... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in... more ... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in the two-year period 1989-90. ... Field studies were conducted in Italy from 1989-90 to determine the population dynamics of Balaninus nucum [Curculio nucum] on hazelnuts, the relationship ...
In our paper we evaluated a statistical-mathematic forecast model on the seriousness of the infes... more In our paper we evaluated a statistical-mathematic forecast model on the seriousness of the infestation of Bactrocera oleae (Rossi) which is in some years particularly favourable to Tripetidae, and can cause considerable qualitative and quantitative damage. Three cultivars which represent the Albanian olive-growing environment were taken into consideration: “Boçi”, “Kalinjot” and “Ulliri i Bardhë i Tiranës”. It was necessary to do treatment only for the Boçi cultivar while the Ulliri i Bardhë i Tiranës and Kalinjot were not treated because the intervention threshold (Z) was not reached. At harvest, Ulliri i Bardhë i Tiranës and Kalinjot showed slight levels of infestation (about 7%) and the oils obtained were of outstanding quality (extra virgin). The untreated Boçi cultivar, instead, had 67% infested drupes at harvest and the oil extracted showed serious defects and an acidity of 1.97. 2010 was marked by a high intensity of infestation detected in the Boçi cultivar that has allowed...
... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in... more ... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in the two-year period 1989-90. ... Field studies were conducted in Italy from 1989-90 to determine the population dynamics of Balaninus nucum [Curculio nucum] on hazelnuts, the relationship ...
Pinus nigra (black pine) is a Mediterranean taxonomic complex (including different subspe-cies), ... more Pinus nigra (black pine) is a Mediterranean taxonomic complex (including different subspe-cies), with a discontinuous distribution. The southernmost part of its range is in North Africa, in Morocco and Algeria, where it is present as P. nigra subsp. mauretanica. Currently, an extremely limited number of trees of this subspecies still persist within its natural range, giving this taxon an outstanding ecological importance. These residual stands are threatened by many biotic and abiotic factors, putting at risk the survival of this subspecies in its natural habitat. This paper reports for the first time the presence of Eulachnus tuberculostemmatus (Hemiptera: Aphididae: Lachninae) in Algeria, and its infestation on P. nigra subsp. mauretanica. This insect was detected in three sites of the Djurdjura National Park in May 2012 and identified in February 2016. The aphid seems to be responsible for needle discol-oration and premature senescence, symptoms observed since spring 2008 on the infested pines. These clusters of P. nigra subsp. mauretanica trees are protected by park regulations, and given their conservation status further investigations into this pest species, and other biotic and abiotic factors that may threaten this important tree, are required.
... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in... more ... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in the two-year period 1989-90. ... Field studies were conducted in Italy from 1989-90 to determine the population dynamics of Balaninus nucum [Curculio nucum] on hazelnuts, the relationship ...
In our paper we evaluated a statistical-mathematic forecast model on the seriousness of the infes... more In our paper we evaluated a statistical-mathematic forecast model on the seriousness of the infestation of Bactrocera oleae (Rossi) which is in some years particularly favourable to Tripetidae, and can cause considerable qualitative and quantitative damage. Three cultivars which represent the Albanian olive-growing environment were taken into consideration: “Boçi”, “Kalinjot” and “Ulliri i Bardhë i Tiranës”. It was necessary to do treatment only for the Boçi cultivar while the Ulliri i Bardhë i Tiranës and Kalinjot were not treated because the intervention threshold (Z) was not reached. At harvest, Ulliri i Bardhë i Tiranës and Kalinjot showed slight levels of infestation (about 7%) and the oils obtained were of outstanding quality (extra virgin). The untreated Boçi cultivar, instead, had 67% infested drupes at harvest and the oil extracted showed serious defects and an acidity of 1.97. 2010 was marked by a high intensity of infestation detected in the Boçi cultivar that has allowed...
... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in... more ... Captures of adults and infestation analysis carried out in the area of Lake Vico (Viterbo) in the two-year period 1989-90. ... Field studies were conducted in Italy from 1989-90 to determine the population dynamics of Balaninus nucum [Curculio nucum] on hazelnuts, the relationship ...
Pinus nigra (black pine) is a Mediterranean taxonomic complex (including different subspe-cies), ... more Pinus nigra (black pine) is a Mediterranean taxonomic complex (including different subspe-cies), with a discontinuous distribution. The southernmost part of its range is in North Africa, in Morocco and Algeria, where it is present as P. nigra subsp. mauretanica. Currently, an extremely limited number of trees of this subspecies still persist within its natural range, giving this taxon an outstanding ecological importance. These residual stands are threatened by many biotic and abiotic factors, putting at risk the survival of this subspecies in its natural habitat. This paper reports for the first time the presence of Eulachnus tuberculostemmatus (Hemiptera: Aphididae: Lachninae) in Algeria, and its infestation on P. nigra subsp. mauretanica. This insect was detected in three sites of the Djurdjura National Park in May 2012 and identified in February 2016. The aphid seems to be responsible for needle discol-oration and premature senescence, symptoms observed since spring 2008 on the infested pines. These clusters of P. nigra subsp. mauretanica trees are protected by park regulations, and given their conservation status further investigations into this pest species, and other biotic and abiotic factors that may threaten this important tree, are required.
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Papers by B. Paparatti