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Grubs

Grubs are the larva of many different species of beetles. Fully grown adults are 1/2 to 3/4 inches long, white to grayish, with brown heads and six distinct legs. They usuallly assume a C-shaped position in the soil. Severe infestations feeding in the soil-thatch interface of turf can destroy most of the roots, causing the turf to turn brown and die. Most grub damage, in our area occurs between mid August and late October to early November. Birds, raccoons, and skunks actively feed on grubs and in the process tear up the turf as they search for them. The sure way to detect white grubs is to cut into the turf in several locations and examine the root zone and first three inches of soil carefully. Turf can support some grub populations without sustaining damage. The goal of grub control is to keep grubs below damaging levels. NO grub control will ever obtain 100% control, and 100% control is not needed to prevent grub damage to lawns.

*We guarantee grub control, (below damaging levels), with our preventative grub control application. If grubs are found in damaging numbers after application of our preventative grub control, we will re-treat with a curative grub control at no additional charge. We recommend all lawns be treated with our preventative grub control. There are two programs of grub control:

1. Preventative - We apply our preventative grub control sometime between late April and early June. When we apply our preventative grub control at this time of year, we also get control of bluegrass billbug larvae (a frequent cause of lawn damage), and obtain suppression of chinch bugs. We apply our preventative grub control at the highest label rate which allows it to stay in the soil until grubs hatch in August, and we still obtain excellent grub control. Some lawn care companies apply their preventative grub control, at lower rates, later in the year and still achieve good grub control, but do not get control of the bluegrass billbug larvae.

2. Curative - If a customer has not elected to receive our preventative grub control and we notify them of grub populations in damaging numbers, we can apply our curative grub control to reduce the grub population below damaging numbers. Curative grub control must be watered in after application or it will not work. It is the customers obligation to make sure that enough water, (approximately 1 inch per lawn area), is applied to move the grub control from the surface, down to where the grubs are feeding. Watering should begin immediately after the curative grub control is applied. We do not guarantee our curative grub control, as we can not control the watering. However, if watered properly, it will work.

3. Grub contols applied to lawns will not control adult beetles feeding on trees and shrubs, since the adult beetles can fly from neighboring areas.

4. Controlling grubs in your lawn will not control Moles. The favorite food of moles is earthworms, not grubs. The only way to control moles is through the use of traps, which can be purchased at local garden centers or hardware stores.

5. Please call our office for pricing or addiional questions about grub control.

Ref. - Destructive Turf Insects, Second Edtion
Harry D. Niemczyk, Ph.D., and David J. Shetlar, Ph.D.

 

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330-856-1756
Monday-Friday 8:30-4:30

 


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