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Biological Properties and Pest Status of <I>Megamecus shevketi </I>Marshall (Coleoptera: Curculionidae) at Vineyards

Author(s): Mehmet Karagoz | Ibrahim Cakmak

Journal: Journal of Entomology
ISSN 1812-5670

Volume: 3;
Issue: 1;
Start page: 51;
Date: 2006;
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Keywords: Weevils | grape | Megamecus shevketi | curculionidae

Megamecus shevketi Marshall at vineyards was investigated from 1998 to 2003 in Manisa, Turkey. Surveys were carried out weekly during March and April. In addition, some of the biological properties of M. shevketi were determined in plastic jars which were closed with insect-proof gauze at laboratories. Results showed that adult M. shevketi emerged during March and April and fed themselves into the buds and the leaves, lacerating the vine boughs. At the infested vineyards, M. shevketi caused 10-95% damage on buds and approximately 9-48 adults were counted per vine. Eggs were laid 19.025.19 (9-40) days after the first mating of adults from early April to late August at the laboratory studies. Daily egg production per female was 5.951.41 (1-49) and total egg production per female was 441.25163.42 (170-794) eggs. Oviposition and postoviposition periods were 72.3626.08 (25-113) and 71.34+7.03 (1-53) days, respectively. The eggs hatched in 10.350.04 (10-11) days and the hatching ratio was 100%.]]>
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