Spray and Fumigation Combination for Resistant Red Scale

1 October 1927

journal article
research article
Published by Oxford University Press (OUP) in Journal of Economic Entomology

Vol. 20 (5) , 667-673
https://doi.org/10.1093/jee/20.5.667

Abstract

Results are given of spray alone, fumigation alone, and these in combination against the red scale on citrus trees. Highest efficiency was secured when fumigation followed within a week or ten days the application of oil spray. Oil shown to absorb little if any HCN gas and an oil spray serves as a protective film to the citrus tree, rendering it less susceptible to hydrocyanic acid injury.

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