I've heard that there is a knock off product like Round-up at about half the price. I haven't heard what the name of it is though. Supposedly the pattent has expired and others are able to blend their own products to the Round-up specs. Don't know if it's true. . . just what I'd heard. If it's true it would help keep food plot expenses down some. So does anyone know the name of this new product?
Bob
I looked at side-by-side comparisons at TSC (Tractor Supply Company) a chain of stores based in Tenn. The knock-off was not that much cheaper. One of the interesting things about Round-up is that one gallon cost $79 and 2.5 gallons cost $98. The makers of Round-up are fighting for the market.
You can make Round-up go approximately 3 times farther if you pre-treat the water and supplement it with 2,4-d amine formulation.
There are commercial materials on the market for pre-treating the water. If you want to keep life simple, add approximately 1 heaping teaspoon of swimming pool pH reducer (sodium bisulphate) to each gallon of water...stir until dissolved. THEN add the Round-up and 2,4-d. A goodly squirt of dish soap will help the material wet-out to the leaves.
The sodium bisulphate does two things. One is that it reduces the pH (duh!), that is makes it more acid. The other is that the sulphate ions grab the ions that make water hard (calcium, iron, etc.). Grabbing calcium and iron means that those ions will not grab your expensive ag chemicals and make them ineffective. Citric acid is another good, if expensive option. Koolaid is a common (and very expensive) source of citric acid if you just want to spray a few weeds in the yard.
We also found that mowing the grass/weeds before spraying exposes fresh leaf ends and the herbicide really gets into the weeds and hammers them.
We found that we could mix Round-up at one-third strength (when supplemented with full strength 2,4-d) and still get good burn down. It does not happen overnight. It may take two weeks before stuff looks dead.
Key points:
-Treat the water BEFORE adding the ag chemicals
-Follow all the label recommendations (temperature, actively growing) except concentration.
-Supplement with 2,4-d...which is dirt cheap. Amine does not stink and will not kill the neighbor's grapevines and tomatoes. Ester formulation stinks terribly, wreaks havok on non-target plants but is a little "hotter" and less sensitive to water chemistry.
-Joe