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View Full Version : merit, on august 28th?


bobbygedd
06-27-2003, 12:44 AM
i was just trashing some old paperwork and came across something from when i used to sub out chemical programs. the chemical company treated my clients for grubs, using merit, on august 28th. ive been doing my own for a while now, and that treatment on aug 28th seems very, very wrong. what do you think?

EJK2352
06-27-2003, 01:25 AM
Did that client have an irrigation system ????????

bobbygedd
06-27-2003, 08:30 AM
he did 10 of my clients on that date. some had irrigation, some did not. i am more concerned about his choice of product and his timing.

Runner
06-27-2003, 11:17 AM
About 2 months late, I think. Here, we need to be putting it down now, so it is in the soil and ready. This will give us protection through the end of September.

rob1325
06-27-2003, 06:43 PM
Here in Connecticut, before Aug 15.

grassguy_
06-27-2003, 09:29 PM
Seems a little late, better to use Dylox by that time of year. Not that Merit won't control some other insect issues then, and even the late grubs like Oriental beetle grub, but quick knockdown is usually the rule by that time.

Turfdude
06-27-2003, 09:44 PM
Bobby,

I think that Mach 2 will work at that late a date. Otherwise, use dylox or oftanol.

bobbygedd
06-28-2003, 12:47 AM
yes, thats what we use at that time of year. dilox or mach. we use merit in june as a "control" treatment, to kill eggs b 4 they hatch, and dilox or mach as a "kill" method later in the season. i couldnt believe that this big chemical company was using merit so late. it seems to me, the merit wouldnt do anything at that point. dont u agree?

EJK2352
06-28-2003, 01:23 AM
bobbygedd,
Merit kills the egg's of bettles?????

bobbygedd
07-03-2003, 08:03 PM
yup

EJK2352
07-04-2003, 03:20 PM
Really???? I think not!!!

bobbygedd
07-04-2003, 11:38 PM
then tell me, what does merit do?

kickin sum grass
07-04-2003, 11:46 PM
merit kills grubs in the first or second instar. Not the eggs.

EJK2352
07-05-2003, 12:07 AM
The grubs hatch and ingest the Merit. The Merit stops them from feeding. They don't eat and thus they die!!! So bobbygedd what is Mach 2's mode of action???

ChickensDoo
07-05-2003, 10:46 AM
Merit is actually a systemic insect control. The grass plants actually take the product in through the roots. The grubs feed on the roots and *poof*, bye-bye grubs. Merit is a preventer and must be applied prior to egg hatch for optimal results. August 28th, I would think, its too late for control.

Dylox would be a great choice of controls on August 28th. Dylox moves through the thatch and soil fast. You get quick knock down of any grubs present.

Mach 2 can be used preventively or curatively. Its a insect growth regulator, rather than a poison. The product is ingested by the grubs, causing them to start molting into a pupal stage, where they do not feed, and starve to death.

EJK2352
07-05-2003, 07:28 PM
chickendoodoo my question was for bobbygedd but you answered it, and correctly I must add. Mach 2 accelerates the molting process causing them to molt before their suppose to. They shed their skin and die.

KenH
07-05-2003, 08:33 PM
Does anyone know the residual activity of Dylox?? I know it is pretty short.

bobbygedd
07-06-2003, 10:20 AM
well, i want to thank u fellas for the education. i was definitely correct on the timing of merit, it had to be applied before hatching. thats when we apply it, early to mid june. and as far as the mach, i knew that it somehow interupted the aging proccess after hatching. u guys seem to know every detail, which is good. i know basics, which is more than most, and our programs are always succesful. good info guys, thank you

Ric
07-06-2003, 03:53 PM
Originally posted by KenH
Does anyone know the residual activity of Dylox?? I know it is pretty short.


Good Question not so easy an answer. Depends on soil, Longer on Clay shorter on Sand. High pH kills Dyloxs effect. Bottom line there is no residual to speak of here on Florida coastal calcareous sand. In fact it must be watered in very deep right away to have any effect at all.

ChickensDoo
07-07-2003, 12:24 AM
Originally posted by EJK2352
chickendoodoo my question was for bobbygedd but you answered it, and correctly I must add. Mach 2 accelerates the molting process causing them to molt before their suppose to. They shed their skin and die. Sorry, I didn't mean to step on anyone's toes. I have been dealing with chemicals and fertilizers for a while, so I thought I would put in my 2 cents.....

EJK2352
07-07-2003, 05:42 PM
Originally posted by ChickensDoo
Sorry, I didn't mean to step on anyone's toes. I have been dealing with chemicals and fertilizers for a while, so I thought I would put in my 2 cents.....

No problem!! I was just hoping to get an answer from bobbygedd.

bobbygedd
07-08-2003, 01:01 PM
and why did u want an answer from me? but, was i right, kinda, anyhow?

EJK2352
07-08-2003, 07:54 PM
I guess you were kinda sorta right.

bobbygedd
07-09-2003, 01:38 PM
i usually am

grassguy_
07-13-2003, 02:33 PM
Its my understanding from Bayer that Dylox has only about a 48 hours residual besdies having to be immediately watered in. Guess they only manufacture the product for shor periods of time becuase the shelf -life of the product in the bag is short as well.

ChickensDoo
07-14-2003, 06:32 PM
Originally posted by grassguy_
Its my understanding from Bayer that Dylox has only about a 48 hours residual besdies having to be immediately watered in. Guess they only manufacture the product for shor periods of time becuase the shelf -life of the product in the bag is short as well. Right, grassguy. Dylox should be used as a curative treatment only. The product moves quickly through thatch and soil, making it a great product for a quick kill. But, because of this property, don't expect any kind of residual. Use as curative only....