Influence of Maturity Stage of Grape Berries on the Development of Lobesia botrana (Lepidoptera: Tortricidae) Larvae
Authors: Savopoulou-Soultani, M.; Nikolaou, N.; Milonas, P. G.
Source: Journal of Economic Entomology, Volume 92, Number 3, June 1999 , pp. 551-556(6)
Publisher: Entomological Society of America
Abstract:Larvae of Lobesia botrana Denis & Schiffermueller were reared on grape berries of different stages of maturity. The berries belonged to 5 grape varieties: ‘Soultanina’, ‘Muscat Ambourg’, ‘Razaki’, ‘Italia’, and ‘Xinomavro’. The berries were collected every 8–10 d from 1 wk before the stage of veraison until grape maturity. Larvae were reared individually on the grape berries of each collection day to observe their development. The larvae were allowed to develop on berries of the same variety and maturity stage until pupation. Rearing cups were examined daily to observe the condition of the berries and the larval development. The percentage of adults that emerged was counted as well. Larval development was faster on midmature or mature berries depending on the variety. In all varieties and all stages of maturity, male larvae developed faster than female. The fastest development was observed on Razaki. The percentage of adult emergence was the largest on the mature berries although there were no differences among the emergence of adults from larvae on berries of different varieties. The observed differences were associated with differences in the sugar content and acidity during the process of berry maturity, although other unmeasured factors are likely to be important.
Document Type: Research Article
Publication date: June 1, 1999
- 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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