Insecticide strip and combination with identification ear tag

An insecticide strip for attachment to an animal ear tag comprising a male tag component having a substantially cylindrical post for extending through the ear of the animal and a female tag component having an upper attachment portion configured to lockably engage the male tag component and a lower panel portion, the insecticide strip comprising:

• an elongated plastic member containing an insecticide compound, and having an upper portion and a lower portion defining an axis, wherein the upper portion of said member has formed therein an aperture having a substantially circular portion and a slit portion extending from said circular portion, wherein said plastic member is configured to be attached to said male tag component via said aperture, wherein said elongated plastic member is configured to be of sufficient length so that a substantial portion thereof extends beyond the male tag component and the lower panel portion of the female tag component when the insecticide strip is in use;
• wherein the diameter of said circular portion of said aperture is sized to receive said post when said strip is attached to the male tag component so that the strip is pendularly suspended from the post of the male tag component and positioned between said male and female tag components;
• and further
• wherein said aperture has a completely closed boundary and wherein a boundary region surrounding said aperture is reinforced.