Fig. 1From: Synergist response of the Peach fruit fly, Bactrocera zonata (Saunders) to some ammonium based proteinaceous food bait attractantsSchematic diagram of the Y-tube olfactometer (OS: odour source, W: water for humidity, CH: charcoal for air purification, L: light and dotted lines represent Teflon tubes)Back to article page