Show Oil Sprays Necessary to Destroy San Jose Scale Many fruit growers are face toce to face with a serious Infestation of ot San Jose scale particularly particularly- In old apple orchards orchards or or- chords which the routine sulphur lime spray does not appear to hold In check Under such conditions It may be necessary necessary sary to use oil emulsion sprays In order order or or- der dr the orchard say Growers are cautioned to exercise exer else cise care lare In preparing find Dud applying these oil sprays however und and to avoid using them In successive seasons If it possible because of at the danger of ac- ac cumulative ill effects of at the sprays spray's upon the trees In other words as evidence of soon as the scale shows giving way to the oil spray a n return to sulphur lime-sulphur Is advised with year CO-year- In some experiments old Baldwin Baldwins and badly Infested Infested In In- with the scale very cry satisfactory results have bave been secured during the I first season w with miscible oil red engine engine en en- gine glue oil and oil sprays when compared with sulphur dusts lusts and ami lime lime- sulphur sprays The dusts were practically prat I fI worthless S In preventing pre spotting spot ting tang of the fruit under these conditions I of at heavy Infestation by the scale It Is said while e 41 per cent of the apples examined from front th the trees sprayed with sulphur lime were spotted spoiled Fruit from the tre trees s sprayed with the oil emulsions emulsions emul emul- slops showed only from 7 to 10 per percent percent cent cen t spotting ng |