K. Khfif, Zakaria Labaioui, K. Koledenkova, A. Zaid, L. E. Rhaffari, Y. Brostaux
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Predatory Performance of Chrysoperla carnea (Neuroptera: Chrysopidae) on Jacobiasca lybica (Hemiptera: Cicadellidae) under Laboratory Conditions
ABSTRACT Jacobiasca lybica (Bergevin & Zanon) (Hemiptera: Cicadellidae) is a polyphagous pest that damages grapevines in Europe and citrus fruits in Morocco. Management of this insect is based mainly on chemical control, but there is an urgent need to develop an alternative management tool, such as biological control. In this study, we evaluated the predation rate of the first-to third-instar Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) on J. lybica under laboratory conditions. The predation rate of each lacewing instar was determined 24 h after placing an individual lacewing larva in a Petri dish containing a freshly detached grape leaf with 15 adult and five immature leafhoppers. The average predation rate by the third instar was 47.8%, which was significantly higher than that of the second instar (31.1%). The predation rate was not different between the first (21.7%) and second instars. The predation rates for leafhopper nymphs (46.7%) were significantly higher than for the adults (29.1%).
期刊介绍：
The Journal of Agricultural and Urban Entomology (JAUE) (Journal of Agricultural Entomology, Jan 1984 - Oct 1998 volumes 1-15) is published under the auspices of the South Carolina Entomological Society (SCES). The Journal publishes contributions of original research concerning insects and other arthropods of agricultural and urban importance to include those affecting humans, livestock, poultry, and wildlife. JAUE is particularly dedicated to the publication of articles and notes pertaining to applied entomology, although it will accept suitable contributions of a fundamental nature related to agricultural and urban entomology.
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