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=== Food source isolation ===
=== Food source isolation ===


Due to the difficulty in eliminating the bugs from a room or dwelling, a (suspected) bed may be isolated, thus removing the insects' food source - humans. Bedbugs cannot easily cross petroleum jelly or double-sided sticky tape, and have difficulty climbing smooth surfaces of plastic, metal or glass (especially if dusted with talc or diatomite), hence each leg of the bed may be set in a metal can or bowl (the bottom of which may thickly coated with petroleum jelly) to avoid movement from the bed to the hiding places. A barrier of double-sided sticky tape (such as carpet tape) or petroleum jelly may be applied around each bed leg, or each leg may be set on a plastic furniture block in a tray of water or diatomite.
Due to the difficulty in eliminating the bugs from the room or dwelling, the (suspected) bed is isolated, thus removing the insects' food source - humans. Bedbugs cannot cross petroleum jelly and have difficulty climbing metal or glass, hence each of the bed legs is put in a tin can (the bottom of which is thickly coated with petroleum jelly) to avoid movement from the bed to the hiding places. Although bedbugs cannot fly or jump, they have been observed climbing a higher surface in order to then fall to a lower one, such as climbing a wall in order to fall onto a bed. Hence alternatively, a double-sided sticky tape (such as carpet tape) is applied around each bed leg, or to keep each leg on a plastic furniture block in a tray of water.
 
Although bedbugs cannot fly, or jump over 6 inches, they can climb to a higher surface (up a wall or shelf, or across a ceiling) in order to then fall or glide to a lower one, in order to fall onto a bed. In some dwellings, more barriers may be needed.


=== Diatomaceous earth (DE) ===
=== Diatomaceous earth (DE) ===
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