New Insecticide.

Oamaru Mail, Volume XXII, Issue 7001, 27 September 1897, Page 3

New Insecticide.

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 fruit of the trees. It is especially effective in destroying the codlin moth, brown beetle, black aphis, leech on cherry and plum, etc. Arsenate of lead is prepared by dissolving lloz of acetate of lead and 4oz of arsenate of soda in 150 gallons of water. These substances quickly dissolve and form arsenate of lead ; when dissolved, add two quarts 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, and will remain on trees even after quite heavy rains. Mr Ohye, of Ohaupo, prepares the insecticide by dividing the chemicals into three equal parts, and dissolving one part in two gallons of hot water : then dissolve one pint and a half of treacle in two gallons of hot water, and stir It into the poison. Then take' two gallons, or half of the mixture, and strain it into a 24gallon barrel, filling up the barrel with clean water. Similarly with the other five parts. This gives six barrels fall, or 144 gallons in all. Spray every week or 10 days,—Tuapeka Times.