Question: When is the best time to apply Nemaslug to protect my potatoes against slugs? The best results are obtained by applying Nemaslug 6 to 7 weeks before harvest. This is when the tubers are most vulnerable to slug attack.

When should I apply Nemaslug?

Question: When is the best time to apply Nemaslug to protect my potatoes against slugs? The best results are obtained by applying Nemaslug 6 to 7 weeks before harvest. This is when the tubers are most vulnerable to slug attack.

How long does it take for nematodes to kill slugs?

One application of Nemaslug will provide approx. 300,000 nematodes for every square metre of soil, giving at least six weeks control of slugs. This is generally enough time for seedlings and bedding plants to get well established. Slugs treated with Nemaslug will stop feeding in 3 days and die in about a week.

How do you mix Nemaslug?

Take one quarter of the pack contents and add to an 8 litre (2 gallon) watering can. Fill the can with fresh water and mix thoroughly. Apply the Nemaslug immediately (within 1 hour), using a course rose on the can to one quarter of the soil area to be treated.

How long does it take nematodes to work?

How fast do the nematodes work? Under optimum conditions, a nematode can kill an insect in 24-48 hours.

When should I apply nematodes to my lawn?

Nematodes are most effective when the soil temperature reaches about 15C. This is weather dependent year to year but it is usually around mid May. When you see them available in your local garden centers, it is the correct time to apply them, not before.

Can you use Nemaslug on grass?

Can I apply Nemaslug to my lawn? Yes, but water in afterwards to wash the nematodes through the thatch and into the soil. It can be a good idea to treat the lawn if you have left over Nemaslug, but other areas such as beds and borders should be treated as a priority.

How often should you apply nematodes?

It is best to make at least two applications, separated by 7-10 days in order to stagger the life cycles of the nematodes and to assure complete coverage. In cases of severe infestations, applications should be made every 7-10 days or until infestation subsides.

When should I add nematodes to my lawn?

Nematodes should be applied when light levels are low. They are light sensitive, so apply them in the very early morning or at dusk.

Can you apply too many nematodes?

Additionally, if you apply at high enough levels you can often get away with just one application per season rather than needing to reapply once some of the nematodes die off (depending on a number of factors including temperature, pest population and soil conditions).

Article first time published on

How do you know if nematodes are working?

Using a spade or shovel, turn up the ground where nematodes were applied, to check for dead larvae. Once you have seen dead larvae, this tells you that the nematodes are working.

How do I apply beneficial nematodes to my lawn?

APPLICATION: Beneficial Nematodes are very easy to use. Mix with water and spray or sprinkle on the soil along garden plants or lawn. Put the contents of the Beneficial nematodes in a bucket of water and stir to break up any lumps, and let the entire solution soak for a few minutes.

How do you get rid of slugs permanently?

  1. Get plants on side. …
  2. Remove shelter & encourage beneficial wildlife. …
  3. Make a beer trap. …
  4. Create a prickly barrier. …
  5. Create a slippery barrier. …
  6. Lay down copper tape. …
  7. Place a lure. …
  8. Apply nematodes to soil.

What is the best time to apply nematodes?

It’s a good idea to apply your nematodes during low light periods (morning or evening are best). It is very important that you mix and apply your nematodes quickly so they don’t ‘expire’ in the can. You want to insure the nematodes have a chance to get into the soil before the water is evaporated.

Are nematodes worth it?

Beneficial nematodes as pest control will attack soil borne insect pests with no harmful effects on earthworms, plants, animals, or humans, making it an environmentally friendly solution. … Beneficial nematodes have a lifecycle consisting of egg, four larval stages, and an adult stage.

What are the disadvantages of nematodes?

  • Nematodes are sensitive to environmental conditions, such as UV and high temperatures5; conditions that may be hard to control.
  • Nematodes may not be compatible with some chemical pesticides used to control other pests.

How long do nematodes last in the soil?

Beneficial Nematodes have a two month shelf life if refrigerated. However, they can live in the soil, at levels high enough to control pest insects, for around 18 months.

Can you drown nematodes?

Use suspended nematodes right away. They will eventually drown in the water. The suspended nematodes survive about three to four hours depending on temperature, oxygen in the water and some other factors.

Is Nemaslug safe for dogs?

Nemaslug is 100% biological, meaning it you can allow your dog to dig and play on treated areas immediately. It therefore offers dog owners a safe option for getting rid of slugs from their garden.

Is Nemaslug safe for hedgehogs?

Nemaslug controls all common species of small to medium sized slugs (up to 8cm – 2.5-3 inches). … Any slugs that do die on the surface or are eaten by birds or hedgehogs will do no harm.

Do nematodes hurt slugs?

Some nematodes are lethal to slugs and snails, and one species, Phasmarhabditis hermaphrodita, is being used successfully in Europe as a commercially available biological control agent (Nemaslug).

Why are nematodes bad?

Bad Nematodes Most nematodes are harmless, but a handful of troublesome species attack the outside surfaces of plants, burrowing into the plant tissue and causing root, stem, folar and even flower damage. … Plants injured by nematodes are also more susceptible to bacterial and fungal damage as well.

Can I apply nematodes in the rain?

Ideally apply during rainfall or irrigate prior and after application (except for foliage sprays as nematodes should remain on wet canopy for at least 2 hours after application). For soil applications, the soil should be moist and remain moist for at least 2 weeks after application.

What is the best time of year to treat for grubs?

Treating in late summer or early fall is ideal, as that is when the smaller, young grubs are most susceptible to nematodes. There is also usually a short window for application in early spring before the grubs get too big and pupate, but that is a narrower window and can be difficult to time properly.

How do nematodes work?

How do nematodes work? Nematodes work by infecting the host with a lethal bacteria. They enter via the digestive or respiratory system of the pest and stop that from working. This stops the pest from feeding within 48 hours and eventually kills the pest within a few days.

Should I cut grass before applying nematodes?

Prior to applying the nematodes: Cut the grass short before treatment. Soil should be between 10°C and 30°C during application and for at least two weeks after. Irrigate the area to be treated prior to application in order to apply the nematodes to a moist lawn.

Can you see nematodes in soil?

If critters creep you out, don’t worry. You can’t see the millions of nematodes in your soil without magnification. Luckily for gardeners, of the approximately 80,000 species of nematodes, only about 2,500 are parasitic. Of those, only some are parasitic and damaging to crop plants.

Can you fertilize after applying nematodes?

Because of its high nitrogen content, fertilizer can reduce nematode effectiveness. Manufacturers recommend that fertilizers not be used two weeks prior to and after nematode application.

Can I use nematodes in a vegetable garden?

With warmer weather and moist soils, fruit and vegetables should be growing well in the garden. … Apply the nematode solution as a drench to moist soil or as a spray as soon as the pest is spotted and repeat through the growing season as directed on the instructions.

Will fertilizer affect nematodes?

All fertilizers will affect Nematodes in some capacity. Fertilizers that contain high levels of nitrogen will weaken Nematodes and reduce their effectiveness. High nitrogen fertilizers make the ground inhospitable for Nematode growth and development for two weeks from the time of application.

Can you use milky spore and nematodes together?

If the infestation is large enough (>10 grubs per square foot), you can use beneficial nematodes and milky spore powder at the same time. The nematodes will give more immediate control while milky spore inoculation is spreading. … Nematodes may be the only natural option available to you.