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Herbicide

Heat LQ

Group 14

Maximize efficiency with enhanced crop and weed dry down.

When deciding to straight cut your canola, Heat® LQ herbicide can help you cross the finish line quicker. It delivers consistent crop and weed dry down, for easier stock cutting and increased harvest speeds. Heat LQ is also the perfect match for InVigor® canola hybrids with patented Pod Shatter Reduction technology. For a smoother, more profitable finish.

Labels & SDS

6 AVAILABLE

 

 

Labels & SDS

Additional Resources

 

 

Heat LQ Pre-harvest

Crops

Canola

Field Peas

Red Lentils

Soybeans

Wheat

 

 

Benefits

  • Consistent crop and weed dry down
  • Simplify your harvest:
    • Easier crop cutting
    • Increased harvest speed
    • Decreased fuel consumption
    • Less dockage
  • Cleaner fields the following spring

Performance Trials

Weed dry down, 4 to 22 days after application

Harvest productivity comparison of harvest aids

Pre-harvest crop dry down with Heat LQ + glyphosate

Heat LQ harvest aid combine comparison

Application Tips

Pre-harvest Harvest aid

  • Heat LQ is very rainfast and will be limited by the type of glyphosate used. Follow the glyphosate manufacturer’s recommendation for rainfast guidelines.
  • Use a minimum water volume of 10 gal/ac to maximize coverage when tank-mixed with glyphosate in ground applications.
  • Use a minimum water volume of 5 gal/ac for aerial applications.

For best results, it is recommended that Heat LQ be tank mixed with glyphosate on most crops to improve the speed of crop and weed dry down. Glyphosate is not registered for pre-harvest application on sunflowers.

When to Apply


Pre-harvest1

Crop Staging
Barley2,
triticale,
wheat (spring, durum, winter)
Hard dough stage with less than 30% moisture.
A thumbnail impression remains on seed.

Canola

Apply when the crop has reached 80% seed colour change.

Chickpeas Apply when majority of plants are mature with only the upper part remaining green.
Seed moisture is 30% or less. Majority of Desi type seeds are yellow/brown, and Kabuli type seeds are tan/white.

Dry common beans3, soybeans

Apply when stems are green to brown, pods are mature (yellow, brown) and 80 - 90% of leaves have dropped.

Field peas

Apply when 75% of pods have dried down. Peas should be firm in remaining pods.

Red Lentils4

Apply when 75% of seeds are mature, having <30% kernel moisture.

Sunflowers5

Apply when the backs of the heads and bracts are turning yellow, and seed moisture is 20 - 30%.

Maximum Residue Limits

Please note: At the time of printing (2021), BASF has not fully established import tolerances (maximum residue limits (MRLs)) for flax and mustard for all markets around the world. Because these crops are heavily exported, BASF does not support the use of Heat LQ as a harvest aid on flax or mustard at this time.


1 Heat LQ herbicide must be applied after physiological maturity (less than 30% seed moisture). 
2 BASF supports the use of Heat LQ herbicide for pre-harvest on feed barley only. 
3 When tank mixed with glyphosate, consult the glyphosate label or your BASF Sales Representative for information regarding use on specific varieties of dry common beans. 
4 Heat LQ is supported for pre-harvest use on red lentil varieties only. DO NOT apply Heat LQ pre-harvest to green lentils. Please check your grain buyer prior to the pre-harvest application of Heat LQ in red lentils. 
5 Glyphosate is not registered for pre-harvest use in sunflowers. For sunflowers, use Heat LQ as a standalone product only. 

How Much to Apply

Pre-harvest

One case of Heat LQ herbicide tank mixed with glyphosate will treat 40 acres when used on canola, peas, lentils and other registered crops. When using Heat LQ and glyphosate on cereals, one case will treat 40 to 60 acres depending on rate.

Heat LQ tank mixed with glyphosate rate6

43 ml/ac (106 ml/ha)

Glyphosate7 (360 g ae/L)

1.0 L/ac (2.5 L/ha)

Merge adjuvant8

200 - 400 ml/ac (0.5 - 1 L/ha)

 

Water volume

Ground application tank mixed with glyphosate rate

40 L/ac (10 gal/ac) minimum

Aerial application9

20 L/ac (5 gal/ac)

Do not apply glyphosate on sunflowers. 
7 Glyphosate is not included in the case.
8 Merge adjuvant is required and is included with Heat LQ herbicide.
9 Heat LQ is registered for aerial applications. Some glyphosate formulations are also registered for aerial applications; therefore Heat LQ plus glyphosate can be applied through aerial applications when both products have aerial registrations. 

