SAMPLING TECHNIQUES

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

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

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

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

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

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