[Slant7]

I was having a good year when all the sudden the lawn started dying. When I stubbed my foot in the grass and it pulled up like a bad hair piece, I noticed about 5 or 6 grubs in a very small space. I started to look around and saw the grass starting to wilt in several places so I simply pulled on the grass and it lifted with ease. Come to find out I have Grubs bad, from the Japanese Beetle I believe. I have ordered some Grub away. I put down some Diazanon a week ago. But they are still not dead. Any suggestion on this problem? I have read through the Scott's Lawn book but It does not really give a solution. I would hate to loose the whole lawn to these little pest.

Slant7

 

[bobbygedd]

diazonon wont do it. dilox will. then, wait a couple weeks to see how much of the lawn recovers, then (have a couple of big barrels ready) and powerseed

 

[Team Gopher]

Here are a few threads I found.

spraying grub control

Grub control

 

[mdb landscaping]

you know.......this is the first thread ive read regarding grubs this year. i dont know if its becasue its been so wet and cold here in the northeast this summer or what....but i havent seen one lawn killed or even been infected by grubs this year.

 

[Runner]

Diazonon has always worked for me. I would just spot treat it, since you're going to have to go back and do it again, regardless if you use Diazonon or Dialox. There are still plenty more to hatch, it's early, but they work fast! I used Merit in some of my props that were badly infested last year,- and so far - not grub 1. The stuff is just way pricey, though. As far as the Diazonon not working yet; Has it been watered in? It takes a week or so to astually get results fro Diazonon, as opposed to Dialox or Mach II.

 

[GLAN]

Dylox is the on the only chemical that will actualy penetrate thatch

If you are using diazinon the water needed would dilute it to nothing.

That is presuming there is thatch

Dylox will also give you a longer residual window than Diazinon.

Merit had to be applied 3 - 4 weeks before any occurence for control

 

[Slant7]

I have dethatched the grass layer at the beginning of the year and at the end of the year. I also core aerated at the beginning of the year, back in May.

Slant 7

 

[mtdman]

Originally posted by mdb landscaping
you know.......this is the first thread ive read regarding grubs this year. i dont know if its becasue its been so wet and cold here in the northeast this summer or what....but i havent seen one lawn killed or even been infected by grubs this year.

I've been wanting to ask this question. Grubs seem to be a real problem in drier, warmer seasons. I wonder if, because of all the water and cooler temps, the grubs just can't get a hold in the lawn? All the water drowns the larvae?

 

[GLAN]

Slant

I don't know what "Grab Away" is

I do know that Dylox will work fantastic for your problem. Follow the label at the higher rate.

 

[1grnlwn]

Originally posted by mtdmaster
I've been wanting to ask this question. Grubs seem to be a real problem in drier, warmer seasons. I wonder if, because of all the water and cooler temps, the grubs just can't get a hold in the lawn? All the water drowns the larvae?

Mtd. From my understanding the beatles/june or asian like to nest in a lush damp yard. (easy to dig) If we have a dry year they move to an irrigated spot. This would concentrate them on the damper locations and cause more of a problem. In a damp year they could nest anywhere therefore not concentrating and causing less damage.

 

[bobbygedd]

ill tell u this about merit. the lawns i treat in june/july, with merit, have NEVER had a grub problem. not even one grub, great product, but yes, very pricey. charge accordingly, and charge as a double app if its mixed with fert.

 

[KenH]

Originally posted by GLAN


Dylox will also give you a longer residual window than Diazinon.

I have to respectfully disagree with you here.

 

[bobbygedd]

o god, WHO CARES????? as long as it works, this isnt riocket science for gods sake.

 

[GLAN]

Originally posted by KenH
I have to respectfully disagree with you here.

OK

Did a quick search

From what I have just read it would appear that according to the wording for both Dylox and Diazinon. The residual if both are similar.

Both state that they are rapidly broken down into the environment

Went on further to state that Diazinon can move through the soil and contaminate ground water.

Now that I recall I was told in the summer that Diazinon is restricted to use on parcels under a certain amount of square footage.

Thanks Ken.............

 

[GroundKprs]

It may not be rocket science, but there is a lot of science about it if you care to take a look. This may not interest knee-jerk yard boy applicators, in the business for the $$$ and not much else.

Dylox is much more mobile than diazinon. Both must be watered into the soil to do their job on the grubs, and dylox is 30,000 times more soluble in water than diazinon (dylox solubility is 120,000 ppm, diazinon is 40 ppm). While this means the triclorfon is the easiest curative insecticide for grubs to deliver on target, this solubility can be a handicap, too. I have seen over irrigation wash the triclorfon application right down past the grubs, LOL.

 

[KenH]

Bobby, take this opportunity to learn something new.

According to Cornell, Dylox has a 1/2 life in the soil for 3 to 27 days. Diazinon 2 to 4 weeks. This is what I meant when I thought Diazinon has a longer residual.....although under perfect conditions both are the same. (See I learned something new too.)

 

[QuadRacer041]

Originally posted by mdb landscaping
you know.......this is the first thread ive read regarding grubs this year. i dont know if its becasue its been so wet and cold here in the northeast this summer or what....but i havent seen one lawn killed or even been infected by grubs this year.

same here i havetn seen any lawns around here with grub problems, i also attributted it the the wet summer as well.

 

[turf78]

Grubs 101

Grubs don't travel from lawn to lawn or areas within a lawn, they stay where the egg was laid. In fact, in the winter they may only move down 3 or 4 inches in the soil profile then come back up in the spring.

Grub damage shows up when it dries out because the turf is under stress. The grubs can go unnoticed under great growing condidtions, but they are still there.

Dylox is a fast kill compond so it is great for a curative application, also works better on larger (spring) grubs. Does not stay around more than a few days. Diazinon lasts longer, takes longer to work and needs more water than dylox. Oh and by the way diazinon will be gone in lawncare soon just as dursban did. If you like diazinon stock up.

The problem with failed grub kill is thatch or not enough irrigation to get the product to the target and of course misaplications.

Merit, Mach 2 and Dylox are the way to go for now.

Hope this helps.

 

[Slant7]

This has all helped tremendously!!
Thank you
Slant 7

 

[The Lawn Boy Pro]

Originally posted by Slant7
Grubs Grubs Grubs!

DUCKS DUCKS DUCKS! LOL