Citrus Flat Mite Injury Patterns on Some Citrus Varieties
Author: Elmer, H. S.
Source: Journal of Economic Entomology, Volume 61, Number 6, 16 December 1968 , pp. 1689-1692(4)
Publisher: Entomological Society of America
Abstract:Brevipalpus lewisi McGregor populations exist on all varieties of citrus grown in California. Their feeding may produce scars which subsequently can downgrade the quality of the fruit, except grapefruit, at the packing house. Population levels necessary at various fruit growth stages to cause injury to navel oranges, tangerines, and lemons were determined, but attempts to produce these injury patterns on grapefruit by manipulating the mite population were unsuccessful. Scarring did not occur after the fruit had reached the mid-growth. stage regard less of the population level.
Cold-pressed rind oil extracted from Valencia oranges, lemons, tangerines, and grapefruit caused mitelike scars on each of these varieties, including grapefruit, when small drops of these oils were placed on the fruit surface. The oil glands on grapefruit appear to be less numerous than on other citrus varieties and B. lewisi are able to feed around them so they do not release grapefruit oil onto the fruit surface.
Document Type: Research Article
Publication date: 16 December 1968
- 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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