I had an enormous problem with vine weevil in three greenhouses full of irreplaceable auriculas- Nemasys® worked magnificently. Mr G. from Bristol

Thank you for saving my plants. I lost so many before I used your Nemasys® I wouldn't be without it and I haven't seen a grub for 2 years. S.Sharp

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Green Gardener - the natural way to keep your garden looking good

Controlling Vine Weevils - Vine Weevil is a major pest BOTH under-glass and in the garden, where it can have devastating effects often causing the death of plants. Control vine weevil naturally by applying Nemasys® Vine Weevil Killer to kill the grubs and using Nematop Adult Vine Weevil Traps to control the adults.


  • Nemasys® Vine Weevil Killer contains natural nematodes, which are effective at controlling vine weevil grubs & are safe for children, pets & wildlife. Apply Nemasys Vine Weevil Killer UNDERGLASS all year round or apply OUTDOORS as soon as you discover grubs or apply when the grubs are at their most destructive i.e. the autumn (NOW) and spring.
  • Nematop Adult Vine Weevil Trap - Position these traps containing a nematode gel under your plants in the summer while the adults are active.

Nemasys Double Delivery

Nemasys Standard Double Delivery - ASAP and w/c 09/04/18£21.50Add Nemasys Standard Double Delivery - ASAP and w/c 09/04/18      
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Nemasys Large Double Delivery - ASAP and w/c 09/04/2018£59.00Add Nemasys Large Double Delivery - ASAP and w/c 09/04/2018      
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Nemasys® Programmes - There are at least 2 grub stages a year, so it is important to treat in the Spring and in the Autumn to keep vine weevils at bay, but you may need to apply it MORE OFTEN especially in warmer situations. This is because in warmer situations the vine weevils grubs will be active earlier and later in the season, so you may need to treat more often. Order a Double Delivery and we will AUTOMATICALLY send your packs at the correct time of year and save money!


Nemasys® Double Delivery - Nemasys® Vine Weevil Killer should be applied at least TWICE a year to save your plants from vine weevil grubs. Order our Nemasys® Double Delivery for delivery when grubs are at their most detructive i.e. in the autumn (despatched ASAP) and in the spring (despatched NEXT spring i.e. w/c 09/04/2018) and save money too!


Nemasys Standard Double Delivery (treats 160x12" pots or 15sq.yds) normally £22.50 price £21.50 saving £1.00

Nemasys Large Double Delivery (treats 100 sqm) normally £63.00 price £59.00 saving £4.00


To order a Nemasys Programme :-

  1. Choose either a standard pack (treats 12sqm or 160x12" pots) or a large pack (treats 100 sqm).

  2. The 1st pack will be sent ASAP.
  3. We will automatically send a fresh pack NEXT spring i.e. w/c 09/04/2018. N.B. If the dates are not convenient, email us the order number & alternative dates & we will send them according.

Nemasys Vine Weevil Killer

Nemasys Vine Weevil Killer Std Pack treats 12sqm - despatched ASAP£11.25Add Nemasys Vine Weevil Killer Std Pack treats 12sqm - despatched ASAP      
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Nemasys Vine Weevil Killer Lge Pack treats 100sqm - despatched ASAP£31.50Add Nemasys  Vine Weevil Killer Lge Pack treats 100sqm - despatched ASAP      
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Hose-end Feeder£13.50Add Hose-end Feeder      
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Haws Rose no14£6.75Add Haws Rose no14      
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Barrier Glue - twin pack with handy dispenser£11.50Add Barrier Glue - twin pack with handy dispenser      
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Soil Thermometer£14.50Add Soil Thermometer      
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Nemasys Vine Weevil Killer Control vine weevils naturally by applying Nemasys® Vine Weevil Killer. Left untreated, vine weevil grubs will feed on your plant roots causing permanent damage and even death. Nemasys® Vine Weevil Killer contains nematodes found naturally in UK soil and has been approved for use in organic gardening by the Soil Association. Apply Nemasys® Vine Weevil UNDERGLASS all year round or apply OUTDOORS when grubs are discovered or apply as a preventative measure when the grubs are at their most destructive i.e. in the spring and autumn.


