Insect Light Trap Product

Overview

An insect light trap (ILT) is a passive or powered device that uses ultraviolet light to attract and capture flying insects for monitoring or control. The trap consists of UV-A (365 nm) or UV-B (313 nm) fluorescent tubes mounted inside a light-proof dark chamber with a reflector that concentrates the light toward a collection surface. Insects, many of which are attracted to UV, fly toward the light and are captured on a sticky board or drowned in a water bowl with a collection grid.

Light traps are used in two ways: as a detection and monitoring tool in integrated pest management (IPM) programs to track pest populations in real time, and as a direct control method to reduce pest counts in greenhouses, food-processing facilities, restaurants, and agricultural storage areas. The non-toxic, chemical-free approach makes them compatible with organic farming and enclosed-space pest management.

How it works

The Lamp Assembly contains two to four UV fluorescent tubes (typically UV Fluorescent Tubes at 15–40 W each) held in Lamp Sockets and supported by Tube Holder brackets. The Ballast and Starter circuit supplies the correct voltage and current to ignite the gas discharge: magnetic ballasts use an Ballast Coil or Electronic Module inductor and Power Factor Capacitor to limit current and establish voltage, while electronic ballasts use solid-state switching for faster ignition.

The Reflector Mirror, a parabolic Aluminum Reflector Shell with a Reflective Coating, bounces and focuses UV output from the tubes toward the collection area. A Guard Mesh surrounds the tubes to prevent insects from fouling them. The Light-Proof Housing is painted black or molded in opaque plastic to eliminate competing ambient light and maximize the attraction contrast of the UV source.

Flying insects perceive UV light strongly: many flower-visiting species, fruit flies, fungus gnats, and nocturnal moths navigate by ultraviolet cues. When the trap is lit in a dim or dark environment, insects fly toward it in response to this innate behavior. They enter through gaps in the guard or directly toward the collection zone.

In glue-board designs, insects are captured on the Glue Board, a sticky-surface panel coated with Adhesive Coating (typically a non-drying castor oil or mineral oil base) in the color blue, yellow, or white depending on the target species. The board is held in place by Board Guide Slots guide rails inside the Chamber Body.

In water-trap designs, insects that land on the Collection Grid (Water Trap) fall through perforations into the Water Pan, where a few drops of Soap Concentrate (dish soap) break the water surface tension and cause them to drown.

The Thermal Cutout bimetal cutout safeguards against ballast overheat if a lamp fails or the guard becomes fouled. The Power Connection supplies mains power, and an optional Optional Timer allows the operator to run the trap only during high-activity periods (typically dusk to dawn for many pest species).

Trap placement and selectivity

Insect traps are most effective in enclosed or semi-enclosed spaces (greenhouses, warehouses, kitchens) where competing light sources are minimal. Placement near fruit, plants, or other attractants amplifies catches. Board color matters: yellow attracts aphids and whiteflies, blue attracts thrips, and white attracts a broad spectrum.

The non-selective nature of light traps means beneficial insects (pollinators, parasitoids) are also caught, so placement and timing must be carefully managed in cropping systems. In monitoring mode, glue boards are photographed or counted weekly to track population trends and trigger spray applications only when thresholds are exceeded. Cycle time for glue-board saturation varies from 1–4 weeks depending on pest pressure.