Northern Turf guys out there who have run Tenacity as a pre for crabgrass, foxtail, etc. How long of a protection duration do you feel you have gotten out of a round of Tenacity? Is is similar to Dimension in holding power (3 mos give or take, depending on rainfall and weather conditions), or is it a bit better/worse?
DA Quality Lawn & YS
The residual so far as I know is six weeks max. Now I have to check the label again but it’s not super long.
I tried the fert/tenacity granular mix at the recommended rate on a couple of spring seeding jobs last year for the first time and was quite surprised and happy with the results. It did a much better job than Tupersan ever did. I followed up with an app of 3lb/m of .42% prodiamine in June to get me through the summer.
I recommend it.
I recommend it.
The tenacity/fert/starter mix is my go-to on any new seedings. Also, I have used this religiously for two straight years for eliminating bentgrass from yards. I get up to 4 weeks of white to dead on the treatments and do a follow up on my next round if needed. It's not cheap but the customers will gladly pay for the time and materials and easily see the results. I use an electric hand spreader to apply to the patches.
As far as using meso as a normal pre? No!
As far as using meso as a normal pre? No!
I'd like to know a bit more about doing split apps of prodiamine. I typically start the season with a pretty full dose and do a follow up on problem yards with dimension. When is your first app going down and what rate? I assume you double that rate on round 2. I have used both in granular combo products but my faith in catching small crab with a dimension granular is not huge.
When I do split apps, I apply 1/2 to 3/4 rate on the first app and then 1/4 to 1/2 rate on the second based on the over-all amount of control I want. Usually I am shooting for 5-6 month control when you look at the various rates needed.
Obviously the lawns condition will play a big part, but also irrigated lawns or if the lawn is cut short. Both of these factors we have some control over. Mother Nature plays by her own set of rules.
If I take over a lawn that had a CG problem before, I will do 2 apps the first year and then make a determination the following year. More often than not, I get away doing one heavy pre application using .42% prodiamine.
Obviously the lawns condition will play a big part, but also irrigated lawns or if the lawn is cut short. Both of these factors we have some control over. Mother Nature plays by her own set of rules.
If I take over a lawn that had a CG problem before, I will do 2 apps the first year and then make a determination the following year. More often than not, I get away doing one heavy pre application using .42% prodiamine.
I have also gone the route on trouble lawns, of doing a full round of Barricade 1st round, followed by a full dose of Dimension on the 2nd. Not keen on doing two 1/2 strength split apps though. A few hard rains and a wet spring and that approach is shot IMO.
If you get the timing down to within 6 weeks of the first pre, you are pretty good to go. You could also do a lighter app first followed by the heavier app on the second round.
I don't use much dimension other than in the late fall/early winter for Japanese Stiltgrass control.
I don't use much dimension other than in the late fall/early winter for Japanese Stiltgrass control.
If--you keep good records--and have data on the infestation level of crabgrass in the previous year--then you will know if the lawn needs extra heavy or if it needs the maximum allowed pre-emergent rate.
Give the lawn a crabgrass "Grade" A<B<C<D. (4,3,2,1.)
And give it a sector NSEW as where the problem is worst. This information can go in your computer, so next year you know what to do.
For instance, if the lawn scored a 1 on the west side. It would appear on the customer route card. Or the customer's route page on your computer.
Competing companies usually cannot match this.
Give the lawn a crabgrass "Grade" A<B<C<D. (4,3,2,1.)
And give it a sector NSEW as where the problem is worst. This information can go in your computer, so next year you know what to do.
For instance, if the lawn scored a 1 on the west side. It would appear on the customer route card. Or the customer's route page on your computer.
Competing companies usually cannot match this.
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