Adult vine weevils feed on plant foliage taking distinctive "U" shaped notches from the edge of the leaf (pictured left). Adults are about 1cm long, brownish black with drab yellow spots on their backs (pictured right). They are nocturnal and unable to fly, but being quick moving they are difficult to spot. They are fond of rhododendrons, camellias and azaleas as well as herbaceous plants. They only munch the edge of the leaf, which is unsightly. N.B. Leaf damage is a sure sign of vine weevil activity, so check for the more destructive grubs in the roots of your plants.

discovered vine weevil grubsVine weevil grubs are the real problem, attacking the roots of plants. The grubs over-winter in the roots and emerge as adults in late spring / summer. These adults lay eggs in the rootballs of plants. The eggs hatch and feed before over-wintering and then the whole process starts again. Vine weevil grubs grow to about 1cm and are creamy coloured and crescent shaped with an orange head. Affected plants will wilt even though the soil/compost is moist and as more of the roots are destroyed the plant will eventually topple over. Control vine weevils naturally by applying Nemasys® Vine Weevil Killer as soon as you discover grubs (and the soil temp is 5c) or when the grubs are at their most destructive i.e. in the Spring and Autumn.

Nemasys® Vine Weevil Killer - Control vine weevils naturally by applying Nemasys® Vine Weevil Killer, which unlike chemical controls, kills the vine weevil grubs BEFORE they attack the plants and is so safe you can use on pot plants (both in the greenhouse and conservatory), container plants outside, and anywhere in the garden. It also SAFE to use on food crops such as strawberries and herbs! Nemasys® Vine Weevil Killer is safe to you, your children, pets and wildlife. Apply Nemasys® Vine Weevil Killer :-

  • Treat grubs discovered UNDERGLASS at anytime of year.
  • Treat grubs discovered OUTDOORS as long as the soil temp is 5c i.e. normally between March and October.
  • Treat when grubs are at their most destructive i.e. NOW.
  • Keep vine weevils at bay, by applying when the grubs are at their most destructive i.e. in the autumn and spring. Order a Double Delivery for delivery ASAP and spring NEXT year (w/c 09/04).  

Nemasys® Vine Weevil Killer - Nemasys® Vine Weevil Killer contains the natural nematode, Steinernema Kraussei, which is effective at controlling vine weevil grubs, but is totally safe for children, pets and wildlife and can be used on edible crops too! It comes as a powder simply mix with water and apply like a liquid feed to the soil around the roots.  Once applied, the nematodes seek out the vine weevil grubs and invade them. They multiply inside the grub turning it brown and papery before it disintegrates.The nematodes are then released back into the soil to get rid of more grubs. Easy! Nemasys® Vine Weevil Killer is a perishable, living product, so it is sent out fresh by Royal Mail 1st class post. Being a perishable, living product, it must be used before the expiry date (which is marked on the inside of the pack and will be at least 2 weeks) and it must be stored in the fridge until it is needed. Once opened, the contents do not keep, so it must be used in one day - do NOT store the made up solution or powder. Nemasys® Vine Weevil Killer is delivered by 1st class post - 1 or 2 packs will go through your letterbox and should be popped in the fridge as soon as possible (they are fine on the doormat while you are at work).

Nemasys® Standard Pack treats 160 x 12" pots or 12 sqm 

Nemasys® Large Pack treats 100 sqm (eqivalent to 8 standard packs - once opened, it does not keep, so only order what you need) saving over £60.00 


"Can't praise your products enough, this nemasys stuff really works...had a bad problem with vine weevil a few years ago, but have been using your stuff each year and it really keeps it under control, not lost one plant since using it (fingers crossed it keeps that way)...only seen ONE adult so far and only one plant slightly nibbled." Linda


"I used to have so much damage from vine weevils to my ornamental plants. Since I found Green Gardener and used Nemasys I have no problems - I tell all my friends." Mrs G.


"Thanks for your help and for sorting out a vine weevil problem I've had for years on a bay tree which is now flourishing, thanks to your nematodes!" Mary Stow


"Nemasys - fantastic - the only control for vine weevil - 3 packs please!" Mr L.


"Thanks for sorting out a vine weevil problem I've had for years on a bay tree which is now flourishing, thanks to your nematodes!" Best wishes Mary Stow


How to apply? - Nemasys® Vine Weevil Killer is easy to use. Simply mix the harmless powder with water and apply to the soil around the plant roots with a watering can fitted with a rose (we reommend the Haws Rose) or a hose-end feeder. Concentrate on the rootball of the plants to increase the chances of vine weevil grubs coming into contact with the nematodes. Use the whole pack before the expiry date, which is marked on the inside of the pack and will be at least a couple of weeks.

Haws Rose no.14 Rose - Watering cans need to be fitted with a coarse rose. We recommend using the Haws Rose no.14, as not all roses are suitable.


Hose-end feeder - Used for applying large packs of nematodes. This feeder can also be used for applying liquid feed to plants and lawns. Attaches via standard hose-pipe connector and features both a rose head and jet spray as well as an on / off switch for water flow. 


