Show around LIME SULPHUR OIL FOR WINTER SPRAYS F fruit ault growers are now considering winter treatments for their orchards this Is important for there are various pests which can be controlled eco I 1 only by proper w winter inter sprays but many growers waste much time labor and cash by applying improperly in timed or unnecessary w winter inter sprays says dr D r F I 1 U J lathrop lathro p entomologist cornolo tornolo tom tor nolo clemson ollege college c south carolina in most of the important orchard districts lime ilme sulphur solution has hag been the dormant spray tor for many years Y ears this solution may be purchased from commercial spray manufacturers acour or it may be made at home this is a very safe spray for dormant fruit trees and when used with reasonable cautions caution there Is almost no danger of injury to the trees lime sulphur has hai the great advantage of being both an insecticide and a furg fungicide icide oil sprays have attracted considerable attention in certain fruit growing sections during the past bast few years oil sprays may be divided into two clas classes s es miscible oil sprats as prepared by commercial manufacturers form an emulsion when mixed with mith water oil emulsions are the second type of oil sprays these sprays consist of an oil such as red engine oil emulsified with soa soap p and water sprays of this type may be purchased from commercial at manufacturers or prepared at home grovers are not advised to attempt making oil emulsions at home unless they have proper equipment and have had considerable experience in the use of oil sprays oil sprays properly applied are more effects e than lime sulphur for killing scale however they have several disadvantages if oil sprays are applied too strong or at the improper time or it if the oil lias has not been thoroughly emulsified serious injury may result to the fault trees in addition to this oil sprays have less fungicidal action than lime sulphur oil sprays are recommended om for an occasional cleanup of san jose scale but not for continued use season after season vor for the control of san jose scale on apples pears or peaches lime sul chur may be applied at any time while the trees are dormant it should be applied at the rate of one gallon of the standard concentrated solution to eight gallons of water however this spray tor for san jose scale may be combined with the spring spray for aphids this Is our standard recommendation tor for apple trees lime sulphur diluted to one to eight with the addition of nicotine sulphate three fourths pint to gallons of the diluted spray solution apply this spray to apple and pear trees just as the green tips of the buds appear in the spring on peach trees the spray application should not be delayed later than two or three weeks before the buds show green in the spring it if aphids are to be combated later applications of nicotine sulphate should be made in cases where san jose scale has been beeh especially injurious it way may be advisable to apply an oil spray this application may be made to best advantage either in the fall after the leaves are off but before freezing weather occurs or in the spring just as the buds show green at the tips applications should not be made during very cold weather menther |