DIAMOND-BACK MOTHS.
IN MASTERTON GARDENS. Mr A. W. Hogg, M.P., recently wrote as follows to the Biologist of the Agricultural Dep&rtanenit:— "I am enclosing a sample of \ cabbage, leaf .taken from the garden, of a wellknown, resident. Be , has several plots of cabbage all in a similar condition. Not only are the leaves skeletonised, but the hearts are eaten ouit of the plants. Can you suggest or recommend a remiedy ?" Mr A. H. Cockayne, Biologist, re-, plies:—"The specimen indicates that the plant lias been, attacked by tine diamond-back moth. Tbii's insect is the most serious pest of our .turnip, rape and) allied crops, and is making the growing of turnips on an extensive scale a most precarious undertaking. On small areas spraying with arsenate of lead—lib. to 25 gallons of water—is effective if taken in hand .before the caterpillars have done any extensive damage. Of course with a large area this treatment is impracticable."
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Wairarapa Age, Volume XXXII, Issue 10233, 9 May 1911, Page 5
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154DIAMOND-BACK MOTHS. Wairarapa Age, Volume XXXII, Issue 10233, 9 May 1911, Page 5
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