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Show Cattle Horn-Fly Trap 1 ;il Considerable success has been attained at-tained In Australia using a horn-fly trap -constructed in a gateway or lane through which the cattle must pass once or twice a day. The passageway pas-sageway through the trap la 33 inches wide and 100 feet long. The glass In the roof is coated on the Inside with DDT and protected from the cattle by coarse screen Type of cattle horn-fly trap recommended rec-ommended by Macdonald college. wire. The animal passing through the trap has to brush between and under two sets of curtains, and eight weighted strips, brush her legs and belly, dislodging the flies which rise to the light and contact the treated glass. |