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Effect of Tomato Cultivar and Fertilizer Regime on the Survival of Liriomyza trifolii (Diptera: Agromyzidae)

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A comparison of host-plant suitability was made with Liriomyza trifolii (Burgess) reared from chrysanthemums (Chrysanthemum morifolium Ramat) on selected cultivars of tomato (Lycopersicon esculentum; 'Big Boy', 'Cherry', 'Early Girl', 'Patio', 'Supersteak', 'VF 6718', and 'VF 7718'). Mean numbers of pupae or adults per plant and the survivorship of pupae and emergence of adults were used as criteria to analyze the suitability of these cultivars as hosts. Little survival was observed on six of the seven cultivars. Lowest (0.24) and highest (0.60) percentage of pupa survival was obtained with the cultivars 'VF 7718' and 'VF 6718', respectively. The suitability of two cultivars, 'Patio' and 'Beefsteak', as hosts for L. trifolii was significantly improved by increasing total fertilizer delivered to the plant. Higher fertilizer levels increased plant size, larva survival, and size of pupae. The effect of tomato cultivar and fertilizer regime on development of L. trifolii and the possible movement of this species from a bedding-plant nursery to commercial tomato fields are discussed.

Document Type: Research Article

Publication date: February 1, 1987

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  • 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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