Show tremendous increase in the use of oil sprays the use of oil sprays in the east has increased tremendously during the last ten years mainly because of the prevalence of the european red mite in consequence other problems have arisen such cuch as the combination of oils with fungicides and which have in turn reacted upon the 01 oil spray business so that better oils are being marketed than ever before the great variety offered has campli bated the proper selection of oil sprays and careful consideration on the basis of cost safety toxicity reliability and compatibility Is feces sary much experimentation Is needed in this field commercial oil emul alons have not proved to be better killing agents than miscible oils for red mites a fact which deserves con eider atlon and finally studies of safety of the various products so far indicate caution for pears and plums together with additional caution on all fruits for the unknown product especially it if the formula Is new |