OCR Text |
Show THAT WHITE WOOLLY STUFF What It Is and How to Destroy It, and Thereby Savo Apple Crop. Editor .Tribune: Very often the inquiry in-quiry is made, -what 13 the white 'woolly stuff on my apple trees, and what shall I do for It? This white woolly stuff Is the woolly "aphlB. If you wish to Investigate, blow the white wool off these spots, and you will see a mass of Insects resembling bedbugs ln general" appearance, especially espe-cially If seen under a magnifying glass. The remedy is to spray, was or scrub these spots with a strong kerosene emulsion, which can bo made for this purpose by dissolving half a pound of hard soap (not resin soap), whale oil. or castile soap, or good homemade soap preferred ITi a gallon of boiling water. Then add two gallons of kerosene, stir violently or (better still) pump It back and forth with a spray pump until It appears like a soft soap or whipped cream. Now add. ten gallons of water to every gallon of coal oil for tho woolly wool-ly aphis or for the elm scale. For red spider on pear or cherry trees use fifteen fif-teen gallons of water to every gallon of coal oil. For peach aphis or lice use twenty gallons of water for every gallon of cnnl nil. The difference In strength of mixture Is necessary because of the difference ln the tenderness of trees, and also on account of the toughness or tenacity'' of life of the different Insects. Tho stronger emulsion used for the woolly aphis or elm scale would kill a peach tree, and tho weaker emulsion used for peach lice would not kill the woolly aphis or elm scale. Therefore It is necessary to measure your materials and make the strength of the emulsion according to that for which It is to be used. Somo people. Inquire, why not leave the insects alone? What harm do they do? The Insects suck the sap of tho trees and bushes that should go to mako fruit, and turn this sap into insects in-sects Instead of fruit, thereby weakening weaken-ing the trees, causing them to produce much less and Inferior fruit, besides preventing the trees from developing fruit buds for next year's crop of fruit, and thus causing us an Injury that nothing "can repair, If we neglect to spray now. Now hns the time arrived when we should spray apple and pear trees for the second crop of worms, which Is beginning be-ginning to come. For this purpose the No. 1, or white arsenical spray should be used. This Is best made as follows; Take one pound of white arsenic, four pounds of common washing soda, two gallons of water; boll all together about fifteen minutes, or until dissolved, slake In another vessel eight pounds of good lime, thin It down und strain your lime water through a gunny sack Into your spray barrel, add 200 gallons of watqr and then your white arsenic and soda solution. Use a good spraying outfit with a good Cyclone or Vermoral or any other nozzle that will throw a spray like a mist, the finer the better, as wo want to put a covering or poison mlat on all upples and leaves; whereas In the first two spring sprayings a coarse nozzlo and a heavy parls green spray should be used ln order to strike the cup or calyx of the apple, and put a poison into the calyx that will sink to the bottom bot-tom of the calyx of the apple und remain re-main there for the season. Now- the spray nozzle to be used should be much liner than that used ln winter or spring, or poor results will follow. Cabbage should be watched for both worms and aphis. If they appear, use the kerosene emulsion IS to 1, which will be effective if taken In time. The worms that eat the blossoms of the tomatoes should also be looked for now. If they are found, the No. 1 arsenical ar-senical spray will cure them. The same spray should tie used for pear and cherry cher-ry leaf slug where they are foupd. JOHN P. SORENSEN, Inspector of Pests, Salt Lake City, July 11. |