Parasites are controlling red scale in southern California citrus
AuthorsP. H. De Bach
E. B. White
Authors AffiliationsPaul H. De Bach is Professor, Department of Biological Control, University of California, Riverside; John Landi is Laboratory Technician IV, Department of Biological Control, University of California, Riverside; Ernest B. White is Laboratory Technician IV, Department of Biological Control, University of California, Riverside.
Hilgardia 16(12):2-3. DOI:10.3733/ca.v016n12p2. December 1962.
Infestations of California red scale, Aonidiella aurantii, are at their lowest levels since this pest first became widespread and seriously damaging in citrus orchards of southern California. Chemical treatments have been eliminated in many areas, and in others, reduced to applications every one to two years. The activities of minute hymenopterous parasites, particularly the golden chalcids, Aphytis melinus and A. lingnanensis, are credited primarily with this reduction of the scale.
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