Green Circle Growers Blog

Fall Garden Tip: Apply Grub Control Now

Green Circle Growers - Thursday, September 03, 2009

When you take pride in your flower beds and lawn, nothing is more irritating than waking up to see the beautiful lawn you spent a summer perfecting peeled back in ugly, lumpy strips.

Beautiful summer lawnGrub Control Now Prevents Lawn and Bed Damage Later

In search of tasty white grubs, voracious raccoons, skunks, opossums and moles can wreak havoc, destroying large swaths of homeowners' lawns in a single night. While you sleep, these pesky critters are digging up your turf and adjoining flower beds in their quest for the fat, C-shaped, creamy white, brown-headed grubs that feed on turf grass roots.

The larval stage of a group of beetles called scarabs, white grubs are common in many regions of the U.S. where they eat organic matter, including plant roots. With a particular taste for grass roots, grubs can kill your lawn if not controlled. Because damage occurs underground, grub infestations may not be immediately evident. If you can roll back a section of turf like a rug, grubs are probably tunneling under your lawn. The first visible evidence of a grub infestation may come during August droughts when infested turf turns gray or brown and wilts rapidly under the hot sun. If a grub infestation is not treated, your lawn will begin to die.

Grubs require moist soil for eggs to hatch and young larvae to survive. They are most prolific in rainy years and thrive in well-watered, well-maintained turf. To control grubs to protect your lawn and adjoining flower beds from damage, in August apply a pesticide specifically formulated for grub control. Best results are achieved by mowing your grass before application to promote chemical contact with the soil/turf interface. Turf should be watered thoroughly the day before insecticide application and immediately afterward. Return grass clippings to your lawn for one or two mowings after application. Recheck lawn for grub infestation within 30 days and retreat if more than 6 grubs per square foot are found. Heavy grub concentrations may require a second application in late September and a preventative insecticide in the spring.

Preventative lawn grub control may keep critters like raccoons, skunks, and possums additionally from migrating into, and damaging your flower beds, to search for more food while they are there feasting on grubs in your grass.