INSECTICIDES

Wairoa Bell, Volume V, Issue 166, 7 October 1892, Page 7

INSECTICIDES

Emulsions. 1. Stronger Emulsion of Kerosene,—4lb soap, disol ve in 1 gallon hot (roiling) water; remove from the fire, and add 2 gallons of kerosene while hot. Churn with a spraypump violently till the oil is emulsified ; add 27 gallons cold water for use. 2. Weaker emulsion.—lib soap, dissolve in 2 gallons hot water as before, but add only gallon kerosene, and dilute li' 1 8 gallons solution are made. Add ng 4 pint spirits turpentine to No 1, increased its stability. Allowing even 40 gallons of water to be added to 1 gallon of the emulsion, and sprayed on Tomato worms, it was very effective and did not injure the plants in the least.

3. Emulsion 1 —Adding 2 oz. of balsam of Fir with the kerosene makes an emulsion that adheres better to the surface of the leaves, and is slightly superior to N 1 for the armoured scales. 4. Using emulsion 2, only substituting the same quantity crude carbolic acid for kerosene, is specially valuable for Oak and Pear insects. 5. The same formula, using oil of Tansy or Sassafras, 1 oz. in place of the -J- gallon kerosene, is efficacious for roaches, mites, ticks, bed-bugs and pests. Arsnical, Resinous, and other Com pounds for Spraying. 1, To kerosene emulsion No 1 add loz. London Purple, and mix well. Highly recommended. 2, Resin compound.—Caustic soda, lib; resin 81b ; to make 32 gallons compound. Dissolve the soda in 1 gallon boiling water ; take out half; add the resin slowly to the remainder and boil, stirring rapidly ; when dissolved, add slowly the part taken out. Dilute till it will pass readily through a thin cloth, which should be always done. Dilute before using, to 32 gallons, This alone is valuable against most scales, but the addition of 2 oz. London Purple makes assurance doubly sure, against even the dreadful Icerya. 3, White arsenic, -J-lb ; sal soda, -J-lb ; water -J-gallon ; boil fill a solution is made, then dilute to a gallon. One quart of this to 50gallons resin compound —use on Peach, Pear, and Plum, either after fruit is gather - ed or just as bloom has fallen. Powders. 1. While slaking lpeck fresh lime, add lquart of kerosene, sift out lumps ; apply lightly to Cucumbers, Melons, and Tomatoes, for beetles and squash'ougs. 2.501 b land plaster, mix 1 pint crude carbolic acid ; sprinkle over leaves and Vines for aphides and beetles - 3. Pyrethrum. This, the powdered flowers of the Pyretbrum, when fresh, is especially valuable if sprinkled on infected leaves, or in boxes, drawers, &c. House flies and mosquitoes are easily subdued by closing up the room tightly and slowly burning in it a spoonful of the powder. It' is slightly narcotic, but not at all dangerous to human life. For infected Cabbage, Lettuce, Celery, and the like, or Tobacco, it is the best insecticide we have, involving no danger if eaten . 4. Tobacco.—This insidious narcotic is valuable in the destruction of plant-lice, mites, &c. Applied either as a powder or by its fumes it often is quite beneficial.