Barrier Glue - Sticky barrier glue is one of the best ways to stop insect pests and is ideal for keeping vine weevil adults (which cannot fly and therefore crawl everywhere) out of pots, containers and even hanging baskets.


Barrier Glue - Protects trees and plants from crawling insects including ants by applying barrier glue around stems of plants or the trunks of trees. It can be applied around pots, table legs etc where it forms a barrier crawling insects cannot cross. It should be re-applied as necessary. It is ideal for protecting pots from vine weevil.  Use on trunks of trees to stop ants. Ants crawl up to 'milk' aphids for the honeydew that they produce and then protect the aphids from natural predators such as ladybirds and lacewing larvae. By stopping the ants you increase the effectiveness on these natural predators. Supplied as a twin pack with handy dispenser.


Soil Thermometer - Nematodes for slugs, vine weevil, leatherjackets and chafer grubs are all temperature dependant, so a soil thermometer is a valuable tool for any green gardener.


Soil Thermometer - Check that the soil temperatures are correct for the application of nematode control with this robust, easy to read soil thermometer. The large dial (3cm diameter) and the design (over 10 cm long) means the thermometer can easily be read in situ. This thermometer is also very useful to check compost temperatures during seed germination and propagation. Minimum soil temperatures recommended for nematode treatments as follows :- Nemasys Vine Weevil Killer 5°C, Nemaslug 5°C, Nemasys Chafer Grub Killer 12°C, Nemasys Leatherjacket Killer 10°C and No Ants 10°C.


"Hi Jon, I just wanted to thank you for saving my garden! Vine weevils nearly wiped out my garden two years ago. The restocking was not only expensive but there are many plants I still haven't been able to replace. After the restock I found vine weevil grubs in the soil again. Fortunately I found your website and started using the Nemasys. I'm pleased to say not a single plant has died since! I cant thank you enough, I'm really attached to all my plants and still feel sad when I think of some of my favourites that died! You have made me a very happy gardener! Thanks again." Caroline


"I am writing to you to thank you for a solution to my vine weevil problem that I have had for several years. They have been decimating my five Bay Trees and have caused havoc where ever they have crawled out of the ground. I can't tell you how happy I am this year as the NEMASYS I purchased from you truly worked. I have used four doses over the past twelve months and you can see from the images I sent you (see below), the remarkable results. 2010 was devastation and 2011 is a complete recovery of all my Bay trees. Thank you again and I will be back in a couple of months to protect again this autumn." Yours sincerely, Jonathan Harrison. (Chiswick)



Nematop Adult Vine Weevil Trap

Nematop Adult Vine Weevil Trap

Nematop Adult Vine Weevil Trap - Nemasys Vine Weevil Killer is effective at controlling the grubs but you can now use our our Nematop Adult Vine Weevil Trap to control the adults as well. As well as taking unsightly crescent-shaped notches out of leaves, adult vine weevils will attack more plants around your garden. Control adult vine weevils by placing Nematop Adult Vine Weevil Traps under your plants when the adults are active i.e. between June and September. Finished for this year - available again in 2018. 

Nematop Adult Vine Weevil Trap - Vine weevil adults appear in the late spring and will be active throughout the summer. They are nocturnal and feed by taking notches out of the edges of the leaf. During the day they hide away, so you may never actually see them and then during the night they lay eggs around the garden - up to 1500 eggs each! Positioning our Nematop Adult Vine Weevil Traps in the summer will reduce the number of adults, which will help to reduce the population of vine weevil in your garden and stop the damage to your plants.


Nematop Adult Vine Weevil Trap - Each trap consists of a specially designed wooden board, that has 3 grooves in it, which are filled with a gel containing 2.5 million nematodes (Steinernema carpocapsae), which attracts the adults. The boards are placed face down directly onto the ground beneath your plants and as they absorb water, the gel swells up and "oozes" out under the board creating a "cushion " of gel under the board in contact with the soil. The adult beetles will crawl into the grooves looking for a sheltered spot to hide in during the day. The nematodes in the gel will then infect the adult beetles and safely kill them without harming anything else - these traps are safe for children, pets and wildlife. Each trap will control adult beetles in a 10 sqm area or 4m of hedging and each trap is effective for approx 6 weeks. They are ideal for protecting hedges, patio gardens, raised beds or amongst your most vulnerable or valuable plants. Position Nematop Adult Vine Weevil Traps NOW while the adult vine weevils are active. Finished for this year - available again in 2018.