Square Foot Coverage
Since 1967, our general rule of thumb has been to space large traps every 40 feet around the inside perimeter wall of a food plant or pharmaceutical laboratory. If you multiply 40 x 40, you get 1600 square feet. However, any square foot coverage estimates are questionable.
The distance at which an insect responds is determined by lamp type and trap design, of course, but also by the vision and nature of the target pest. Response distance varies by species, not just trap design.
In addition, the number of traps required will vary with the type and condition of the facility, the extent of the problem, and management's level of concern. A facility next to a cow pasture, or an unkempt dumpster, or an older facility not interested in sealing cracks, or one plagued with badly designed dock lighting will need more traps per square foot. A 40' x 40' room (1600 sq. ft.) may need no traps or four traps or more depending on the circumstances.
There is no science (no published research) to back square foot claims. They may be helpful in answering novice questions or as a general starting point in designing a flytrap system. You can always add or move a trap later, but they certainly shouldn't be used to compare one brand trap to another, since they are subject to marketing department invention and exaggeration (i.e., No ILT will cover or clear an acre, half-acre, or quarter acre of flying insects).
However, Gilbert® Professional Insect Light Traps have got you covered with industry leading designs. No one can fine tune your fly system better than a sincere dedicated thinking person onsite. Our distributor network features just such people. And, experience counts.
Call toll-free (800) 643-0400 for strategic installation assistance. Together, we will reason our way to the best coverage for your facility and advance the art and science of ILTs.
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