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White grub insect damage can be extremely devastating resulting in extensive turf loss and costly repairs. White grubs live in the soil and feed on the roots of the grass plant, causing death or intense stress that creates noticeable turf wilting. In many instances, damage to the lawn is severely compounded not only from the white grubs feeding on the grass roots, but from the animals such as raccoons, skunks, and birds that aggressively rip up, dig, and tear away at the surface of the lawn in an effort to feed on the white grub larvae themselves.
Timing the white grubs life cycle is very important to ensure effective control and results. The damaging life stage of the white grub life cycle is during its larvae stage when it actively feeds on the roots. Control applications are carefully timed and applied during the grubs most vulnerable life stage to ensure effective control.
The European Chafer, Japanese Beetle, and the May/June Beetle are the most common white grub species that affect lawns across Canada. White grub infestations can often go unnoticed if grub populations are minimal or if the lawn is healthy and robust enough to withstand and outgrow the potential damage. Visual damage of animals digging is often the first sign grubs are present.
Grub Control Options
At Nutri-Lawn we offer several effective control options for damaging white grubs. Be sure to contact your local Nutri-Lawn to learn more about the options available for use in your area.
Grub GONE!® is an all natural biological grub control that specially targets the most common destructive white grub species including European Chafer, Japanese Beetle, and May/June beetle. Broadcast applied as a granule, Grub GONE!® effectively eliminates grub infestations with the same efficacy results achieved by synthetic grub control products. The first of its kind, Bacillus thuringiensis galleriae (Btg) is a bio-insecticide that can be applied as a preventative treatment as well as a curative application to eliminate existing grub populations. Grub GONE!® is safe for non-target beneficial insects such as pollinators, aquatics, and birds.
Beneficial nematode applications are applied as a liquid spray to effectively reduce white grub infestations. Beneficial nematodes specially target the white grub larvae and infect them with a bacteria during its most sensitive early instar life stage resulting in ultimate death. Applications are timed just after grub larvae have hatched and feeding begins. Optimal timing occurs in early August throughout September depending on the grub species across most regions in Canada. Nematodes are sensitive to ultra violet light and dry environmental conditions so applications are done on rain days and during low light conditions to ensure best results. After care is very important in order to achieve maximum efficacy, the lawn soil must be kept moist for 10 days after the application so the nematode population can survive and eliminate the grub infestations.
Synthetic grub control is very effective at reducing and eliminating grub infestations. These products are extremely predictable and are minimally affected by environmental conditions unlike many of the natural alternative products. Synthetics are primarily used when grub infestations exceed acceptable threshold limits and damage caused by the grubs is most evident. Synthetic control products offer both preventative and curative measures, allowing for more flexibility in terms of application timing. Provincial regulations permit the use of synthetic products. Contact your local Nutri-Lawn to learn more about the options available for use in your area.