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Asorbital formulation technology

Asorbital Technology

AsorbitalTM formulation technology takes the performance of prothioconazole fungicides to the next level: with an inbuilt adjuvant which enhances leaf uptake, and a special solvent system which ensures the active ingredient reaches and protects every part of the leaf, ADAMA’s unique formulation consistently outperforms the market leading prothioconazole fungicide.

AsorbitalTM fungicides also boast improved levels of rainfastness, so crops remain protected for longer.

Powering up the performance of prothioconazole at T3

Prothioconazole is widely used against a range of cereal and oilseed rape diseases, but not all brands of this generic active ingredient are created equally: compared to standard formulations, ADAMA’s unique AsorbitalTM formulation technology enables growers to power-up their fungicide programmes by switching to a product with enhanced activity against a range of wheat, barley, oat, rye and oilseed rape diseases. 

Both of ADAMA’s straight prothioconazole products – SORATEL (250 g/L prothioconazole) and MAGAN (250 g/L prothioconazole) – are the ideal choice at the T3 timing as they offer improved control of fusarium ear blight and better control of septoria, rusts and mildew compared to the current market-leading prothioconazole brand. 

Independently proven benefits

Independent laboratory trials have shown that the uptake of ADAMA’s AsorbitalTM formulation is quicker and more effective against septoria compared to the market leading prothioconazole product.

In the trial, a standardised amount of the test products was applied to the basal part of wheat leaves, with the apical part of the leaves left untreated. The apical part was then removed, and the basal part washed to remove any remaining active ingredient on the leaf surface. Both parts were then inoculated with septoria and incubated under saturated, humid conditions. Septoria lesion lengths were then assessed at 21 and 28 days post inoculation, with the results reflecting the quantity of active ingredient present in each part of the leaf: less disease in the basal part indicated better penetration into the leaf; less disease in the apical part indicated better migration from the basal part to the apical part. 

Septoria lesion lengths were assessed at 21 and 28 days post inoculation, with the results (illustrated in the graphs below) reflecting the quantity of active ingredient present in each part of the leaf: 

  • Less disease in the basal part indicated better penetration into the leaf 
  • Less disease in the apical part indicated better migration within the leaf 
Leaf Uptake and Migration Study wheat – Study Design

ADAMA’s AsorbitalTM formulation is taken up more quickly than the market leading prothioconazole product, resulting in better protection against septoria.

dpi = days post inoculation 
hAA = hours after application 
Source: Independent laboratory trials, BIOtransfer, France 2021 

Leaf Uptake over 24 hours Efficacy against Septoria

The ADAMA formulation also offers better protection against septoria in non-treated leaf areas thanks to its superior movement within the leaf.

dpi = days post inoculation 
DAA = days after application 
 Source: Independent laboratory trials conducted by BIOtransfer, France 2021 

Migration in the leaf over time Efficacy against Septoria

Longer lasting protection

Laboratory trials have also shown that the AsorbitalTM formulation offers better rainfastness than the market leading prothioconazole product. 

In this trial, wheat plants were treated at the 2-3 leaf stage and subjected to 40mm of simulated rainfall at 1 or 3 hours after treatment. The plants were inoculated with septoria 24 hours later, and disease levels assessed after 21 days. In both cases, the AsorbitalTM formulation achieved better control of septoria compared to the market leading product. 

Efficacy (% of no rain treatment, 21 dpi)  against Septoria

Enhanced disease control

Extensive trials in the UK and Europe have shown that the improved uptake and migration of ADAMA’s AsorbitalTM formulation results in significantly better control of all target diseases compared to other prothioconazole products. 

Under UK conditions, ADAMA’s AsorbitalTM formulation provides improved control of septoria, yellow rust and fusarium in wheat, with a 13% uplift in control of fusarium compared to the market leading prothioconazole product.

SORATEL® outperforms market leading prothioconazole against Fusarium head blight

ADAMA’s AsorbitalTM formulation also delivers improved control of rhynchosporium and net blotch in barley.

ADAMA’s AsorbitalTM formulation provides similar improvements against sclerotinia (+18% control) and alternaria in oilseed rape.

Two straight prothioconazole products, one unique formulation

ADAMA’s unique AsorbitalTM formulation is available in two straight prothioconazole fungicides, both of which can be used at the T3 timing in wheat. 
Crop  Diseases controlled 
Wheat  Eyespot, septoria (leaf and glume blotch), powdery mildew, yellow rust, brown rust*, tan spot*, ear disease complex – fusarium ear blight* (reduction of deoxynivalenol) and reduction of sooty moulds 
Barley  Eyespot, powdery mildew, yellow rust, brown rust, ear disease complex – fusarium ear blight* and reduction of sooty moulds, rhynchosporium and net blotch 
Rye  Eyespot, powdery mildew, brown rust and rhynchosporium 
Oats  Eyespot, crown rust and mildew 
Winter OSR  Light leaf spot*, phoma leaf spot, stem canker, sclerotinia stem rot 

(* provides moderate control) 

Doses and application timings 

Crop  Max individual dose (l/ha)  Max total dose (l/ha)  Latest application timing 

Winter & spring wheat 

Winter rye 

0.8  2.4  Before milky grain ripe stage (GS 70) 

Winter & spring barley 

Winter and spring oats 

0.8  1.6  Before beginning of flowering (GS 61) 
Winter oilseed rape  0.7  1.4  Full flowering (BBCH 65) (PHI 56 days) 

More information 

For more information about how our AsorbitalTM technology could power up your disease control programme, click on the product images above or speak to one of our agronomy experts by calling the ADAMA technical helpline on 01635 876 622.