has shown that the addition of ammonium sulfate to spray mixtures enhances herbicidal activity on a number of hard to kill broadleaf weeds fertilizers containing ammonium nitrogen have increased the effectiveness of the certain polar weak acid herbicides such as accent u2122 nicosulfuron banvel u2122 dicamba blazer u2122 acifluorfen sodium roundup u2122 glyphosate basagran u2122 bentazon poast u2122 sethoxydim pursuit u2122 imazethapyr and 2 4 d amine early fertilizer based adjuvants consisted of dry spray grade ammonium sulfate ams at 17 lbs per 100 gallons of spray volume 2 studies of these adjuvants has shown that roundup u2122 uptake was most pronounced when spray water contained relatively large quantities of certain hard water ions such as calcium sodium and magnesium it is thought that the ions in the fertilizer tied up the hard water ions thereby enhancing herbicidal action thus the words u201c agricultural adjuvant u201d when used in this specification and the appended claims means any material recognized by those skilled in the art of pesticides to be useful as an adjuvant material in connection with the formulation and or use of a pesticide and include all materials falling within the specific classes outlined above minor amounts of organic solvents may be used to increase the fluidity of the surfactant pyrethrin solution to ease the process of making the granules in one embodiment of the invention after preparing the solution of pyrethrin surfactant it is added to the biodac u00ae granules while tumbling the granules in a mixer it is important to evenly distribute the solution during this process so that each granule absorbs as close.