2,4-d and bermuda tiff419

gobblerhuntr – posted 26 March 2003 13:50

I am going to spray the yard with 2,4-d and it says to put 2 pints to one acre. I have a atv spray rig (25 gal), wondering what mixture of 2,4-d/gal I need to use for about a 3/4 acre yard. I have zoysia grass that lines all the concrete at my house and bermuda everywhere else, this won’t hurt the zoysia will it? I live in western Tenn.

seed – posted 28 March 2003 17:46

gobblehuntr, first you absolutely must find out what your sprayer puts out, e.g., gallons per acre. Two ways:

(1) run out a full tank or a measured fraction of a tank with plain water, and divide that by the area. For example, say you pour 5 gallons of water in the tank, and run back and forth five times over a 100-foot course until your tank is empty, except you run short 50 feet before the end of the fifth run. Let’s say your 8-foot boom has five nozzles, 2-feet apart. That’s an effective 10-foot boom because we have to consider the overreach to the next swath. Your spray rate is 5 gallons X (43560 sq ft/acre) / 10-foot width / 450-foot total spayed . . . that works to 48.4 gallons per acre (5 X 43560)/10/450 gallons per acre.

alternatively,

(2) run the stationary boom with plain water for 30 seconds, and measure the water coming from each nozzle. Find your ground speed, let’s say 2 miles per hour, and use the 2 feet between nozzles from before. Let’s say 12 ounces comes from the nozzles, on average, in 30 seconds.Your spray rate is (12 ounces/2 feet width nozzle/30 seconds) X (1 gallon/128 ounces) X (3600 seconds/hour) X (mile/5280 ft) X (43560 sq ft/acre) = 46.4 gallons per acre.

If you get this far, the rest should be a cakewalk.

Make sure your 2,4-D is labeled for zoysia (most are) also remember that it’s probably a mixture of other ingredients.

Phil

ted – posted 29 March 2003 21:17

yeah, you’ve got to calibrate first! also where are you getting the 2 4 d? you will have to read the label as to the rate per 1000 sq ft, then do a test area with your atv sprayer to see how much water your atv puts out on that 1000 sq ft section, then mix accordingly. why don’t you just call a local lawn care company? lots around you!

frenchman – posted 29 March 2003 23:50

Ted, why should he call a lawn care company, if he’s willing to do it himself. That is how you learn. There nothing better than to say that you did this yourself. Meaning I’m the one who makes my yard look good.

gobblerhuntr – posted 01 April 2003 11:33

Thanks for the responses. I will test spray with water to find out and then once the wind dies down spray the yard. I have a bunch of green onions in the yard, is this the product I need to use to get rid of them as well as other weeds or do I need to use something else. I sodded with bermuda so I would have to mow until late may or june and I am mowing green onions in mar and april.

gobblerhuntr – posted 01 April 2003 11:38

another ? Will it hurt to spray the 2,4-d with the zoysia and bermuda coming out of dormacy?

ted – posted 07 April 2003 17:37

yes. you have an issue with the grasses coming out of dormancy, albeit it a minor one. you need to mark off a 1000 sq. ft. section on your driveway or whatever and see how much water you put out first. then you can measure how much 24d to put in. yes this product will get your onions. and you answer the previous response, since you’ve got 30,000 sq. ft. of grass, it would be a good idea to make sure this products are applied correctly! i guarantee you, by the time you go to the store, buy the 1/2 strength stuff, and put it down, you would have saved money by having a chemical lawn care company do it. I don’t think you want to “learn” how to do it with the kind of investment you’ve made in this lawn.

George777 – posted 19 April 2003 19:40

Mark off 1,000 sft fill tank with water walk and spray entire area, time this to see your time. Do this tree times and get the average. Get a 5 gal bucket and spray in the bucket for the time it took you to spray the 1,000 sf2. Now you have your rate. Read label to detemine pressure. Most herb good about 30-50 psi. I just put out 2,4,d at 1 0z per 1,000 sf2.I treated 30,000 sf2my rate is 1.5

I need 30 oz of product and 1.5 X 30.0= 45 gal of H20

If the lawn is not infested I would spot treat with a pack pack sprayer. You will get the same resualts with less hassle. 2,4,D is a post emergent and so it only works on weeds you see.