Volume 20 (2011) Issue I
Entomologia Hellenica 20 (2011): 48-52.
Laboratory of Agricultural Zoology and Entomology, Agricultural University of Athens, 75 Iera Odos str., 118 55 Athens, Greece, Laboratory of Plant Breeding & Biometry, Agricultural University of Athens, 75 Iera Odos str., 118 55 Athens, Greece
In October 2007, the sorghum midge Stenodiplosis sorghicola (Coquillett) (Diptera: Cecido-myiidae) was recorded for the first time in Greece. Its occurrence was noticed in an experi-mental sorghum cultivar at Aliartos, near Athens, in Viotia region. Information on its morphol-ogy, biology and distribution is given.
Entomologia Hellenica 20 (2011): 45-47.
Technological Educational Institute of Thessaloniki, School of Agricultural, Technology, Laboratory of Entomology, P. O. Box 141, 57400 Sindos, Greece, Agricultural Entomologist, Emer. Professor Agricultural University of Athens, Greece
During an inspection survey concerning stored product insects in the mainland Greece the stored product fungus beetle Adistemia watsoni Wollaston (Coleoptera: Lathridiidae) was rec-orded to feed upon conidia of Penicillium developing on stored plums and corn. Information on its morphology and distribution is briefly given.
Entomologia Hellenica 20 (2011): 31-44.
Institute of Olive Tree and Subtropical Plants, Agrokipio, 731 00 Chania, Greece, 2Laboratory of Agricultural Zoology and Entomology, Agricultural University of Athens, 75 Iera Odos str., 118 55 Athens, Greece
Population fluctuation, percentage of parasitism and parasitoid species composition of Phyl-locnistis citrella Stainton (Lepidoptera: Gracillariidae) were studied in a citrus orchard with orange and mandarin trees in Chania (Greece), in 1999, three years after the release of the in-troduced parasitoids Citrostichus phyllocnistoides (Narayanan), Quadrastichus sp., Semielacher petiolatus (Girault), Cirrospilus quadristriatus (Subba Rao and Ramamani) and Ageniaspis citricola Logvinovskaya. Results showed that significantly more P. citrella indi-viduals per leaf were recorded on orange than on mandarin trees. Regarding the parasitoid complex composition, the exotic species C. phyllocnistoides, S. petiolatus and Quadrastichus sp., as well as the natives Pnigalio pectinicornis L. and Neochrysocharis formosa (Westwood) were recorded. Among them, C. phyllocnistoides was the most abundant, followed by S. petiolatus. The average percentage of parasitism reached 17% and 22% on orange and mandarin, respectively.
Entomologia Hellenica 20 (2011): 17-30.
Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt, Plant Protection Institute of Hungarian Academy of Sciences, Budapest H-1525, P.O. Box: 102, Hungary
A study has been conducted to monitor geographical spread of the white peach scale Pseudau-lacaspis pentagona (Targioni Tozzetti) (Hemiptera: Diaspididae) (WPS) and its parasitoid populations in 32 stops of the Hungarian highways (M0. M1, M3, M5 and M7) using phero-mone traps during 2009 and 2010. In addition to the data collected in the current study, previ-ous data were used to investigate the population trend of this pest from 2007 to 2010. The number of males recorded in traps placed on highways was much lower than in the sites close to urban areas (M0). Our data support results of previous studies which suggest the spreading of white peach scale by vehicles (“transport vector”). The significant decrease in the WPS male catches from 2007 to 2010 might indicate the lowering of the population levels of this pest in the area of the study. Eight hymenopterous parasitoid species were captured in pheromone traps. Coccophagus sp. was the predominate species in pheromone traps of WPS in M7, how-ever they may be associated with another coccid species. The identity of scale males and some parasitoids was proved by molecular markers.
Entomologia Hellenica 20 (2011): 3-16.
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115–336, Tehran, Iran,Benaki Phytopathological Institute, Department of Entomology, St. Delta 8, 145 61, Kifissia, Greece
Developmental rate of immature stages and age-specific fertility of females of codling moth at constant temperatures was modeled using non-linear models. The equations of Enkegaard, Analytis, and Bieri 1 and 2 were evaluated based on the value of adjusted R2 (R2adj) and Akaike information criterion (AIC) besides coefficient of determination (R2) and residual sum of squares (RSS). All models have goodness of fit to data especially for development [R2, R2adj, RSS and AIC ranged 0.9673-0.9917, 0.8601-0.9861, 0.08-6.7x10-4 and (-75.29) – (-46.26) respectively]. Optimum temperature (Topt) and upper threshold (Tmax) were calculated accurately (Topt and Tmax ranged 29.9-31.2oC and 35.9-36.7oC) by all models. Lower temperature threshold (Tmin) was calculated accurately by Bieri-1 model (9,9-10,8oC) whereas Analytis model (7,0-8,4oC) underestimated it. As far as fertility is concerned the respective values were better fitted near the optimum temperature (in 30oC) [R2 ,R2adj, RSS and AIC ranged 0,6966-0,7744, 0,5756-0,6455, 2,44-3,33 x10-4 and (-9,15)-7,15 respectively].
