An article for placement on a surface and having a carrier body of cork in which a quantity of a repellent or insecticidal agent is stored for vaporization over a duration. The carrier body is provided with an electrostatic retainer or an adhesive strip for article rentention on a surface. Repellent or insecticidal agents include those from pyrethrum or an extract from seeds of the neem tree or diazanon, the latter when the article is used outdoors.