A TRAP FOR BEETLES
It is claimed that ultra-violet rays ire now being employed to kill harm:ul insects, particularly the Japanese ooetle. Finding that this beetle's eye is "tuned" to receive light waves of a length unseen by the human eye, an inventor- designed a trap, made of two reflectors, the lower one filled with water and a haif-ineh layer of kerosene. When the lamp is lighted the kerosene becomes luminous, emitting a blue-white light of very low intensity. which lures the beetle to death.
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https://paperspast.natlib.govt.nz/newspapers/EP19360811.2.46
Bibliographic details
Evening Post, Volume CXXII, Issue 36, 11 August 1936, Page 7
Word Count
85A TRAP FOR BEETLES Evening Post, Volume CXXII, Issue 36, 11 August 1936, Page 7
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