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White Grubs in Your Lawn? How to Fix Lawn Damage From Grubs

This kind of damage in spring is the end result of hungry insects attacking lawns in the previous fall, and then raccoons and skunks digging up the lawn to look for them and eat them.  Preventative grub control treatment and good lawn care practices can minimize the risk of this happening to you.

grub

Grub damaged lawn

What does your lawn look like when you have Grub damage?

In the fall many Toronto and GTA lawns become prey to root-eating insects called white grubs. The targeted turf fades in colour as fall progresses and the injured roots cannot absorb nutrients or water properly.

The damaged areas begin to feel soft and spongy underfoot and pull out easily (like carpet) because the cut roots can no longer hold the grass plants to the soil.


Cafer larve in Toronto

European Chafer grub

What do white grubs look like?

White grubs are the larva, or young, of several kinds of beetles. The European Chafer (Rhizotrogus majalis) and Japanese Beetle (Popillia japonica) are two of the most common.

The adults breed through the early Summer and lay eggs in your lawn, which hatch in mid- to late-August and begin to feed.


hand holding a grub

Grub damaged grass – as loose as carpet

Will grub damage get worse?

In the spring when food is scarce, scavenging animals like raccoons and skunks find grubs an easy source of nutrition. Since the grubs have eaten the roots, it is easy for the animals to roll your grass back like new sod, causing it even more damage.

Even if you do not have many grubs in your lawn, these animals often dig in places they remember finding food before.  Squirrels sometimes cause small fist sized dug up areas, however are rarely the cause of a ripped up lawn as they are mainly herbivores and will only eat insects if starved (which rarely happens with all the buds and seeds available in the spring)


How do I get rid of white grubs in my lawn?

Proactive Preventive care works best!

All lawns have some grubs. Damage happens if a lawn is weak, or the number of grubs is very high (more than five to ten per square foot on an average lawn). Watering for an hour and a half to two hours once a week and having your lawn professionally fertilized will make your grass grow deeper, stronger roots and regenerate injured roots faster.  It will also increase your lawn’s tolerance level for grubs.

As well, LawnSavers can apply a natural control called predatory nematodes to your lawn starting around early September. These microscopic creatures are applied in the hundreds of millions and swim through moist soils and attack the grubs.

Digging animals can be deterred in many ways, from fencing to smells they don’t like. Many of our clients have told us they are having good luck with motion-activated sprinklers, such as the ‘Scarecrow’.

These techniques will minimize damage from white grubs. Nature being unpredictable, some may still occur, especially since skunks and raccoons are creatures of habit.  Animals digging is a clue that you might have grubs, but not definitive proof as squirrels and other animals can scavenge and dig for reasons other than finding grubs.

Repair

If grub damage has occurred despite your best efforts, immediate repair is needed to prevent further problems later. Rake out any loose, dead grass and have your lawn care company do a core aeration and over seeding with proper  species of grass. If animals have flipped up to grass when digging, don’t despair. Wet the flipped turf to soften it and roll it back into place – if your grass is generally healthy there is a good chance that if it is cared for it will re-root, just like sod.

FAQ About Best Lawn Care Practices

🌱 How Many Times a Week Should You Water Your Lawn?

You need to water at least once a week for at least an hour, this generally provides 1-1.5″ of water to the roots (a tuna cans height) (exceptions: 1. when you seed &  2. if you have an automated system 3. When we are experiencing extreme heat).
New Seeding Watering: Seed must be kept moist until established.  This will be influenced by the amount of sun, wind and heat you are experiencing in your particular area.  It is normal to require 3-4 short waterings per day to maintain a moist seedbed.  Use a light stream of water to lessen disturbance of the seedbed.

🌱 What is Aeration?

Natural aeration is the process of air exchange between the soil and its surrounding atmosphere. Sometimes this process needs a little help, and that is where liquid aeration, the process of either applying a blend of soil enhancing materials OR mechanically removing small plugs of thatch and soil from the lawn, is used to improve soil aeration.

🌱 How Do You Care For A Newly Sodded Lawn?

For a newly sodded lawn, it is very important to make sure you water your lawn every morning and night for the first two weeks, make sure you mow it at your mower’s highest setting and limit traffic to keep the lawn from getting lumpy.

Additional Tips: See this article to see how short you should cut your grass before winter.

Check out what Barbara had to say about her grub service on Google:

“LawnSavers was recommended by neighbours when I first noticed turf repeatedly dig up by skunks searching for the scrumptious grubs I was encouraging to take up residence in my lawn! LawnSavers took care of it promptly and successfully. For years I have been hand-weeding but not fertilizing and scorned chemical treatments but was so impressed by all interactions with Lawnsavers & their technicians that I have signed up for their Protection service for the past few years and my lawn has improved and never looked better! Now that it looks great and grubs are gone I just need to discourage the neighbourhood dogs from decorating my lawn – but there’s no help for that!”

Rating: 5/5 ⭐⭐⭐⭐⭐

Date: 2018-02-28

 

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  • Coping with Covid Update: (updated 11/05/20)

    Hi Everyone, 

    I’m happy to share some good news during these crazy times. LawnSavers managed to persevere through this crazy pandemic season with the loyal partnership of our clients.

    We were able to service lawns and perform pest control services in all our service areas,  officially on the Provincial list of essential services due to our ability to provide service safely and with no personal contact!

    We will all be happy to put 2020 behind us.  Together with our customers, we faced Covid-19 head-on as a community-minded local small family business and are extremely grateful to be able to survive and keep all of our loyal employees working hard with us through it all.

    In addition, 2020 through everything bad it could at us.

    • Nine days of snow, ice and wintry weather in May.
    • One of the hottest driest summers on record with long spells of grass-killing heat and drought. Read more here in our 2020 summary blog.
    • A bumper crop of crabgrass that germinated in the perfect (rainless) storm.
    • Chinch Bug numbers were record breaking and persisted through the dry heat they love, secretly killing lawns while dormant! We can help with Chinch bug damage
    • We put together an easy to read lawn care service timeline that you can use to know when to expect us for each scheduled service in your package. 

    I want to reassure you that in every decision we make around COVID-19, our number one priority remains the health and safety of our employees and customers.  Safety, Integrity and honesty are our most important core values.  We will continue to follow strict safety guidelines that ensure “zero touch”.  We will not let our guard down on exercising our safety protocols!

    Our office remains open in addition to some remote staff.   Please note our office may be experiencing a higher volume of calls.  We know how much everyone hates being left on hold, so please leave us a message or email us at greatservice@lawnsavers.com and we will get back to you in less than 24 hours.  (texting coming soon)
    Please be patient with us, we will get back to you as fast as possible.
    You can also sign up for services on our website by clicking here.

    Thank you all for your understanding and patience during these challenging times. Our team works hard, so if you are met with our exceptional service from our technicians or office team members- please give them a thumbs up to make them smile or let me know through a quick email to feedback@lawnsavers.com

    We thank you for supporting our local, family-owned business of 30 years.
    We
     genuinely appreciate each and every one of you and promise that we will do our part to ensure our mutual safety and look forward to be back on your lawn as soon as possible again in 2021.

    Thank you in advance,
    Kyle Tobin
    Chief Environmental Officer