Description
Lontrel Advanced Herbicide controls broadleaf weeds in wheat, barley, oats, triticale, canola, pastures, fallow land, forests and industrial sites. Specifically, each litre contains 600 g of clopyralid as the dimethylammonium salt. Corteva Agriscience Australia Pty Ltd has registered this soluble concentrate for thistles, capeweed, skeleton weed and volunteer legumes.
Lontrel Advanced is a Group 4 (previously Group I) herbicide that disrupts plant cell growth. Because the label covers cereals and canola, growers can treat weeds within the crop. In addition, higher rates give residual control of certain weeds for several months.
Product highlights
- Active constituent: 600 g/L clopyralid as the dimethylammonium salt
- Mode of action: Group 4 (previously Group I)
- Rate range: 25 mL/ha for cereal thistle tank mixes, up to 4.25 L/ha for plantation silver wattle
- Grazing withholding: 7 days for crops, pastures and fallow, and 14 days for Pinus radiata plantations
- Pack sizes: 1 L, 5 L, 10 L and 20 L
How Lontrel Advanced herbicide controls broadleaf weeds
Lontrel Advanced works best on actively growing weeds. Therefore, match the rate to weed size. Small weeds need low rates, whereas large or multi-crown weeds need higher rates.
| Situation | Key weeds | Rate guide |
| Winter cereals | Capeweed, soldier thistle, volunteer legumes | 40 to 300 mL/ha |
| Canola | Capeweed, cotula, saffron thistle, skeleton weed | 50 to 300 mL/ha |
| Pastures and fallow | Hardhead, Californian and other thistles | 25 mL/ha to 2 L/ha |
Application, tank mixing and resistance management
Apply with a coarse or larger droplet size, and do not spray if rain is likely within 3 hours. Lontrel Advanced mixes with MCPA, 2,4-D amine, glyphosate and metsulfuron, among others. Resistant weeds can build up under repeated use, so rotate herbicide groups.
Frequently asked questions
Q. How long is the withholding period?
A. Do not graze or cut for stock food for 7 days after application. Pinus radiata plantations need 14 days. In cereals, do not apply later than 10 weeks before harvest.
Q. Can I sow legumes after Lontrel Advanced?
A. Not straight away, because grain legumes are very sensitive to clopyralid residues. Plantback periods run from 9 to 24 months in southern regions, depending on rate. Cereals and canola can follow at any time.
Q. What spray conditions does the label require?
A. Use a coarse or larger droplet size. Spray only in winds between 3 and 20 km/h, and never during a surface inversion. Record each application within 24 hours and keep the record for 2 years.
Q. Does Lontrel Advanced harm clover and medics?
A. Yes, at the higher pasture rates. It eliminates clovers and medics for at least one year, for example, at the hardhead and Californian thistle rates. Do not use it on lucerne.
Q. Which weeds does Lontrel Advanced control in cereals?
A. It controls capeweed, thistles, skeleton weed and prickly lettuce. It also controls volunteer chickpeas, faba beans, field peas, lentils, lupins and medics. Tank mixes add control of weeds such as sowthistle.
Q. Is Lontrel Advanced comparable to Sabakem Clopyralid 300SL, Clopyralid 300 or Lontrel 750 SG?
A. Similar, but not identical. All contain clopyralid. However, concentrations differ. Lontrel Advanced contains 600 g/L, and the 300 products contain 300 g/L. Lontrel 750 SG is a 750 g/kg granule. Therefore, rates differ, so never swap by volume. Always compare both labels before you substitute.























Brian Purdon
Works very well with a little surfactant. Big Cape problem in wheat paddock. Cape weed can grow quick in warm weather. Gets to big for other chemicals to kill. Been us in my lonterel for 20 years.
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Rom
I have used this product on California and Scottish Thistle infestations using hand sprayer application. Dye and surfactant helps target and increases effectiveness. Wear protective gear as directed.
Results are spectacular. 24 hrs after spraying even well established large thistles exhibit obvious and significant damage, making mopping up of missed weeds a simple task. 48 hrs after spraying weeds are completely terminal and underlying native foliage is unaffected. Looks as though napalm has detonated inside the plant. Brilliant results
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