[kolbasz]

I want to make a new dedicated topic to the subject stemming from my mistake:

http://thelawnforum.com/viewtopic.php?f=9&t=870

I want to talk strategy, science, techniques, etc.

I will speak my specific grass type, but I am sure information applies all the same based on application rate.

50/50 KBG/Rye - 0.185-0.55 oz product per 1k sqft/calendar year (.5-1.5#/Acre)

With that said, the calculation is per time, which to me is completely different that fertilizer and fungicide app rates.

0.185 oz /k give protection for up to 4 months. Want longer, increase rate. 0.55oz/k provides 8 months of protection/control

This means more is not better, it is just longer. With the typical desire to control crabgrass and poa A, it means the lower app rate. If you want a spring and fall application, you need to go .27oz/k. If you want 3 treatments, then you are obviously going to go for the lowest dosage.

Otherwise, if you go max rate or more, you can totally screw yourself. This is why it is important to read the label (dont do what I did) and understand what it is saying, so that you can treat your lawn appropriately.

Applying 50% more than the annual calendar year calls for will cause anxiety and may do more harm than good (I am still waiting for the outcome).

 

[J_nick]

..... This is why it is important to read the label (dont do what I did) and understand what it is saying, so that you can treat your lawn appropriately.

I cannot stess enough how important reading the labels is and understanding it. Before I buy anything I will be spraying on the lawn I'll read the label a couple times. If there is anything I don't fully understand I'll send it to another forum member to clear things up. If you have any questions about what rates to apply don't be afraid to make a thread about it (they're free).

As said before read the label before buying to understand the chemical then the day of spraying read it again to familiarize yourself with it. I know I have a handful of different chemicals and all of them are different (rate, time of year, temperature restrictions, seeding restrictions).

 

[pennstater2005]

I went max dosage in May, actually beyond by mistake first 2k, which ended up being 3.3tsp per 1k. I'll probably half rate it next year and see how it goes. I have to source some Dimension now for my late fall app.

I prefer granular as spraying 15k was not pleasant but I definitely think I get better, more uniform coverage.

 

[kolbasz]

here is a question. With granular I am at the mercy of the product to water in and make a barrier.

with WDG, I spray, hopefully evenly, before being at the mercy of rain/water to get it on the ground to make the barrier.

How important is coverage with a WDG as compared to a granular? As long as you are close (not exact)and not super off, are you good?

 

[kolbasz]

Another question is about the shelf life. It is a granular product that I think activates in water. On the site I bought it, the Q&A says 3 years from purchase. How accurate is this if it is stored in my garage and not exposed to sun and water?

 

[j4c11]

I posted the article on pre-emergent effects on roots in your other thread. It appears that higher application rates have bigger effect as far as suppressing rhizome production and roots. So the big question for me right now is, would it be better to do 3 applications at the 3 month rate vs 1 application at the 9 month rate? The data would seem to indicate so.

 

[wardconnor]

Question

I'm spring 2017 I put down prodiamine wdg. I put down 1/3 of the yearly max planning on doing 3 apps in 2017. To date I gave only done the 1 app in the spring of 2017. If I put down the rest of the 2/3 yearly max in a few weeks can I only do a 1/3 app again in spring 2018?

This is with the assumption that its a rolling 365 days.