OCR Text |
Show Discarded Auto Oil Is Unfit for Spraying Use Discarded automobile crank-case oil should not be used for spraying fruit trees and other vegetation for the control con-trol of insect pests, according to the Ohio experiment station. Crank-case oil is dangerous because it cannot be diluted readily with water and is almost' sure to injure the foil-age. foil-age. The oils used for spraying trees are quite different from the oils used In automobiles. They have been treated in such a manner that they mix readily with water and they are diluted for using. Discarded crank-case oil often contains con-tains small particles of metal and carbon car-bon which are very likely to cause injury in-jury to the spray pumps and nozzles, and these objections alone would make the use of such oils inadvisable. The main objection to them, however. Is file fact that they do not mix readily with wator, there is no definite rule for dilution end they usually damage the trees. |