Which one of the following methods were the most successful for you?








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Purpose
HowtoKillGrubs.com is a web site dedicated to the gathering and sharing of information on grubs and grub control methods.
 
The site is new so expected content to be added at least every couple of weeks - so please check back.for updated content.  
 

Problem

  • White grubs may be the most damaging turf insect pests in the United States.

  • Japanese beetle grubs are estimated to cause $234 million in damage annually including $78 million for pest control and $156 million in costs for turf grass replacement (Source U.S. Department of Agriculture).

  • The above costs do not even include the time of many proud lawn owners who constantly fight grubs, often times not even knowing it, spending countless hours and resources watering, fertilizing, re-seeding, attempting to bring infected lawns back to life.

 

Signs you may have grubs?
  • Large patches of dying grass
  • Large clumps of grass can be lifted up or rolled up easily 
  • Skunks or raccoons digging in lawn
  • Crows or flocks of birds pecking in lawn more than normal
  • To know for sure, dig up a square foot and examine the roots for grubs

I have grubs, how many is too many?
  • First realize that in many areas/conditions it is expected to have some grubs.
  • Other than the obvious issue of your lawn being ruined, the consensus seems to be more the 10 grubs per square foot signals that something probably needs to be done.  
 
Know Your Enemy!
The first step in fighting your enemy is knowing them.    Find out all about grubs on the The Enemy tab.
 
How To Kill Grubs
There are two basic types of treatments, organic and chemcial.  Organic treatments are preffered wherever possible.  Chemical treatments should only be used as a last resort and only after consulting with a certifed local expert familiar with local laws and regulations and can recomend a certifed treatment proffessional.
  1. Organic

  • Keep lawn healthy as possible with organic/best lawn care practices

  • Milky Spore

  • Change mix of grass

  • Nematodes

  • Neem oil
  • Insect dust (diatomaceous earth) mixed with soap powder

  • ​​Dish detergent
  • Mechanical cultivation methods (stabbing/squashing them) - Seems to be of a limited benefit
  1. Chemical treatments
  • Imidacloprid.  Examples:  Merit, Grubex, Bayer Advanced Season-Long Grub Control

  • Chlorantraniliprole.  Examples:  Scotts Grubex

  • Trichlorfon.  Examples:  Dylox, Bayer Advanced 24 hr Grub Killer Plus
  • Halofenozide.  Examples:  Mach 2, Grub-B-Gon

In the near future, I hope to provide information on which of the above treatments seems to be working the best.