Abstract: To make it easier for millions of Americans to weed their lawns, the present inventor devised, among other things, a way to carrying a lawn care sprayer on a push mower and thus relieve the burden of carrying the sprayer and eliminates the expense of purchasing a riding mower and tow-behind sprayer. One exemplary embodiment includes a holster structure and a spray tank, with the holster structure attaching to the push rails of a push mower and the spray tank mounting removably to the holster structure. This arrangement provides easy and convenient access to the sprayer function as a user mows his or her lawn, eliminating the need to make kill weeds and mow as separate tasks. Moreover, some embodiments provide a dual chamber tank, which provides further efficiency by allowing users to choose between weed killers, or other lawn or garden treatments while mowing.