Vine Weevil Control - Nematodes
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Description
Vine Weevils are a real double whammy for gardeners...the grubs or larvae eat the roots, and the adult eats the leaves!
Vine Weevil nematodes are watered into pots or open ground with a watering can or hose, killing the vine weevil grubs.
Use as soon as the soil temperature reaches 5°C. The parasitic nematodes enter the grub, poisoning it and then feeding off it to increase their numbers.
The damage from Vine Weevils is distinct from slug and snail damage as they bite the edge of the leaves rather than making holes in the middle.
Adult Vine Weevils are black beetles about 8mm long with the front part narrower than the back, so that they look as if they have a long nose, or snout. It is important to look for this feature, because otherwise they can be confused with ground beetles, which are a gardener's friend. If you see bitten edges around the leaves of your plants, then suspect vine weevil. To see them in numbers you will need to take a torch and go out at night-time into the garden and search among the leaves.
The adult feeds at night on leaves, making unsightly notches around the edges, hiding during the day. During the period from June to August you may still be plagued by the adult beetles. We sell a trap for the adults, more details on this Nematop Vine Weevil Trap
Some gardeners go out at night, and lay out a sheet underneath their most vulnerable shrubs or plants. Then they shake the shrub to tip the beetles onto the sheet, gather up the sheet, and dispose of the beetles. One tip is to sprinkle a thick layer of grit around plants at risk to deter egg-laying adults.
Vine Weevil Grubs
Eggs are laid near the plant stems in the summer and they hatch into white, horseshoe shaped grubs which stay in the ground during summer and autumn and winter and only emerge into adults the following year - typically early June. Vine Weevil larvae are ugly-looking grubs which feast on plant roots, often completely severing them from the upper stems. You can recognise them by their soft creamy-white body, up to 1.5 cm (half inch) long and their brown heads. They often lie in a sort of "C" shape.
Life Cycle: Adults typically emerge in June, start laying eggs in July through into the Autumn, but are typically killed by winter frosts. By that time the eggs have produced larvae (August) and these larvae feast on roots below ground until winter, when they dig in deep below the frosty soil, and hibernate until spring. As soon as the soil gets warmer (March-May), they start feeding again, and then pupate in May/June, to release a new set of egg-laying adults.
Sold in 2 sizes
Vine weevil nematodes come in packs of 12 or 100 square metres and should be used every 6 weeks from the spring into autumn.
When to treat - March, August - November
The two most important treatments are the first and last treatments in the season. March when they have emerged from their winter semi-hibernation and at the end of the season when they have just hatched out (August to November). Don’t treat in the depths of winter if the soil is below 5°C, and don’t treat at the height of summer when it is too hot and dry for the nematodes to be effective. For the adults use the traps between June and September when they are around in large numbers.
Biological controls are not always kept in stock, they are ordered in fresh. This can sometimes lead to a time lag between when you place the order and when it is despatched. Order by 10am Monday for same week despatch.
Delivery & Returns
Delivery:
Delivery to mainland UK is calculated at checkout. For all other areas and large orders please ask for a quote. Orders will be sent by express next day delivery (DPD). They will be dispatched on a next working day service, with the exception of Ireland where it may take two days. Please allow up to 48 hours for delivery in the UK as the couriers may have already been and collected on the day you send your order in. Smaller orders for pouches, pockets, bags and pots may be sent via Royal Mail delivery. Please ensure you supply an email address and a mobile so you can be updated about your delivery. Should you have any problems with your delivery, please contact us at sales@naturalgrower.co.uk.Special Deliveries
Saturday or weekday morning deliveries can be arranged, but there will be a surcharge. Please contact us to request a price for either of these delivery services. If you need a parcel sending outside of the UK, please contact us for a quote.Returns:
If you are not completely happy with any product that you have ordered from us, you may return it to us in its original condition any time within 14 calendar days from the date of dispatch. Products must be returned in their original condition. Please contact us at sales@naturalgrower.co.uk to arrange a return. If you return a product by post, you will need to pay the costs of returning the product to us and obtain proof of posting.
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