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Velum Prime

Velum Prime is a liquid formulation with a new mode of action that can be applied in-furrow to offer improved ease of use and significantly lower dose rates than traditional granules.

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Control PCN for improved yields.

Controlling PCN populations is your first key step to ensure high-quality potato yields. When populations can remain in the soil for decades, it’s important to treat PCN at the start of each growing season as PCN can cause yield losses of up to 35% - costing UK potato farmers an average of £26M each year (AHDB).


Always read the label before use.

What is Velum Prime?

A liquid nematicide for potatoes applied in-furrow at planting.

Product Profile

Active substance 400 g/L fluopyram
Formulation Suspension Concentrate (SC)
Pack Size 5 L
Water Volume
200 - 500 L/ha
Buffer Zone None
MAPP 18880

Important Information

Max. individual dose 0.625 L/ha
Max. number of treatments
One per crop
Latest time of application
At planting

Why you need Velum Prime

Finally. An easier way to treat PCN.

Protecting potato yields from PCN has just become a lot easier with the arrival of Bayer’s new nematicide Velum Prime. It’s an ultra low dose, liquid nematicide for in-furrow application which will change the way PCN is managed:

  • Easy handling – dramatic reduction in nematicide bulk and returnable packs
  • Easy application – just 0.625 L/ha to apply by conventional in-furrow applicator
  • Easy management – no harvest interval so easy to use on any crop type
  • Easy decision – make Velum Prime the core of your nematicide strategy

In its development Velum Prime has been investigated from every angle, under extreme pressure and throughout the British Isles. It protects yield and delivers the level of population management needed to help keep potato production sustainable.


When and how to apply

Pests controlled

Velum Prime is effective against both species of potato cyst nematode (PCN): Yellow potato cyst nematode (Globodera rostochiensis) and white potato cyst nematode (Globodera pallida). However, in some soils with high organic matter, control of Globodera pallida may be less effective.


Apply Velum Prime as in-furrow spray, using on-planter application technology. It is important to direct spray into the planting furrow and not onto the seed tuber. Application should be made using two nozzles per row; one at the front of the planting share and directed down into the furrow and the second at the rear of the share and directed so to spray the soil as it closes around the planted furrow.

If the crop is intended for processing consult the processor before use.

Succeeding crops

Cardoons, celeries, Florence fennels and crops belonging to the category ‘other stem vegetables’ cannot be allowed as succeeding crops.


Velum Prime may be used on all commercial varieties of potatoes. Whilst no additional data (crop safety and efficacy) has been provided, crops grown under plastic can be treated at the grower’s risk.


Resistance Management

Velum Prime contains fluopyram (pyridinyl-ethyl-benzamide). As nematicides are not included in the mode of action classification scheme of IRAC, fluopyram is not assigned to any mode of action class by IRAC. However, fluopyram also controls certain plant pathogens and is classified by FRAC as a member of the Succinate-Dehydrogenase Inhibitor (SDHI) group of fungicides. A resistance management strategy in the crops where Velum Prime is applied also requires consideration of uses of other SDHIs for disease control.

Nematode Resistance

Velum Prime contains an active ingredient with a new mode of action for use as a nematicide. The resistance risk in nematodes is considered to be low based on experience of the use of organophosphates.


Where Velum Prime has been applied the first foliar fungicide application made to the crop must not be a member of the SDHI group.

See FRAC for more information on SDHI fungicides