round up

[wheelhorse]

I got a litre of round up from a farmer it is very concentrated he was unable to tell me a mix
Can anyone tell me how many ml. per gallon? I usually use about a gallon a year to do a fence line and around a few trees thanks in advance

[unioncreek]

I mix it at 2% when using a backpack sprayer or do spot spraying. That's a little on the heavy side, but it does a good job.

Bobg

[agmantoo]

I use 32 oz per 20 gallon of water. I also use a surfactant at the same rate. It is important to have a surfactant which will essentially make you enhanced roundup.

[Selena]

You can check monsanto's website as there are different 'flavors' of the product these days.

[Jolly]

For small lots, the old Round-up was mixed at about 3 to 4 tablespoons per gallon of water.

But yes, there are newer versions on the market, so consulting Monsanto's website is good advice....but....most farmers down here now use the generics, which is the old formula.

A note about Round-up strength...you want the herbicide to get down to the roots and kill the whole grass or weed. You can mix Round-up too strong, and render it less effective.

[farminghandyman]

If it is field strength 16 to 20 oz per acre, I believe that is the rate my in-laws use on there fields,

1 acre equals 43560 square feet.
so basically an 1 oz for 2500 to 3000 square feet, so it depends on how much water it take you to use to spray that much area,

[rambler]

A quart per acre does a real nice job. Your litre would cover about 2 acres or so. I hear of people using as little as 16 oz, up to a 3 quarts per acre, so it isn't real fussy....

Some mixes come with a surfacant built in, some do not. Basically soap - crop oil. Doesn't hurt to add if you don't know.....

Glysophate is less effective in hard water. To take care of that, use distilled water, or add AMS to the water, about 2-3# per 10 gallons of water. AMS is a special nitrogen fertilizer......

--->Paul

[PD-Riverman]

I use 1 ounce per gallon--it is a slow weed/grass kill but it works good. If I have small brush I need to kill. I mix 3 oz per gallon------And I am talking about the round-up like farmers use on their round-up corn. I like to use a squeeze of dish detergent with the mix to help it stick on the plant/brush/weed/grass.