System for dispensing a pest attractant or repellent, corresponding refill and method

A method of dispensing a pest attractant or repellent fluid into a surrounding environment, comprising:

• regulating, using a first flow restrictor, a flow of the fluid from a main reservoir containing the fluid to a control volume coupled to the main reservoir, the first flow restrictor being arranged to restrict the flow of fluid by compressing a flexible conduit containing the fluid, the first flow restrictor comprising a resilient member biased to compress the flexible conduit;
• and,
• regulating, using a second flow restrictor, a flow of the fluid from the control volume to the surrounding environment,
• wherein regulating the flow of the fluid from the main reservoir to the control volume comprises opening, by electronically controllable actuation means, the first flow restrictor and then closing the first flow restrictor after a predetermined duration to thereby dispense the fluid from the main reservoir to the control volume, or
• wherein regulating the flow of the fluid from the control volume to the surrounding environment comprises opening, by the electronically controllable actuation means, the second flow restrictor and then closing the second flow restrictor after a predetermined duration to thereby dispense the fluid from the control volume to the surrounding environment;
• and,
• wherein an evaporation medium is positioned at or downstream of the first flow restrictor.