• January Sale - Check out what has been reduced in the January Sale - CLICK HERE
  • PRE-ORDER Nematodes - ALL of our Nematodes including Nemaslug are avaiable to pre-order for delivery in the SpringCLICK HERE
  • Use Sb Invigorator NATURAL Spray to control pests in unheated greenhouses / conservatories during the winter CLICK HERE
  • For the greenhouse - Use Garlic Candles and Citrox Natural Disinfectant to clear your greenhouse of pests - CLICK HERE
  • Plastic-free seed sowing - Replace plastic pots with Coir Pellets, Coir Pots or soil blocks made with our Soil Block Maker CLICK HERE
   

Nematode Controls

All these nematode controls contain naturally occurring and environmentally friendly nematodes that are easy to use, effective and are safe for children, pets, wildlife, birds and bees. As the biggest supplier of nematodes in the UK and because we have fresh deliveries of nematodes each week, you are guaranteed the freshest stock with the longest expiry date available. Our nematodes are dispatched DAILY by 1st class post.

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  1. Leatherjacket Spring and Autumn Offer

    Regular Price: £33.98

    Special Price £29.98

    NEW LOW PRICE! - Nemasys® Leatherjacket Killer is normally applied inSeptember, but if you have discovered a severe infestation, then you can treat in the spring as well. When applying in the spring you MUST apply at DOUBLE strength as the mature Leatherjackets are much harder to kill and you and you MUST treat in Sept as well. Order our Spring / Autumn Offer and we will send the 1st pack in the spring i.ew/c 12/04/20 (or select dispatch date below) with the 2nd pack following automatically in the Autumn i.ew/c 13/09/20 (or email jess@greengardener.co.uk an alternative date and we will organise it) PLUS SAVE MONEY! Nemasys Leatherjacket Killer is available in 100sqm or 500 sqm packs, so choose the size of the Autumn / Spring Offer below. 

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

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  2. Lawn Pest Pack

    Regular Price: £46.98

    Special Price £42.98

    NEW LOW PRICE! - If you are struggling to identify, which pest their lawn has i.e. leatherjackets or chafer grubs, you can treat with BOTH Nemasys Leatherjacket Killer AND Nemasys Chafer Grubs Killer at the SAME TIME.  If possible, identify which pest you have and then treat with the relavent control, but if this is not possible then you can apply BOTH at the same time. Simply mix the TWO different nematodes (Nemasys Leatherjacket Killer AND Nemasys Chafer Grubs Killer) together and apply to the lawn TOGETHER. It is best to apply in the autumn, but you can apply anytime grubs are discovered and the soil is warm enough i.e. 12c. N.B. Both treatments are perishable, so order when you are ready to apply or pre-order for delivery later i the year by selecting a future date below

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

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  3. Nemasys Chafer Killer 500 sqm

    NEW LOW PRICE! - Chafer grubs are the larvae of chafer beetles and they can quickly devastate a lawn. Control chafer grubs naturally by treating with Nemasys® Chafer Grub Killer containing millions of natural nematodes. It is best to treat in the Autumn (Sept/Oct) when the chafer grubs are newly hatched as they are the most susceptible to the nematodes PLUS the soil is warm (the treatment needs a soil temp of 12c) and the grubs are close to the surface, HOWEVER you can treat at any other times of the year i.e. in the spring/summer, but the mature chafer grubs are much harder to kill, so you must treat in September as well - see out DOUBLE DELIVERY. This pack of Nemasys® Chafer Grub Killer treats 500 sqm. N.B. At this time of year, check your soil temperature as it is very late in the season, but you can pre-order for delivery in the spring i.e. April - select a future date below.

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

    Learn More
  4. Nemasys Chafer Killer 100 sqm

    NEW LOW PRICE! - Chafer grubs are the larvae of chafer beetles and they can quickly devastate a lawn. Control chafer grubs naturally by treating with Nemasys® Chafer Grub Killer containing millions of natural nematodes. It is best to treat in the Autumn (Sept/Oct) when the chafer grubs are newly hatched as they are the most susceptible to the nematodes PLUS the soil is warm (the treatment needs a soil temp of 12c) and the grubs are close to the surface, HOWEVER you can treat at any other times of the year i.e. in the spring/summer, but the mature chafer grubs are much harder to kill, so you must treat in September as well - see out DOUBLE DELIVERY. This pack of Nemasys® Chafer Grub Killer treats 100 sqm. 

