Quite frankly, they work amazingly! You will be absolutely satisfied with the proven results you get when employing these Ortho NO PEST Strips to your garden. Although it isn't kill on contact, the strip gives off a virtually odourless insecticidal vapour, dichlorvos which will provide control of flies, mosquitoes and other small flying insects for up to four months. Allow free air movement but hang strips away from open windows and doors where excessive ventilation may reduce efficiency. Strips should be at least 3 metres apart.
Not to be used where a person will be present for more than 4 hours per day, and
DO NOT use in areas where the chronically ill may be exposed