Chlorpyrifos and Diazinon as Barriers to Argentine Ant (Hymenoptera: Formicidae) Foraging on Citrus Trees
Authors: Moreno, D. S.; Haney, P. B.; Luck, R. F.
Source: Journal of Economic Entomology, Volume 80, Number 1, February 1987 , pp. 208-214(7)
Publisher: Entomological Society of America
Abstract:Argentine ant, Iridomyrmex humilis (Mayr), was effectively excluded from foraging in citrus trees by removing foliage from tree canopy (skirt-pruning) within 60 cm of the ground and by applying 2% (AI) liquid chlorpyrifos 4 emulsifiable concentrate to the basal 15 cm of the trunk, or by placing a ring of 13 g (AI) diazinon 14 granular (G) on the ground adjacent to and around the trunk. These treatments were effective for 8 and 3 months, respectively. Applications of limonene to the basal trunk area of skirt-pruned trees, or uniform distribution of 32 g (AI) diazinon 14 G beneath the canopy of unpruned trees did not prevent ants from foraging in the trees. Data suggest that in the absence of ants, populations of honeydew-producing citrus mealybug, Planococcus citri (Risso),and woolly whitefly, Aleurothrixus floccosus(Maskell), and nonhoneydew-producing California red scale, Aonidiella aurantii (Maskell),were effectively reduced by their respective natural enemies. Populations of honeydew-producing species declined sooner than populations of California red scale.
Document Type: Research Article
Publication date: 1987-02-01
- 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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