Grub Problem

Discussion in 'Organic Lawn Care' started by HazyDavy, Sep 20, 2004.

  1. HazyDavy

    HazyDavy LawnSite Member
    Posts: 102

    During my recent overseeding exercise I noticed quite a few grubs. I did put down Milky Spore in July, but that takes a while to work, and also only controls Japanese beetle grubs. Some of the grubs I've stumbled across don't appear to be Japanese beetle grubs. My question is, should I apply some sort of grub killer now, or wait until the spring? If the answer is to apply it now, what should I use that will be safe on my new grass, which is roughly about 3 inches high. I'll probably mow it for the 1st time either later this week, or next weekend.

    Thanks in advance for your help.
     
  2. Grassmechanic

    Grassmechanic LawnSite Silver Member
    Posts: 2,697

    You can use Merit, Mach II, or any other insecticide labeled for grubs. However, for good control, you'll need to ID which grub you're going after to time the insecticide with the grubs growth cycle. Insecticides should not affect the turf negatively.
     
  3. HazyDavy

    HazyDavy LawnSite Member
    Posts: 102

    Thanks for the info. One more question, are any of these insecticides harmful to the earthworm or beneficial microbe population?
     
  4. Hamons

    Hamons LawnSite Senior Member
    Posts: 706

    Grub control is very timely also. You can only use merit or mach2 during certain tiem periods. Right now you would need to use Dylox in my area to get control.

    - jeff
     
  5. Grassmechanic

    Grassmechanic LawnSite Silver Member
    Posts: 2,697

    Merit or Mach2 will not harm earthworms. Dylox, (an organophosphate) will kill earthworms.
     
  6. HazyDavy

    HazyDavy LawnSite Member
    Posts: 102

    Cool, thanks!
     
  7. Garden Panzer

    Garden Panzer Banned
    from Seattle
    Posts: 313

    i like to aerate and overseed grubs...
    ours emerge in the spring, though...
    :blob3:
     

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