Efficacy of Natural Enemies of the California Red Scale on Citrus in Israel1
Authors: BEN-DOV, YAIR; ROSEN, DAVID
Source: Journal of Economic Entomology, Volume 62, Number 5, October 1969 , pp. 1057-1060(4)
Publisher: Entomological Society of America
Abstract:The interrelations between Aonidiella aurantii (Maskell) and its most important local natural enemies, the aphelinids Aphytis spp. and the coccinellid Chilocorus bipustulatus (L..), were investigated in an orange grove the southern Coastal Plain of Israel. The insecticidal check method was used in this study. It was found that natural enemies play a decisive role in retarding the buildup of California red scale populations on citrus, especially at the onset of summer. Thus, decimation of natural enemy populations at that period causes a marked increase in the percentage of live scales, which is followed by a massive outbreak of the scale's populations. However , local natural enemies alone were not sufficient to hold the California red scale population below the threshold of economic injury in the test plot.
Document Type: Research Article
Publication date: October 1969
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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