Grub treatment now

[jcb3030]

I have grubs every year.

At this time of the year do I put down a preventative or a curative treatment?

Located in NJ. Thanks.

[Green]

There are 4 main grub prevention active ingredients used today.

The first two are chemical insecticides: Chlorantraniliprole and Imidacloprid. They are used in tye first half of the season. It's too late now.

There are also two biological products...

The first being Milky Spore, but it's next to worthless in the Northeast because our Winters are too cold for the organism to survive.

The final one is Bacillus thuringiensis galleriae strain (Btg) bacterial bio-insecticide. This one can be applied in August or September. It works well. The downside is it costs more. But if you need or want to apply something at this point due to a history of issues, it's what I'd recommend.

Otherwise, you can apply Chlorantraniliprole next Spring (before June).

Good luck.

[jcb3030]

What about grub killers such as Dylox?

Can those be out down now or is it too early?

[ruth_mi]

Have you dug up a spot and looked for grubs (more than 5 - 10 per sq ft)? Dylox worked great for me, but I used it in September after digging and seeing a major infestation. July seems early.

[PSU4ME]

You can use 24 hour killer now, bayer has a product. Then next year get the preventative down around mid April

[Green]

Dylox is much more risky to the applicator than the preventative insecticides.