 

Mixing order

  1. Fill clean spray tank 1/2 full of clean water and start agitation.
  2. Add the correct amout of Heat LQ herbicide and continue to agitate until mixed.
  3. Add the correct amount of glyphosate while continuing agitation.
  4. Add the correct amount of Merge adjuvant to the tank last.
  5. Continue agitation while adding the remaining amount of water.
  6. Continue agitation or run the by-pass system.

Follow Crops

Pre-harvest

In the spring following fall application

Barley (spring, winter)
Canary seed
Canola (all types incl. Clearfield® canola)
Chickpeas
Corn (field and sweet)
Dry common beans
Field peas
Flax
Lentils
Mustard
Oats
Soybeans
Wheat (spring incl. Clearfield wheat, winter, durum)

Pre-harvest interval1

2 days after application for chickpeas and dry common beans.

3 days after application for barley (including feed varieties), canola, field peas, red lentils, soybeans, triticale and wheat.

7 days after application for sunflowers.

When tank mixed with glyphosate, the pre-harvest interval for the most restrictive product must be followed. In most cases, this is 7 - 14 days for glyphosate. Check the glyphosate label for detailed information.

FAQ

Should growers change up their water volumes for a pre-harvest aid application if it’s particularly hot or dry out when they apply Heat LQ herbicide?

One of the most important factors of a successful pre-harvest dry down is water volume. Apply Heat LQ herbicide in a water volume of 10 - 20 gal/ac and at a pressure of 240 kPa. For applications to dense weed infestations and thick canopies, use a higher water volume at a pressure of 275 kPa. The rate of dry down also increases with water, so consider using different volumes to stagger your straight cutting operations.

For a pre-harvest application, does the amount of time it takes for Heat LQ herbicide plus glyphosate to effectively dry down canola vary, depending on certain conditions?

Similar to all pre-harvest aids, Heat LQ plus glyphosate will work best under favourable environmental conditions like warm temperatures, high sunlight and low humidity. Adverse weather conditions such as rainfall, cool temperatures, smoke or high humidity will slow your canola crop dry down.

To optimize these conditions, slow your sprayer speeds, use higher water volumes (40 L/ac when tank mixed with glyphosate), use nozzles that point backwards and adjust for finer droplets to penetrate the canopy for a more thorough and even dry down.

Heat LQ Pre-seed/Pre-emergence

Crops

Cereals

Corn

Field Peas

Lentils

Soybeans

 

 

Benefits

  • Broadleaf weed control in as few as 3 to 5 days, depending on growing conditions.
  • Unique Kixor® herbicide controls Group 2-resistant and glyphosate-resistant broadleaf weeds.
  • Rainfast and quickly absorbed for fast, complete weed control even under cool conditions.
  • Provides suppression of secondary broadleaf weed flushes when applied at appropriate rates.

Weed Management

Pre-seed/Pre-emergence/Chemfallow

Weed Class

List of Weeds

Broadleafs 8-leaf (except where indicated)1

Canada fleabane2
Cleavers3 (4 whorls)
Dandelion4 (15 cm height)
Flixweed
Kochia2 (15 cm height)
Lamb’s quarters
Narrow-leaved hawk’s beard (8 cm height)
Redroot pigweed3
Round-leaved mallow
Stinkweed3
Volunteer canola3,5
Wild buckwheat3
Wild mustard3

 

1 Depending on growing conditions.
2 Includes Group 2-resistant and glyphosate-resistant biotypes.
3 For suppression of secondary flushes in addition to rapid burndown, use higher application rate of 59 ml/ac (146 ml/ha).
4 Top growth burndown control only of perennial plants, control of spring germinating plants.
5 All herbicide-tolerant canola systems including glyphosate-tolerant canola.

Application Tips

Pre-seed/Pre-emergence

  • Heat LQ is very rainfast and will be limited by the type of glyphosate used. Follow the glyphosate manufacturer’s recommendation for rainfast guidelines.
  • Always add Merge® adjuvant.
  • Use a minimum water volume of 5 gal/ac to maximize coverage.
  • If weeds are large or densities are high, use a minimum water volume of 10 gal/ac.

