Soft brown scale on citrus: Abnormal increase of scale population in groves treated with parathion investigated in survey
AuthorsH. S. Elmer
W. H. Ewart
G. E. Carman
Authors AffiliationsH. S. Elmer is Assistant Specialist in Entomology, University of California College o/ Agriculture, Riverside; W. H. Ewart is Assistant Entomologist, University of California College of Agriculture, Riverside; G. E. Carman is Associate Entomologist, University of California College of Agriculture, Riverside.
Hilgardia 6(1):10-13. DOI:10.3733/ca.v006n01p10. January 1952.
Not all commercial groves treated with parathion develop abnormally high populations of soft brown scale but where populations do increase they usually are extensive and have definite characteristics in comparison to populations found in groves not treated with parathion.
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