SOWING: Common Questions: 1. How many traps do you need to use? As a guideline, use at least one trap per 25 square feet of greenhouse area. 2. How do you use them? Remove the protective cover paper from the traps. Suspend the traps just above the plants using the enclosed wire ties. Additional traps may be suspended near vents and doors to catch any insects flying in from outside. Where plants are grown on benches, traps may be laid horizontally on the bench, removing the cover paper from the upper surface. When the trap is in need of replacement, the second side of the trap may be used, (the cover paper from the second side may be used to re-cover the first side.) 3. When is the best time to use them? Best results will be achieved if traps are introduces early in the season, before the pest is established. If adults are already present they should be disturbed by trapping the plants. 4.How long do the traps last? The traps will stay sticky and attractive for several months (they should be changed sooner if more than half the surface is covered in insects or dust.)