Sportnem H Chafer Grub Killer (5000m2)
When ordering you will receive 10 x 250mllion sachets (each sachet covers 500m2). The whole pack will cover an area of 5000m2 (1/2 Hectare)
Sportnem H Chafer Grub Killer is a chafer grub treatment containing Heterorhabditis bacteriophora; a species of native entomopathogenic nematode (microscopic worms), which controls infestations of chafer grub larvae safely and effectively.
There is one application window in the pests life cycle suitable for applying a chafer grub treatment.
The application window is during the late summer/autumn, from the middle of August to the middle of October.
For more in depth information, please read the Integrated Management Strategies For Maximising The Efficacy Of Entomopathogenic Nematodes document.
The graphic below is designed to inform the user as to the life stage of the organism throughout the year


The mid August to mid-October application window coincides with the larvae being at a young and susceptible life stage and the soil temperature being above 14ºC, which is the minimum point the nematodes are at their most active in the soil.
Once soil temperatures rise again in the following spring the larvae will have grown to a stage where effective control of any type is significantly reduced. This means that a pro-active preventative approach to controlling chafer larvae in turf areas is required.
A pro-active preventative approach to controlling chafer grubs in turf is required. By treating with Sportnem H Chafer Grub Killer within the mid August to mid October application window, direct damage from the grubs and indirect damage from predators hunting for them in the following spring and summer is avoided.
The nematodes work in the soil by seeking out the chafer beetle larvae and attack the pest by entering natural body openings. Once inside, they release bacteria (Photorhabdus spp.) that stops the pest from feeding, quickly killing the grub.
The nematodes then reproduce inside the dead grub and release a new generation of infective juvenile nematodes. These infective juveniles then disperse into the soil and search for further prey. If sustained this life cycle can lead to significantly reduced chafer grub populations in subsequent years.
Sportnem H Chafer Grub Killer must be used within 3-4 weeks of being received, keep refrigerated until used.
Each pack of Sportnem H Chafer Grub Killer treats up to 500 m².
Preparing to Apply Nematodes | ||
![]() | ![]() | Order Order nematodes to arrive 1-2 weeks prior to forecast application period* to facilitate application in optimum circumstances. |
![]() | ![]() | Store Store in a refrigerator at a temperature between 2-6°C. |
![]() | ![]() | Monitor
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![]() | ![]() | Irrigate
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![]() | ![]() | Aerate Use a sarel roller to aerate the soil, facilitating faster movement of the nematodes through the soil profile.* * It is important that the nematodes come into contact with the soil as quickly as possible; excessive thatch will inhibit this process. |
Applying Nematodes | ||
![]() | ![]() | Equipment
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![]() | ![]() | Nematodes
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![]() | ![]() | Application
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![]() | ![]() | Post Application
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Nematodes are live organisms and need to be kept refrigerated until they are used. We take great care to ensure that they are handled in a manner which ensures they arrive in the appropriate condition:
- If Sportnem H is ordered by 09.00 hours on a Thursday, they will be delivered to you by the end of the following week.
We do not sell this product during the period when the larvae are not susceptible to control using nematodes.
To aid the efficiency of the nematodes into the soil profile, apply with Aquazorb 45 Wetting Agent.
For further information on Sportnem H Chafer Grub Killer, please contact a member of our technical sales team on 01 841 7399
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