USEFUL TO ORCHARDISTS.
Mr Pennell, of Roxburgh, strongly recommends the new insecticide arsenate of lead, which has the advantage of not burning or in any way injuring the foliage and frn.it of the trees. It is especially effective in destroying the codlin moth, brown beetle, black aphis, leach on cherry and plum, etc. Arsenate of lead is prepared by dissolving lloz of acetate of lead and 4oz of arsenate of soda in loOgal of water ; these substances quickly dissolve and form arsenate of lead ; when dissolved, add twoquarts of molasses or glucose to make the mixture adhere to the trees. This substance is a very fine powder, and does not require nearly so much agitation as Paris green when spraying, and will remain on trees even after quite heavv rains. Mr Ohye. of Oliaupo, prepares the insecticide by dividing each of the two chemicals into three equal parts, and dissolving one part in 2gal of hot water; then dissolve one pint and a-half of treacle in 2gal of hot water and stir it into the poison. Then take 2gal, or half of the mixture, and otrain into a 24gal barrel, filling up the barrel with clean water. Similarly with the other five parts. This gives six barrels full, i or 144 gal in all. • Spray every week or ton days.—‘Tuapeka Times.’
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USEFUL TO ORCHARDISTS., Evening Star, Issue 10427, 23 September 1897
USEFUL TO ORCHARDISTS. Evening Star, Issue 10427, 23 September 1897
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