Treat Grubs this late in fall? (Maryland)

Gardening & Landscaping Asked by blak3r on October 24, 2021

I’ve read conflicting things about whether you should apply Grub control products in Fall. It’s likely insecticide companies trying to sell more insecticide. I’m sure the spring is a better time to prevent grubs. But, that’s not my situation.

It’s Mid-October you’ve invested a lot in a fall overseeding/watering… the cost of failure is high. You just found a Grub… Do you treat it or wait till spring?


  1. How long will grubs continue to eat my roots?
  2. Are the chemicals in Grub Ex going to have a long term negative effect on my soil?
  3. Besides the wasted $15 to cover my lawn, any reason to not
    do it.


I’m near Baltimore, MD. Tall Fescue.

Did an overseeding… have spent a small fortune on water the past month (have had no rain)… was carefully hand raking an area of my lawn where no grass seed was growing to give it one last try for the year and found a Grub. Honestly, I feel like i’ve used a lot of water… and the idea of putting more seed down in the spring potentially and having to repeat daily waterings again makes me sad.

So, I’d rather burn $15 now then use a lot of water in the spring to fill these spots.

One Answer

Grub ex is imidacloprid, a neonicotinoid. look it up on wikipedia. Very harsh on all insect life. Curl grubs have a layer of fat so the dose has to be high to affect them.

Pity the biological treatment (nematodes) is not cheap.

Answered by Polypipe Wrangler on October 24, 2021

Add your own answers!

Related Questions

What type of flower is this?

0  Asked on November 8, 2021 by vaishnavi-kamath


2 different broad leaf milky sap weeds in flower beds

1  Asked on November 5, 2021 by jay-harrison


New medinilla magnifica leaves curl and turn brown

0  Asked on November 5, 2021 by sijmen


Are my trees stressed?

0  Asked on October 25, 2021


How to best convert field into forest?

3  Asked on October 25, 2021


Discoloration of cactus: Fungi or Mite?

0  Asked on October 25, 2021 by greg-thrasher


How should I move on from my lawn?

4  Asked on October 24, 2021


Tomato wilt identification

0  Asked on October 24, 2021 by singerng


What is this bug on my Mint plant and is this harmful?

0  Asked on October 24, 2021 by rsa0809999


Front yard shrubs need a boost

1  Asked on October 24, 2021 by jeanette


Ask a Question

Get help from others!

© 2022 All rights reserved. Sites we Love: PCI Database, MenuIva, UKBizDB, Menu Kuliner, Sharing RPP