Chemical applicator for a pet door

A liquid chemical applicator for a pet door, the pet door movable between an at rest position without any external force acting on the pet door, and a use position, where a pet provides a force against the pet door, the applicator comprising:

• a substantially wedge shaped body having a planar front and rear, sides therebetween and a base and wherein the sides are substantially triangular such that the planar front and rear converge at a top edge and are spaced apart at a lower opposite end thereof by the planar base so as to define a liquid chemical reservoir therebetween;
• and
• an adhesion means on a rear of the chemical applicator for adhering the chemical applicator
• to the pet door orientated with the top edge at the top thereof such that the applicator presents a ramped transition to the surface of the pet door above the chemical applicator when the applicator is applied to the pet door, wherein;
• the front comprises a lengthwise slit having a planar wick therethrough and therealong, the wick extending through the slit so as to define an interior portion for being soaked by the liquid chemical within the reservoir and an exterior chemical application portion, wherein, in use, as the pet brushes past the pet door the chemical application portion rubs across the hide of the pet applying the liquid chemical thereon;
• and
• when the liquid chemical is filled to a level adjacent a fill port of the liquid chemical reservoir, the slit is located above a surface level of the liquid chemical when the pet door is in the at rest position and the applicator is applied to the pet door.