A SUCCESSFUL EXPERIMENT.
j MOTOR OIL FOR SPRAYING. | ‘Used heavy motor oil for orchard- | spraying during the dormant period | ha 3 been tried by Mr iC. Calvert, of j Myross >Busli, .Southland. It proved j quite effective as an insecticide on old ; apple trees badly affected with woolly j aphis. The common use of oil en- | gines and the need for drawing off the I used oil from the crankcase occasioni ally makes this material (which is usually thrown away) generally available in small quantities, hut sufficiently large for an application to the ! domestic or farm orchard. It should be applied during the dormant period in autumn or early spring. PreparaI tion is as follows:—Place in a vessel lilb. household soap and 1 gallon oil, and heat them over a fire till the soap is dissolved; remove from the fire, and, with a spray pump thoroughly agitate the contents, at the s&me time slowly adding J-gal. water; when the emulsification is complete add 11J gallons water; the mixture is then ready for use. It is imperative that the water should be soft. Where this is questionable add 2oz. -washing soda to every four galions water. Rain water is always to be preferred for the mixing of spraying compounds.
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Bibliographic details
Putaruru Press, Volume IV, Issue 137, 17 June 1926, Page 3
Word Count
208A SUCCESSFUL EXPERIMENT. Putaruru Press, Volume IV, Issue 137, 17 June 1926, Page 3
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