Results 91 to 100 of about 496 (136)

First interception of olive psyllid Euphyllura olivina (Costa, 1839) (Hemiptera: Psylloidea) in the East Palaearctic region

open access: closedPhytoparasitica, 2021
During the post-entry quarantine inspection of olive seedlings imported from the Netherlands, the olive psyllid, Euphyllura olivina (Costa, 1839), was accidentally intercepted in June 2020. This study reports the presence of the olive psyllid for the first time in the East Palaearctic region, South Korea.
Geonho Cho
exaly   +3 more sources

Contributions to the reproductive biology of olive psylla Euphyllura olivina Costa (Hom., Psyllidae)

open access: closedZeitschrift Für Angewandte Entomologie, 1985
AbstractSeasonal reproductive development was investigated in females of olive psylla. Samples of females taken from two olive orchards in a 2 yr period were dissected for monitoring reproductive status. Five distinct stages of ovariole formation and development were recorded.
T. M. MUSTAFA, Y. H. NAJJAR
exaly   +3 more sources

Efficacy of a hydroxytyrosol-rich preparation from olive mill wastewater for control of olive psyllid, Euphyllura olivina, infestations

open access: closedCrop Protection, 2011
Abstract Olive mill wastewater (OMW) is a problematic by-product in Mediterranean countries. Despite this, it is a raw material that is an unfailing source of bioactive molecules. A hydroxytyrosol-rich preparation (HRP) (49.6% weight:dry weight) was extracted from fresh OMW using a hydrolysis and post-hydrolysis purification process.
Thabet Yangui   +2 more
exaly   +3 more sources

New innovation in order to recover the polyphenols of olive mill wastewater extracts for use as a biopesticide against the Euphyllura olivina and Aphis citricola

open access: closedResearch on Chemical Intermediates, 2012
Results from physicochemical analysis of olive mill wastewater (OMW) have shown that total suspended solids (5.170 to 0.658 g/L), chemical oxygen demand (124.400 ± 25.442 g/L), biochemical oxygen demand (60.593 ± 6.276), total organic carbon (3.317 ± 0.350 g/L), and Kjeldahl nitrogen (0.126 ± 0.044 g/L) far exceed discharge standards.
A Zarrouk, Abdelmajid Soulaymani
exaly   +3 more sources

TEMPERATURE EFFECT ON THE BIOLOGY OF EUPHYLLURA OLIVINA COSTA

open access: closedActa Horticulturae, 2002
M. Ksantini, T. Jardak, A. Bouain
exaly   +3 more sources

Factors affecting the distribution of Euphyllura olivina Costa (Hom., Psyllidae) on olive

open access: closedZeitschrift für Angewandte Entomologie, 1984
AbstractThe adult population of E. olivina showed two generations annually in mid‐May and in end June. The summer generation caused a significant economic loss to olive fruit. In all observations, nymphal infestation was mainly found close to the fruits. The spatial distribution of nymphal infestation was related to the heat of sunrays. New measures of
T. M. Mustafa
openaire   +2 more sources

Seasonal Changes in Fat and Water Content in Field Populations of Olive Psylla Euphyllura olivina Costa (Homoptera Psyllidae)

open access: closedInternational Journal of Tropical Insect Science, 1989
The seasonal changes in water content and fat content of olive psylla, Euphyllura olivina in the field were investigated in two successive years. The overwintering adults of olive psylla had more fat than spring and summer generation adults. There was a steady increase in % fat contents of females from mid-October to early January.
T. M. Mustafa
openaire   +2 more sources

[Effect of the length of the stay of the male on the reproduction of the olive psylla Euphyllura olivina Costa (Homoptera, Psyllidae)].

open access: closedArchives de l'Institut Pasteur de Tunis, 1985
We have studied, in Euphyllura olivina Costa, 1839, the incidence that the absence or presence of males can have on the fecundity of females their longevity, the duration of spawning and other biotic parameters... So we have pointed out that: In all the cases, from beginning of experimental infestations of olive--tree sprouts to the beginning of eggs ...
Awatef Taktak
openaire   +2 more sources

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