Velum Prime


Velum® Prime nematicide is making big news. No wonder. Now you can make yield-robbing nematodes a thing of the past, and expect more out of your crop. It even offers early blight protection. To integrate it into your potato protection program, apply it in-furrow at planting. And give your potato yield a chance at being out of this world.

Velum Prime helps to sustain high plant vigour and maximize crop yield through suppression of nematodes. It also provides additional protection to your current early blight fungicide program. It’s easy to use and comes in a liquid formulation with low use rates that makes it ideal for use with existing in-furrow application equipment.

Application Tips

What are Nematodes?

  • Nematodes are microscopic, whitish to transparent invertebrate worms; also known as roundworms or eelworms
  • Without treatment, many nematode species can cause extensive damage to potato crop roots – to the point where yields are reduced by up to 80 percent

Application Rates

Protection Against Rate Timing
POTATO AND OTHER TUBEROUS AND CORM VEGETABLES: Arracacha, arrowroot, artichoke (chinese and jerusalem), canna (edible, Queensland arrowroot), cassava (bitter & sweet), chayote (root), chufa, dasheen (taro), ginger, leren, potato, sweet potato, tanier (cocoyam), turmeric, yam bean (jicama, manoic pea), yam (true)
Root lesion nematodes ( Pratylenchus spp.)2, Root knot nematodes ( Meloidogyne spp.)2, Potato cyst nematodes (including Pale cyst and Golden nematode) ( Globodera pallida, Globodera rostochiensis)2 500 mL/ha (202 mL/ac.) or 4.5 mL/ 100 m row (based on 90 cm row spacing) Soil applications using ground equipment: In-furrow at planting
For best results uniformly spray the band over the seed-pieces and soil.
Early Blight
( Alternaria solani)2
500 mL/ha (202 mL/ac.) or 4.5 mL/ 100 m row (based on 90 cm row spacing) Soil applications using ground equipment: In-furrow at planting
For best results uniformly spray the band over the seed-pieces and soil.
Low growing berry subgroup; bearberry; bilberry; blueberry, lowbush; cloudberry; cranberry; lingonberry; muntries; partridgeberry; strawberry; cultivars, varieties, and/or hybrids of these.
Powdery mildew
(Sphaerotheca macularis)
500 mL/ha (202 mL/ac.) Apply through drip irrigation system preventatively. Continue as needed on a 5- to 7-day interval.
Soil-dwelling, root-feeding nematodes (juveniles, adults)2 500 mL/ha (202 mL/ac.) Chemigation into the root-zone through low-pressure drip, trickle, micro-sprinkler or equivalent equipment. Minimum of 7 day interval between soil applications.

2 Suppression

Application Tips

For soil applications (in-furrow) using ground equipment:
  • Spray specified rate in a 10 - 15 cm band in-furrow at planting and cover with soil. For best results uniformly spray the band over the seed-pieces and soil
  • Apply in 50 - 150 L of water per hectare


  • Formulated as 500 g/L suspension concentrate
  • 4.04 L jug, 2 X 4.04 L case
  • Each 4.04 L jug treats 20 ac.

Crop Restrictions:

Do not replant to alfalfa for 14 days after application. All other crops may be replanted immediately following the last application of Velum Prime.

Resistance Management

Even though Velum Prime provides fungicide benefits, a contact/protectant fungicide program should still be used. When pressure is high and to delay the development of resistance a locally systemic, non-Group 7 product such as Scala fungicide should also be applied.

Do not apply more than the maximum seasonal rate for each specific crop from any combination of products containing fluopyram. Do not apply more than 500 g fluopyram/ha per year, regardless of formulation or method of application (soil or foliar).

Any nematode or fungal population may contain individuals naturally resistant to Velum Prime and other Group 7 nematicides/fungicides. A gradual or total loss of nematode control may occur over time if this product is used repeatedly in the same field. Other resistance mechanisms that are not linked to site of action, but specific for individual chemicals, such as enhanced metabolism, may also exist. Appropriate resistance-management strategies should be followed. To delay nematicide/fungicide resistance:

  • Where possible, rotate the use of Velum Prime or other Group 7 nematicides/fungicides with different Groups that control the same pests
  • Use tank mixtures with nematicides/fungicides from a different group when such use is permitted
  • When Velum Prime is applied as a soil application use another mode of action for the first foliar fungicide application
  • Avoid consecutive applications of Velum Prime or other Group 7 nematicides/fungicides in a season. Alternate applications with fungicides having a different mode of action
  • Nematicide/fungicide use should be based on an integrated disease management program that includes scouting, historical information related to pesticide use and crop rotation and considers host plant resistance, impact of environmental conditions on disease development, disease thresholds, as well as cultural, biological and other chemical control practices
  • Early blight pressure should be monitored throughout the growing season. Heavy disease pressure may require additional systemic foliar fungicide applications
  • Monitor treated nematode populations for resistance development
  • Contact your local extension specialist or certified crop advisors for any additional pesticide resistance-management and/or IPM recommendations for the specific site and pest problems in your area

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