CONTROL WORK ON MEALY BUG AND PEAR-MIDGE.
Rearing and distribution of the Cryptolaemus ladybird for the control of apple mealy bug have been brought up to a considerable scale this season at. the Department's Biological Laboratory. From a colony carried through the winter from last autumn sufficient quantities of beetles have been reared for liberation at intervals at Auckland, Hastings, Blenheim, and Motueka, and further material is being sent out. Reports from Motueka state that the beetle there is already showing its efficiency. Messrs. G. Stratford and W. H. Rice, of the Horticulture Division, have carried out the work of. liberation at Motueka and Hastings respectively. ■ The latest results in the use of calcium cyanide as a soil-fumigant against the pear-midge are extremely promising. Before an account of the work is issued the outcome of certain experiments is being awaited. -
David Millev,
Entomologist.
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New Zealand Journal of Agriculture, Volume XXX, Issue 2, 20 February 1925, Page 76
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143CONTROL WORK ON MEALY BUG AND PEAR-MIDGE. New Zealand Journal of Agriculture, Volume XXX, Issue 2, 20 February 1925, Page 76
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