An interesting experiment has been carried out by Entomologist P. C. Hely at an Erina orchard, in order to test the efficacy of DDT against the citrus ... [ILLUSTRATED]
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The Wingham Chronicle and Manning River Observer (NSW : 1898 - 1954), Tue 20 Nov 1945, Page 1
It's easy and takes two shakes of a lamb's tail!
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