Why Should You Care About Grubs?

Why should you care about grubs? Well first question you may be asking yourself is what is a grub? Isn’t that something you use to fish with?

My answer would be a firm no; not this type of grub. This type of grub is what we call a white grub, and once they reach adulthood they can be Japanese Beetles, Oriental Beetles, Masked Chafers (you get where I’m going with this) and  you should care about grubs because the damage they do to your lawn can be costly!

Types of Grubs

Japanese Beetles and Masked Chafers (popular to our area) start out in life as grubs; grubs are small whitish half circle White Grubinsects that you will find in your soil. Once a grub hatches in early to mid August they begin to feed on the root zone of your lawn; once they begin to feed you may start to see parts of your lawn wilting or browning out in irregular shapes.

Summer rains attract grubs to your lawn and the moisture from all of the rain keeps their eggs hydrated (alive) long enough for them to turn into baby grubs. Baby grubs, just like any other newborn baby are very hungry and can quickly devastate a lawn.  In cases of dry weather where there isn’t a lot of rainfall, the grass will not be able to keep up with the damage caused by grubs and you will see the damage more readily (brown areas of grass).  When there is an overabundance of rainfall in the fall months and the grass is growing quicker; the grass is able to keep up with the feeding habits of the grubs, and you may not see the “brown” areas as you would in drier months.

What to Look For

Certainly there could be many reasons for lawns turning brown, especially  in late summer when most grub damage occurs. Always check the root zone of the affected areas for the white, c-shaped grubs. To check your lawn carefully pull back the sod in suspect areas; in particular the marginal areas where brown grass meets green grass, and look for the grubs. Usually a population of about 10 or more grubs per square foot will lead to browning out of your lawn.Grub Life Cycle

Another sign of grubs, is damage from skunks and raccoons digging up lawns in search of grubs to eat; this usually happens at night. Lawns can go from green and healthy to brown and sickly looking very quickly due the damage grubs can do. You’ll can start to notice the damage beginning in September. During years when we have a lot of rainfall in July and August, the damage can be worse.

Spring-time Damage?

In the Spring when your lawn is starting to wake up from the cold hand of winter, you may come across areas of grass that are brown and pull up all to easily. Many people mistake this for grub damage; when in fact it is due to poorly rooted grass. Lawns that have more shaded areas tend to have a  weak root system, due to the lack of sunlight. When your root system weakens any grass that you do have, can be easily pulled up giving the illusion of grub damage. However, once grass dies, regardless of the cause, the roots will rot away and the grass can tear out easily. So keep in mind that during the spring months if your lawn is having some of these issues it may not be due to grubs.

Prevention is Key

Damage caused by grubs can happen very quickly, and we strongly urge our customers to have a Preventative Grub Control put down in the Spring; helping to prevent damage from occurring in the fall.

Keep this in mind when May and June roll around;  and make sure to have a preventative grub control done so as to protect your lawn from damage in the fall!