An applicator for introducing a fluid to a plant includes a first arm and a second arm pivotally connected to one another at one end. The other ends are spaced apart to receive the plant therein when the applicator is in a rest position and are driven together upon pivoting of the arms to place the applicator in an application position. A fluid injector is mounted on the first arm and includes an injector body and a diaphragm defining a plurality of channels. The diaphragm includes a pliable dome defining a reservoir to receive the fluid and a plurality of applicator nodes. A respective applicator node is positioned near a terminus of each channel. A driving member engages the pliable dome when the applicator is pivoted to the application position. The pliable dome is then compressed by the driving member to direct the fluid through the plurality of channels.