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Innovative Insect Sampling Techniques for Efficient Data Collection

Explore various insect sampling techniques such as pitfall traps, yellow pan traps, Steiners traps, Malaise traps, sweep nets, and light traps. Learn how to set up and optimize these traps to collect ground dwelling arthropods efficiently.

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Innovative Insect Sampling Techniques for Efficient Data Collection

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  1. SAMPLING TECHNIQUES

  2. PITFALL TRAPS • adaptation of primitive hunting techniques • consist of a plastic cup • a hole is dug in the ground • the trap is sunk into the soil • the mouth is level with soil surface. • ground dwelling arthropods • Medium: soap

  3. YELLOW PAN TRAP • A tray sprayed with bright yellow colour • most insects attracted to bright yellow. • liquid detergent added to break the surface tension of the water • insects will drown • Collection: the best daily • Long period: Salt is added • Placed flat on the ground optional

  4. STEINER TRAP • Used chemical lure • Methyl eugenol & Cue-lure (Bactrocera spp) • Traps attached to tree branches Standard steiner trap Modified (1.5L Plastic bottle) wire Cotton with ME small holes around bottle

  5. MALAISE TRAP Collecting bottle with alcohol • tent-like structure • trapping flying insects • Hymenoptera & Diptera • Insects fly into net & hit middle mesh • Fly upward into collecting bottle containing alcohol

  6. SWEEP NET • not difficult but requires practice to become efficient • the net handle directed forward and the net opening pointed sideways • zig-zag

  7. LIGHT TRAP • Nocturnal insects • fluorescent bulbs • or bulbs emit ultraviolet wavelengths (black lights)

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