Hello,
We are currently experimenting here with some plant growth regulator. Last fall we applied a product called Stronghold, by PBI gordon inc. I believe is a product with primo in the mix, but i could be wrong. We applied late so we didn't get any really good results to talk about. This spring we are going to try a section again and see what happens.
If you go to the gordon site, they have good information on the product. We sampled a package that they market towards us for airports. It includes a gallon of the stronghold and 2 gallons of something called BK800. Bk800 is a broadleaf control, basically trimec. They want you to mix this in because most of the regulators are selective and do not work on any broadleaf weeds that may be in the area. If the area has weeds in it, they will still grow at normal rate.
As i remember, we paid something like 500 for the kit of 1 gallon stronghold and 2 gallons bk800. The kit said it would treat 8 acres, and it did. We hired someone and he charged us like 900 for the product and apllication. If you paid a 100 a quart for primo, that sounds expensive when considerering we got a gallon of stronghold and 2 gallons of Bk800 for 500. Im sure if we could buy it direct, it would be cheaper.
Like I said, we applied late, so we did not get great results. We did see some differece though. We did 2 strips in a field and left the center empty as a test. In about a week, we saw definite discolor in the sprayed area (a purplerlish tinge) About 3 weeks later, we noticed a slight diffence in grass heights. After that, it was too late in the season and the grass stopped growing to see anything else really work.
I just saw another product called Embark on gordons site and figured i mention this. It sounds good. I don't know if it is going into the stronghold mix or not, but will find out.
Well, thats all for me, but i am greatly interested in anything people have to say. this is all new to me and any comments are greatly appreciated, like how many apps a year should we expect to need and when?