Do you know that you cannot determine when to replace the bulbs in your fly traps by either light brightness or color?
• The fly-attracting ultraviolet light lessons with use.
• Turning fly lights on and off results in faster loss of bulb attraction. Fly lights should operate continuously for maximum attraction of flying insects.
Fly trap bulbs less than one-year-old are most attractive to flying insects. For your fly traps, PestWest Quantum bulbs provide continuous maximum attraction of flying insects for 8760 hours or 1 year. Therefore, you need to replace fly trap bulbs every 12 months or in the spring (March), which is the beginning of flying insect season.