survey performed in 2009 within 52 Tunisian olive groves, locatedin 17 different olive-growing sites, revealed the occurrence of six scale insects onolives. The identified species were: the armoured scales Aspidiotus nerii Bouché,Lepidosaphes ulmi (L.), and Parlatoria oleae (Colvée), the soft scales Saissetiaoleae (Olivier) and Filippia follicularis (Targioni Tozzetti) and the mealybug speciesPeliococcus cycliger (Leonardi). The soft scale F. follicularis is a new recordfor the Tunisian insect fauna. A mong these species, S. oleae was the predominantscale insect occurring throughout olive groves of northeastern Tunisia, whereas themealybug P. cycliger was by far the most abundant species within olives grovesof the Northwest region of Tunisia. However, P. oleae was the least abundant species,being present in only one olive-growing site in northeastern Tunisia. L arvaeof the noctuid moth Eublemma scitula (Rambur) were reported feeding on S. oleaeand the coccinellid Chilocorus bipustulatus L . was found feeding on both S. oleaeand A. nerii. The two hymenopteran species Scutellista cyanea Motschulsky and Metaphycus spp. were recorded as the main parasitoids of S. oleae.
Una ricerca effettuata nel 2009 in 52 oliveti della Tunisia, situati in 17 località,harilevato la presenza di 6 specie di cocciniglie infestanti gli olivi. Si è trattato di Aspidiotusnerii Bouché, Lepidosaphes ulmi (L.), Parlatoria oleae (Colvée), Saissetiaoleae (Olivier), Filippia follicularis (Targioni Tozzetti) e di Peliococcus cycliger(Leonardi. F. follicularis è un nuovo reperto per l’entomofauna della Tunisia. S. oleaeè risultata predominante e presente in particolare negli oliveti del nord-ovest dellaTunisia, mentre P. cycliger è stata la specie più frequente negli oliveti del nord-est.Invece, P. oleae è risultata la specie meno abbondante essendo presente solo in unoliveto del nord-ovest. Viene riferito che le larve del Nottuide Eublemma scitula(Rambur) si nutrono di S. oleae, mentre il coccinellide Chilocorus bipustulatusL. è stato osservato nutrirsi sia di S. oleae, che di Aspidiotus nerii. Gli ImenotteriScutellista cyanea Motschulsky and Metaphycus spp. sono stati osservati comecomuni parassitoidi di S. oleae.
A survey of scale insects (Hemiptera: Coccoidea) occurring on olives in Tunisia
SUMA, POMPEO;RUSSO, Agatino
2012-01-01
Abstract
survey performed in 2009 within 52 Tunisian olive groves, locatedin 17 different olive-growing sites, revealed the occurrence of six scale insects onolives. The identified species were: the armoured scales Aspidiotus nerii Bouché,Lepidosaphes ulmi (L.), and Parlatoria oleae (Colvée), the soft scales Saissetiaoleae (Olivier) and Filippia follicularis (Targioni Tozzetti) and the mealybug speciesPeliococcus cycliger (Leonardi). The soft scale F. follicularis is a new recordfor the Tunisian insect fauna. A mong these species, S. oleae was the predominantscale insect occurring throughout olive groves of northeastern Tunisia, whereas themealybug P. cycliger was by far the most abundant species within olives grovesof the Northwest region of Tunisia. However, P. oleae was the least abundant species,being present in only one olive-growing site in northeastern Tunisia. L arvaeof the noctuid moth Eublemma scitula (Rambur) were reported feeding on S. oleaeand the coccinellid Chilocorus bipustulatus L . was found feeding on both S. oleaeand A. nerii. The two hymenopteran species Scutellista cyanea Motschulsky and Metaphycus spp. were recorded as the main parasitoids of S. oleae.File | Dimensione | Formato | |
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A survey of scale insects (Hemiptera Coccoidea) occurring on olives in Tunisia.pdf
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