Studies of two parasites of olive scale, Parlatoria oleae (Colvée): IV. Biological control of Parlatoria oleae (Colvée) through the compensatory action of two introduced parasites

Huffaker, C; Kennett, C

Studies of two parasites of olive scale, Parlatoria oleae (Colvée): IV. Biological control of Parlatoria oleae (Colvée) through the compensatory action of two introduced parasites

Authors

C. B. Huffaker
C. E. Kennett

Authors Affiliations

C. B. Huffaker was Professor of Entomology and Entomologist in the Experiment Station, Berkeley; C. E. Kennett was Associate Specialist in the Experiment Station, Berkeley.

Publication Information

Hilgardia 37(9):283-335. DOI:10.3733/hilg.v37n09p283. March 1966.

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Abstract

The competitive population interactions between Aphytis maculicornis and Coccophagoides utilis were analyzed in order to determine their roles in controlling olive scale, Parlatoria oleae, in California olive groves. There is strong evidence that the two parasites working together give better control of olive scale than does A. maculicornis working alone. Conclusions are based on observations of parasite populations at selected groves over a period of five years.

K-values for various factors affecting olive scale mortality were developed in order to measure and assess the controlling effects of these two parasites on olive scale from generation to generation.

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Studies of two parasites of olive scale, Parlatoria oleae (Colvée): I. A taxonomic analysis of parasitic Hymenoptera reared from Parlatoria oleae (Colvée)

Studies of two parasites of olive scale, Parlatoria oleae (Colvée): II. The biology of Coccophagoides utilis Doutt (Hymenoptera: Aphelinidae)

Studies of two parasites of olive scale, Parlatoria oleae (Colvée): III. The role of an autoparasitic aphelinid, Coccophagoides utilis Doutt, in the control of Parlatoria oleae (Colvée)

Studies of two parasites of olive scale, Parlatoria oleae (Colvée): V. The culture of Coccophagoides utilis Doutt, a parasite of Parlatoria oleae (Colvée)