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Show RAISE WORMY APBLES EXPECT LCSS By .1. E. Buck, Virginia, With the possible exception of tho San Joso scale the codling moth Is tho most destructive Insect with which our orchardlsts havo to contend. Theso worm pests, which leave tho apples In lato summer and fall, hide and spin epeobns under bark scales, In rubbish about trees, In decayed placos on the tree, and about applo bins and storage houses. In theso cocoons they pass tho winter. In the spring, as tho days begin to get warm, tho worm changes to a "pupa" lnsldo tho cocoon and soon th j pupa changes to a moth, which splits tho case and crawls out. It seems qulto generally truo that the temperature conditions governing Entire Crop of SeWn Black Twig Trccj, Spracd SLv Times, Sound, 10.".2 Apples in Pile on Left; Scabby, 03 in Pilo on Right. tho blooming of applo 'trees also occasion oc-casion the appearance of tho moths in the spring. This habit of the moth l furnishes tho very best opportunity, of combating it. After the petals fall from the bloom, for a period of a1 week or ton days, tho calyx cavity remains more or less open, and the young apples more or loss upright. As 70 por cent or more of these first worms enter the younc apples at the calyx, or "blossom ond", this fur- nlshcs an excellent opportunity for filling tho calyx cups with poisonous spray, so that when tho young worms endeavor to cat their way into tho applo they are killed by the poison. This first application of spray should bo mado lnsldo of a week after tho potals fall from tho bloom. Evorythlng should ho gotten In readiness for this first spraying, for it is- certainly tho most Important of all tho sprayings, it being possible to kill over 95 por cent of tho worms by one thorough application of arsenate of lead at this time. A second application applica-tion of spray should be made two to threo weeks later, to supplement the first. Either Paris green or arsenato of lead can be applied In Bordeaux mixture. mix-ture. Tho areenato of lead can bo applied simply , In water, without any' danger to fruit or foliage. Paris groon can also be applied In water, but unless used in Bordeaux. 2 pounds of llmo should bo slaked and added to each 50 gallons of spray to prevent pre-vent possible damage to fruit and ' foliage. Six to eight ounces of Paris green " should be used to each 50 gallons of spray. In using arsenate of lead 2 ' pounds to 50 gallons of spray, In mist i sprays, has given us the best results. In mist spraya about 3 gallons were I sprayod on each tree (nine-year-old trees of fair size). Some trees wero ' ten to twelve years old. One nnd one- fourth pounds of arsenato of lead t gave splendid results in drench ' sprays with high pressure. In drench I spray 5 to 6 gallons were sprayed on i each tree, which would mako about l the same amount of 'poison as In the mist spray. Arsonato of' lead has proven superior su-perior to Parlb greon In all tho tests. It costs more, but tho extra saving of fruit will make up tho difference in cost Both Paris grcon and arsenato of lead, whon thoroughly applied, will produco a high per cent of clean fruit. Results of careful tests show that oor 99 per cent of worm-free fruit Is possible on tho picked apples by spraying with arsenate of lead, and over 98", a per cent, counting all the apples that drop during tho summer The mist sprays with Paris groon, G Entire Crop or Eight Black Twig Trees, Not Spntjcd. Sound, -IS) Apples on Left; Scabby, 1030 In Pllo on Right. ounces to 50 gallons, producod as high is 9G Wi per cont of clean fruit on the plckod apples, and 93 por cent, counting count-ing tho dropped apples. In using either poison the atmo3t care should be taken to have tho sxact amount desired. Either poison should bo thoroughly mixed In a little water before putting In the spray barrel or tank, A good brand of arsenate ar-senate of lead shoujd bo used, and thoro are many good brands. |