Evaluation of Visual Damage Thresholds for Management of Cabbage Caterpillars in Florida and Georgia
Authors: Leibee, G. L.; Chalfant, R. B.; Schuster, D. J.; Workman, R. B.
Source: Journal of Economic Entomology, Volume 77, Number 4, August 1984 , pp. 1008-1011(4)
Publisher: Entomological Society of America
Abstract:Action thresholds consisting of 2.5, 5.0, and 10.0% of plants with new damage, 0.2 and 0.5 new hole or window per plant, and 0.1 medium to large larvae per plant were evaluated at four locations for the management of the cabbage caterpillar complex: cabbage looper, Trichoplusia ni (Hübner), diamondback moth, Plutella xylostella (L.), and imported cabbageworm, Artogeia rapae (L.). The thresholds were successful at two of the four locations. Where successful, all thresholds gave similar results based on marketability. The percentage of new damage thresholds resulted in more insecticide applications than the other thresholds. Weaknesses in the use of the action thresholds were evident in this experiment when the insect pressure was abnormally high, the relative abundance of each species varied, or atypical species were present.
Document Type: Research Article
Publication date: August 1, 1984
- 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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