Smoulder herbicide is another pre-seed option for barley and wheat (durum, spring and winter).
Voraxor herbicide is an additional pre-seed option for peas, lentils, corn, soybeans, wheat and barley.

Smoulder product page
Voraxor product page

The tank mix with glyphosate may affect the seed germination. DO NOT tank mix with glyphosate when harvested grain is to be used for seed. DO NOT tank mix glyphosate with Heat LQ on sunflowers.

When to Apply

Crops and staging

Pre-seed/Pre-emergence

Crop Staging

Barley
Canary seed
Chickpeas (kabuli)
Corn (field, sweet)
Field peas
Lentils
Tame oats
Tritacle
Soybeans
Wheat (spring, winter, durum)

Apply pre-seed and pre-emergence (before ground crack) prior to seeding the following crops.

Chemfallow

Apply to actively growing weeds.

How Much to Apply

Pre-seed/Pre-emergence

One case of Heat LQ herbicide will treat 30 to 80 acres, depending on rate used. One tote treats 2,000 acres for lentils and soybeans and 730 to 2,000 acres for all other crops.

Barley, canary seed, chickpeas (kabuli), corn (field, sweet1), field peas, tame oats, wheat (spring, winter, durum)

21.5 - 59 ml/ac
(53 - 146 ml/ha)

Lentils2

21.5 ml/ac
(53 ml/ha)

Soybeans3

21.5 - 29.5 ml/ac
(53 - 73 ml/ha)

Chemfallow

21.5 - 59 ml/ac
(53 - 146 ml/ha)

 

All applications

Glyphosate4(360 g ae/L equivalent)

0.5 - 1 L/ac (1.25 - 2.5 L/ha)

Merge adjuvant5

200 - 400 ml/ac (0.5 - 1 L/ha)

 

Water volume

Ground application

20 - 40 L/ac (5 - 10 gal/ac)

 

1 Some sweet corn hybrids may be sensitive to saflufenacil and injury may occur.
2 Do not use rates higher than 21.5 ml/ac (53 ml/ha) or injury could result. See label for details.
3 Do not use rates higher than 29.5 ml/ac (73 ml/ha) or crop injury may result. See label for details. Some soybeans cultivars may be more sensitive to saflufenacil and injury may occur.
4 Glyphosate (required for optimum activity) is not included in the case.
5 Merge adjuvant is required and is included with Heat LQ herbicide.

 

Mixing order

  1. Fill clean spray tank 1/2 full of clean water and start agitation.
  2. Add the correct amout of Heat LQ herbicide and continue to agitate until mixed.
  3. Add the correct amount of glyphosate while continuing agitation.
  4. Add the correct amount of Merge adjuvant to the tank last.
  5. Continue agitation while adding the remaining amount of water.
  6. Continue agitation or run the by-pass system.

Follow Crops

Pre-seed/Pre-emergence

All crops, 1 year after a spring, pre-seed or pre-emergent application.

FAQ

When should I use Heat Complete vs. Heat LQ with glyphosate for my pre-seed burndown, and at what rates?

For strictly pre-seed burndown control, Heat LQ plus glyphosate is effective at the 80-acre rate. For additional residual on volunteer canola, wild buckwheat, cleavers and stinkweed, Heat LQ plus glyphosate provides excellent residual suppression at the 30-acre rate. Heat Complete plus glyphosate provides residual suppression of all those weeds with the addition of kochia, pigweed, lamb's quarters, wild oats, and green and yellow foxtail.

One of our problem weeds is kochia in our cereal crops. What products or practices do you recommend for a pre-seed burndown to control it?

Group 14 chemistries, such as Heat LQ herbicide, seem to be one of the best options. With kochia, it's important to make the following two assumptions: glyphosate resistance is more than likely and it's safe to assume that all kochia in Western Canada is also Group 2-resistant. That leaves Group 3, 4, 5 and 14 for use as pre-seed burndown options for cereals. Regarding best practices, slow down the sprayer (no more than 14 mph), lower the boom height (no higher than 26 inches), increase water volumes (specifically for Group 14 products that have contact activity), rotate chemistries and consider a forage crop in the fall that will take up available moisture and compete with kochia.