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

    Learn More
  5. Chafer Grub Killer Spring and Autumn Offer

    Regular Price: £59.98

    Special Price £55.98

    NEW LOW PRICE! - Nemasys® Chafer Grub Killer is normally applied in September, but if you have discovered a severe infestation, then you can treat in the spring as well, but you MUST treat in Sept as well. Order our Autumn / Spring Offer and we will send the 1st pack in the spring i.ew/c 12/04/20  (or select dispatch date below) with the 2nd pack following in the Autumn i.ew/c 13/09/20 (or email jess@greengardener.co.uk an alternative date and we will organise it) PLUS SAVE MONEY! Nemasys Chafer Grub Killer is available in 100sqm or 500 sqm packs, so choose the size of the Autumn / Spring Offer below. 

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

    Learn More
  6. Nemasys Fruit and Veg Protection - Single Pack

    Nemasys® Fruit and Vegetable Protection (F&V) is the green solution for insect pests in your vegetable garden. This unique mix of different nematodes will protect your fruit and veg from the main insect pests including carrot root fly, cabbage root fly, cutworms, onion fly, sciarid fly, caterpillars, gooseberry sawfly, thrips, and codling moth. Nemasys® F&V is safe to use on food crops, is suitable for use on organic crops and it will not harm pets, children, wildlife or bees. Nemasys® F&V works at temperatures above 12°C/40°F, so apply UNDERGLASS all year round or apply OUTDOORS during the growing season i.e. between March and October. It is a perishable product (it will keep for 2 weeks in the fridge), so order when you are ready to applyNemasys® F&V SINGLE Pack (2 weeks control) treats 60 sqm.

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

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  7. Nemasys Fruit and Veg Protection - TRIPLE Pack for Caterpillars

    Spray with Nemasys Fruit and Vegetable Protection to control caterpillars including Box Tree Caterpillars, Codling Moth and Gooseberry Sawfly. Nemasys® F&V works at temperatures above 12°C/40°F, so apply UNDERGLASS all year round or apply OUTDOORS during the growing season i.e. between March and October. Nemasys® F&V is a perishable product (it will keep for 2 weeks in the fridge), so order when caterpillars are spotted and you are ready to apply. Nemasys® F&V TRIPLE Pack - 3 Packs sent together for controlling caterpillars, sawfly and codling moth each pack treats 60 sqm. 

    N.B. Need a Sprayer? Add one to your basket and save £3.50 off a Solo Sprayer or save £3.99 off a Rechargeable 5 Litre Sprayer when bought with your nematodes (savings applied at the checkout).

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  8. Nemasys F&V Programmes from
    £29.94

    Nemasys® Fruit and Vegetable Protection Programmes - For the best results apply Nemasys® F&V regularly every 2 weeks. Nemasys® F&V is a perishable product, so our unique planned programme is designed to make your life easier and keep your vegetables and fruit pest free and SAVE money too! Each delivery consists of 2 packs of Nemasys F&V, which are applied at 14 day intervals giving 1 months control. Nemasys® F&V needs a soil temperature of 10c and is a perishable product (it will keep for 2 weeks in the fridge), so order when you are ready to start applying or simply select your chosen dispatch date below. Each pack treats 60 sqm and choose between a 3, 4, 5 or 6 pack programme. 

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

    Learn More
  9. Scale Emergency Pest Pack
    £29.98

    Use our Scale Emergency Pest Pack if your plants are heavily infested with scale insect. Spray with SB Invigorator 1st to kill as many of the scale insects as possible and then spray with Scale Nematodes to complete the treatment. The Scale Emergency Pest Pack consists of 250ml of SB Invigorator Spray Concentrate (makes 25 litres of spray for use in your own sprayer) and is sent 1st followed by a course of 3 introductions of Scale Nematodes. The 1st lot of Scale Nematodes will be sent 7 days after the SB Invigorator. Scale Nematodes are a perishable product (it will keep for 2 weeks in the fridge), so order when the pest is present and you are ready to treat. 

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  10. Wireworm Nematodes

    Wireworm are the larvae of the common click beetle. They attack crops such as potatoes, carrots and other root crops. Control wireworms by applying Wireworm Nematodes when the soil temp is 12°C /54°F and the pest is present i.e. normally May to Sept. Our Wireworm Nematodes (Heterorhabditis bacteriophora) are effective at controlling wireworms and are safe to use on food crops and are safe for children, pets and wildlife. Wireworm Nematodes are a perishable product it will keep for 2 weeks in the fridge, so order when you are ready to apply. Wireworm Nematodes treat 100sqm.

    N.B. Need a Haws Rose, Hose-end Feeder or Nematode Applicator - Add one to your basket and save £1.00 off a Haws Rose, save £2.00 off a Hose-end Feeder or save £3.50 off a Nematode Applicator when bought with your nematodes (savings applied at the checkout).

    Learn More

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