BASF Professional & Specialty Solutions
Nemasys® F
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Nemasys® F is a biological control which effectively targets the larval stages of sciarid flies (also known as fungus gnats), western flower thrips and leafminers including Tuta absoluta in greenhouse horticulture production.
Benefits
✓ Effective natural control
✓ The potential for a high level of crop damage and reduction in crop value from sciarid and fungus gnat larvae, western flower thrips and leafminers is reduced
✓ Eliminates the potential for chemical residues in food crops
✓ Organic farming and IPM-compatible
✓ No pest resistance issues
Product Details
| Active ingredient(s) | Steinernema feltiae (90%) |
| Formulation | Paste (PA) |
| Pack size | 50 million or 250 million |
| Area treated | 50 - 200 m2 (50 million pack) 250 - 1000 m2 (250 million pack) Area treated depends on pest and rate of application For Tuta absoluta: 125 - 1,250 m2 depending on water volume (50 million pack) 625 - 6,250 m2 depending on water volume (250 million pack) |
| Crops | Greenhouse horticulture |
| Pest activity | Larval stages of sciarid flies (Bradysia spp.), western flower thrips (Frankliniella occidentalis) and leafminers including the Tomato leafminer (Tuta absoluta) |
| Rate of application | 250,000 – 1,000,000 nematodes per m2 For Tuta absoluta = 1,000,000 per litre = 400 million-4 billion per hectare at the recommended 400-4,000 litres per hectare water volume (see label) |
| Frequency of application | As required |
| Time of application | During propagation and preventatively as required |
| Water volume | Up to 1 litre per m2 depending on pest (see label) |
| Aquatic buffer zone | None |
Why Nemasys® F?
Nemasys® F is a biological control product containing nematodes. It effectively targets:
The larval stages of sciarid flies (Bradysia spp.);
- Feeding damage to young roots and the base of cuttings
Western flower thrips (Frankliniella occidentalis):
- Silvery patches on leaves and flowers
- Distortion of foliage and fruit
- Reduced fruit set
- Viral transmission eg necrotic spot virus (INSV) and tomato spotted wilt virus (TSWV)
Leafminers including Tuta absoluta
- Larval mining of leaves, shoots and fruit which is unsightly and can reduce quality and result in downgrading of produce eg tomatoes
Nemasys® F is compatible with IPM (Integrated Pest Management) systems and organic farming. Nemasys® F persists for approximately 4 weeks in moist compost, thus protecting against newly emerging pests. There is no known resistance of the target pests to Nemasys® F.
How to get the best from Nemasys® F:
- Apply when the substrate is between 10-30 oC
- Use immediately on receipt of packs or refrigerate at 5oC (do not freeze)
- Use within expiry date
- Use the entire pack and do not store stock solution or diluted product
- Make a stock solution as directed on the label, making a paste in the first instance and then adding remainder of the water, to avoid lumps forming; this solution should be mixed thoroughly to ensure nematodes are well dispersed and kept agitated
- Application is as a foliar spray or drench to the growing medium via boom, lance or sprinklers, selecting the nozzle to give a medium (foliar) or coarse (drench) spray; the nozzle aperture should be greater than 0.5 mm, or via drip irrigation. A Dosatron unit can be used.
- Remove all fine filters (50 mesh or smaller) from the application equipment
- Partially fill tank with water, add stock solution, fill with water to the required level and maintain agitation
- Do not exceed 300 psi/20 bar/2000 kPa pump pressure
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Nemasys® F Downloads and Links
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Information: Use plant protection products safely. Always read the label and product information before use. For product information including warning phrases and symbols refer to the products section.