Summer 2017 Update

25-Jul-2017
A Huge Leap Forward in Grub Control

New to North America last year, the Steinernema scarabaei nematode is being commercially produced and is available for purchase in 2017. This beneficial nematode is highly pathogenic to several white grub species and is much easier to store and apply than traditional entomopathogenic nematodes. Lawn Life is excited to announce that we have the exclusive rights to this product for the Canadian turfgrass market.

Reseach Shows Very Strong Results

Steinernema scarabaei was first discovered by Albrecht M. Koppenhofer at Rutgers Univerisity more than 15 years ago. Since that time many studies have been done and the research continues to show that Steinernema scarabaei offers 75-95+% control on third instar Japanese beetle, Oriental beetle and European chafer grubs. This is an exciting breakthrough for the turfgrass industry because it means we now have a viable, natural control for one of our most common turfgrass insect pests.

"Steinernema scarabaei has expectionally high virulence against a wide range of white grub species and is effective and persists very well in a wide range of soil types and soil moisture levels." - USGA

What makes scarabaei so much more effective on white grubs compared to previous nematode species is the fact that it is bigger and more aggressive, plus it is raised on a live host (Gaillardia moth), which makes it a healthier and stronger nematode.

Infection takes place 3-4 days after an application, with highest mortality coming 21 days after treatment. This nematode should be applied in August when larvae are young (first and second instars) for best results, but can be applied late summer and into the fall as well with the data indicating good control on third instar grubs.

What has limited scarabaei's commercial availability to date has been the inability to effectively mass produce this nematode. While the manufacturing process is still labour intensive, these challenges have been overcome and production commenced at our facility in Mono, Ontario last year.

Beneficial Nematodes Vs. Plant Parasitic Nematiodes

It is important to distinguish between plant parasitic nematodes - the harmful one's that can be destructive to turfgrass plants during stressful summer months and entomopathogenic nematodes - the beneficial nematodes that attack turfgrass pests such as white grubs. Healthy soils depend on beneficial nematodes to keep turfgrass predators at bay so that roots can flourish and continue to play a vital role in soil microbiology.

Summary

There is sure to be a large uptake of this product in lawn care given the challenges to date with previous nematode species. Steinernema scarabaei does not need to be refridgerated and can be applied even with larger, more mature grubs, so contact us today for a quote!


 

 

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