Frequently Asked Questions About Leatherjacket Nematodes
FAQ’s Leatherjacket Nematodes
What are leatherjacket nematodes?
Leatherjacket nematodes are microscopic worms that are used as a natural pest control solution for leatherjackets (the larvae of crane flies (daddy long legs). They are applied to the soil and target leatherjacket larvae, entering their bodies and releasing bacteria that kills them.
How do leatherjacket nematodes work?
The nematodes are watered onto the soil, where they actively seek out and infect leatherjacket larvae. Once inside the larvae, they release bacteria that kill the pest.
When is the best time to apply leatherjacket nematodes?
The optimal time to apply leatherjacket nematodes is from late spring to early autumn, when the leatherjackets are actively feeding. For the best results, apply them when the soil is moist.
How do I apply leatherjacket nematodes?
Leatherjacket nematodes come in powder form which should be mixed with water. Use a watering can with a rose with large holes, a nematode applicator or sprayer to evenly apply the solution over the affected areas. Ensure the soil is moist before applying and water thoroughly after to help the nematodes penetrate the soil.
How often should I apply leatherjacket nematodes?
One application of nematodes is usually sufficient, but if the infestation is severe, you may need to apply them twice once in late spring and again in early autumn. Regular monitoring of the lawn can help determine if additional applications are needed.
Can leatherjacket nematodes be used for other pests?
The nematodes are pest specific so cannot be used for other pests.
Are leatherjacket nematodes safe to use?
Yes, leatherjacket nematodes are completely safe to use. They are non-toxic to humans, pets, and wildlife and do not harm beneficial insects like bees or earthworms. They offer an eco-friendly alternative to chemical pesticides.
How long do leatherjacket nematodes take to work?
Leatherjacket nematodes typically start to kill the larvae within 48 hours of contact. However, it may take a few weeks for the full effects to become visible, as the nematodes continue to seek out and kill leatherjackets in the soil.
Do leatherjacket nematodes work in all types of soil?
Nematodes work best in moist, well-draining soil. They thrive in loamy or sandy soil, but may struggle in very dry or compacted soil. If the soil is too dry, ensure that you water the area thoroughly before and after applying nematodes to help them spread.
Can I use leatherjacket nematodes on my entire lawn?
Yes, you can apply leatherjacket nematodes to your entire lawn. They will target only the leatherjacket larvae,. However, be sure to apply them evenly to ensure all the affected areas are treated.
Do leatherjacket nematodes work in winter?
Leatherjacket nematodes are most effective when the leatherjackets are actively feeding, which typically occurs in the warmer months. They are less effective in winter when the larvae are dormant or inactive. Therefore, it’s best to apply nematodes during spring and autumn for maximum impact.
Can I use leatherjacket nematodes if I have pets or children?
Yes, leatherjacket nematodes are completely safe for pets and children. They are a natural product and are non-toxic, making them a great choice for families with pets or small children.
Can I apply leatherjacket nematodes if it’s raining?
While rain can help distribute the nematodes through the soil, heavy rain can also wash them away. It's best to apply them when light rain is expected or on a cool, damp day. After application, water the area thoroughly to ensure they reach the leatherjacket larvae.
How long will the effects of leatherjacket nematodes last?
The nematodes will continue to work in the soil usually until the leatherjacket larvae are controlled. After the nematodes complete their lifecycle, they die off, and their effect on the pests will end. However, if the leatherjackets are still active in the area, further applications may be necessary.
Where can I buy leatherjacket nematodes?
Leatherjacket nematodes can be purchased online from Gardening Naturally or slug-nematodes.co.uk