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Suitability of Different Host Plants for Oviposition and Development of Homalodisca vitripennis (Hemiptera: Cicadellidae) and Its Implication on Mass Rearing

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Abstract:

The glassy-winged sharpshooter, Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae), is a major pest of grapevine (Vitis vinifera L.) in Texas and California. It is a known vector of Pierce’s disease and is considered the most significant insect pest threatening the grape industry in the United States. We evaluated the preference of four host plants for feeding and oviposition by H. vitripennis adult females. We also measured the suitability of nine host plants for the growth and development of eggs and nymphs under greenhouse and laboratory conditions, respectively. Embryonic survival exceeded 85% on all tested host plants, with the exception of sweet potato, Ipomoea batatas (L.) Lam. More than 80% of the nymphs successfully reached adulthood on sweet potato, black-eyed pea [Vigna unguiculata unguiculata (L.) Walp.], and eggplant (Solanum melongena L.). Developmental time of immature H. vitripennis nymphs was significantly affected by the plants on which they fed. The nymphs were more likely to die during the first instar on host plants such as Texas mountain laurel Evonymus japonica (Thunb.), or citrange Citrus sinensis × Poncirus trifoliata. Host suitability (nutrients) and stem and leaf texture, which varied among host plant species selected, seem to both play a significant role in nymphal development. Adult females were able to feed on woody plants, but a preference for black-eyed pea and sweet potato was observed. In captivity and given the plant choices offered, they deposited more egg masses on hibiscus (Hibiscus rosa-sinensis L.) and black-eyed pea.RESUME La cicadelle à ailes vitreuses, Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae), est un ravageur important de la vigne au Texas et en Californie. Cet insecte vecteur peut transmettre la bactérie qui cause la maladie de Pierce et il est considéré comme la menace la plus sérieuse à la production de raisins aux États Unis. Nous avons évalué la préference de quatre plantes hôtes pour l’alimentation et l’oviposition des femelles de H. vitripennis et de neuf plantes hôtes pour la croissance et le développement des embryons et nymphes en conditions contrôlées au laboratoire et en serre. La survie embryonnaire et l’émergence des premiers stades nymphaux ont dépassé 85% sur toutes les plantes hôtes à l’exception de la patate douce. Plus de 80% des nymphes ont atteint le stade adulte sur la patate douce, le niébé et l’aubergine. Le type de plante hôte a significativement affecté la durée de développement des nymphes. La probabilité de mortalité des nymphes de la cicadelle à ailes vitreuses était plus élevée au premier stade de leur développement sur certaines plantes hôtes comme le laurier Texan ou l’orange amère. La convenance nutritive des plantes hôtes et la texture de leurs feuilles qui variaient entre les espèces testées ont pu jouer un rôle déterminant pour le succès de développement des nymphes. Les femelles adultes étaient capables de s’alimenter sur des plantes ligneuses mais ont préféré le niébé et la patate douce. En captivité, en fonction du choix des plantes offertes, les femelles ont déposé davantage d’œufs sur l’hibiscus et le niébé.

Keywords: Auchenorrhyncha; Xylella fastidiosa; development; life cycle; reproduction

Document Type: Research Article

DOI: http://dx.doi.org/10.1603/008.102.0409

Publication date: July 1, 2009

More about this publication?
  • Annals of the Entomological Society of America is published in January, March, May, July, September, and November. Annals especially invites submission of manuscripts that integrate different areas of insect biology, and address issues that are likely to be of broad relevance to entomologists. Articles also report on basic aspects of the biology of arthropods, divided into categories by subject matter: systematics; ecology and population biology; arthropod biology; arthropods in relation to plant diseases; conservation biology and biodiversity; physiology, biochemistry, and toxicology; morphology, histology, and fine structure; genetics; and behavior.
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