Was wondering if you would mind sharing how many oz/acre your using for the different herbicides, and if your using any crop oil with it as well?
SPRAYING CLOVER PLOTS I use Clethodim 2EC as my grass killer (also called Select), and I often use AMS in my tank mix to make the active ingredient more potent (always add the AMS to your water first before the herbicide) and have mostly had good results using a 25 gallon ATV sprayer, 13' boom nozzles, remember, the spray is only as good as the application, and Clethodim needs a more consistent application to work, a fog or fine mist on the entire leaf. Glyphosate is very forgiving, hit a plant with a drop of gly and it's dead. I generally spray 2 acres with one 25 gallon tank, depending how fast I drive, 4 to 7 mph according to how bad my weed problem is. Mix 25 gallons as follows; 64 oz spray grade AMS & 16 oz of crop oil per 25 gallons of water, then
add 6-16 oz Clethodim2EC (26.4%) per acre for grass control (Label Note: Do not exceed 16 fl. oz./A of CLETHODIM 2 EC HERBICIDE in a season on clover, if I have a grass problem I usually do 2 applications, 8oz. each). Certain Cleth labels say not to add the AMS tank mix for clover, you can skip the AMS and use 32oz. of crop oil instead per 25 gallons of water. If I have a lot of broadleaf weeds I will
add 4- 6 oz of Thunder (Pursuit/Slay) but at $270 a gallon I am starting to experiment with
2 quarts per acre of Butyrac 200 for broadleaf control in clover, it's only $23.75 a gallon, but there's different opinions about whether it's labeled for clover. Sometimes I will add 2 quarts per acre of AlfaPower MP micronutrient fertilizer to the tank mix as well. sometimes I will
add 11 oz. of glyphosate per acre for clover but I have burned clover in the past by adding to many things to one tank mix, if you do use gly it is best to apply it separately. Some guys will have a fit about using 11 oz. of Powermax on clover but it's on the label, and really works on some tough weeds that don't respond well to other herbicides.
Note; a lot of guys don't realize that herbicide labels recommend killing weeds at 1-3" tall. If you are trying to kill 2' tall weeds it's not going to work well. If your crop can be mowed, like clover for instance, mow the clover high then wait several weeks until new grass growth has just started emerging and spray with herbicide, this will get much better results than trying to spray something like mature cattails in seed heads already.
Also,
don't spray when it's too hot or cold, the plant leaves close their pores and you have poor results. Spray in the morning on hot summer days, preferrably when the leaves are moist from dew. Once the spray mixture has dried, plant leaves don't absorb any more active ingredient. Mid-summer it's harder to kill grass in clover than spring or early fall.