulatory body. This restriction is to ensure that the acceptable tembotrione exposure to mixers, loaders and applicators is not exceeded. Future label amendments will attempt to address this.
1 Use in corn hybrids with Roundup Ready® 2 Technology only.