Showing papers in "Acta entomologica Serbica in 2020"
TL;DR: The first record of O. commmuna from Serbia is reported, a natural enemy and a potential biocontrol agent of Ambrosia artemisiifolia L., an important invasive weed, both for agricultural crops and public health.
Abstract: Ophraella communa LeSage, 1986 (Coleoptera: Chrysomelidae, Galerucinae) is a North American chrysomelid successfully spreading through Europe in recent years. It is a natural enemy and a potential biocontrol agent of Ambrosia artemisiifolia L., an important invasive weed, both for agricultural crops and public health (Vrbnicanin, et al., 2008). In Europe, O. communa was first detected in Italy (Boriani et al., 2013), after which it has spread to Switzerland (Muller-Scharer et al., 2014), Slovenia (Seljak, 2017) and Croatia (Zadravec et al., 2019). Here we report the first record of O. commmuna from Serbia. Ambrosia artemisiifolia L. (Asteraceae) plants were surveyed during 2020 in 7 localities in Serbia (Fruska gora - Ležimir, Sid, Sremska Mitrovica, Bela Crkva, Belgrade, Donji Milanovac, Valjevo, Stara planina). Plants were surveyed in the fields, samples were gathered and then inspected in the laboratory.
5 citations
TL;DR: Two species (Hercostomus plagiatus Loew, 1857 and Poecilobothrus nobilitatus Linnaeus, 1767) are new records for Turkey dolichopodid fauna.
Abstract: Field surveys were carried out in the provinces of Balikesir, Bilecik, Bursa, Canakkale, Edirne, Istanbul, Izmit, Kirklareli, Sakarya, Tekirdag and Yalova in the Marmara region of Turkey between 2009 and 2010. As a result of identification of the collected specimens, 17 genera and 31 species, belonging to Diaphorinae, Dolichopodinae, Hydrophorinae, Rhaphininae, Sciapodinae, Sympycninae, Xanthochlorinae subfamilies, were determined. Two species (Hercostomus plagiatus Loew, 1857 and Poecilobothrus nobilitatus Linnaeus, 1767) are new records for Turkey dolichopodid fauna.
2 citations
TL;DR: Nine aphid species (Hemiptera: Aphididae), mainly found in the southeastern part of the country, were determined as new records for Serbia, and all species are of Palearctic distribution and seem to be monoecious.
Abstract: Nine aphid species (Hemiptera: Aphididae), mainly found in the southeastern part of the country, were determined as new records for Serbia. They belong to three subfamilies: Aphis passeriniana (Del Guercio, 1900); A. podagrariae Schrank, 1801; A. salviae Walker, 1852; Brachyunguis tamaricis (Lichtenstein, 1885); Smiela fusca Mordvilko, 1948; Staticobium limonii Contarini, 1847 and Uroleucon pseudobscurum (Hille Ris Lambers, 1967) from the subfamily Aphidinae; Drepanosiphum oregonensis Granovsky, 1939 from the subfamily Drepanosiphinae and Pterocomma jacksoni Theobald, 1921 from the subfamily Pterocommatinae. With the inclusion of these nine records, a total of 383 aphids have been found so far in Serbia. This represents about 70% of the species of the total aphid fauna expected to be found on plants in Serbia. All species are of Palearctic distribution and seem to be monoecious.
2 citations
TL;DR: In this paper, the authors determined the insecticidal activity and antioxidant activity of aqueous extracts of Nerium oleander (Apocynaceae) leaves and Peganum harmala (Zygophyllaceae) seeds.
Abstract: In this work, we determined the insecticidal activity and antioxidant activity of aqueous extracts of Nerium oleander (Apocynaceae) leaves and Peganum harmala (Zygophyllaceae) seeds, two well-known Algerian medicinal plants. Four concentrations of each extract were applied in total randomization by spraying directly on the eggs and larvae of Ectomyelois ceratoniae (Zeller, 1879) (Lepidoptera: Pyralidae) under laboratory conditions. Our findings revealed that eggs hatching after four days were not affected by the aqueous extract, with a rate of 54% of hatching eggs in both control and treated eggs. Additionally, toxicity by contact on larvae was not evident and the mortality percentage did not exceed 8%, regardless of the extract plant and concentration. Phytochemical screening showed a slight presence of terpenes and saponins and an absence of alkaloids. However, polyphenols were present in medium concentrations in the aqueous extracts of both plants. The antioxidant activities of N. oleander and P. harmala extracts were found to be 71.80 and 72.94%, respectively. Total phenolic content (TPC) and total flavonoid content (TFC) of the studied extracts were 50.69 mg gallic acid equivalent (GAE)/100 g dry weight (DW) and 3.55 in terms of quercetin equivalent (QE)/100 g DW, respectively, in N. oleander. In P. harmala, the TPC and TFC were 52.30 mg GAE/100 g DW and 3.49 mg QE/100 g DW, respectively. Our study clearly shows the limited insecticidal effect of the aqueous extracts, although they showed an interesting antioxidant potential, which could help to decrease the incidence of oxidative stress-induced damage.
2 citations
TL;DR: A. heegeri is a polyphagous herbivore and has the status of an economically significant species in the Middle East because it causes damage in pistachio plantations as discussed by the authors.
Abstract: The species Acrosternum heegeri Fieber, 1861 is a well-known member of the Mediterranean fauna in Europe and until recently was not recorded outside its natural range. In recent years, the presence of stable populations of the species in Budapest has been confirmed, and the first findings on the territory of Serbia are from 2013, when several overwintering adults were found under the bark of deciduous trees in Novi Sad. Since 2017, active individuals have been recorded throughout the season, for now mainly from the area of Vojvodina. This bug is probably conquering new territories by transporting people and goods, but we assume that climate change is also responsible for establishing stable populations in new environments. The paper presents the findings of the species A. heegeri in Serbia, which were taken from the Alciphron database on insects in Serbia. A. heegeri is a polyphagous herbivore and has the status of an economically significant species in the Middle East because it causes damage in pistachio plantations.
2 citations
TL;DR: It was established that the pine processionary moth prefers fresh, deep and fertile soils.
Abstract: Available geo-referenced data about the pine processionary moth (PPM) attacks in Stara Zagora province in Central Bulgaria were used to study the relationships between the frequency of attacks and soil conditions. It was established that the PPM prefers fresh, deep and fertile soils.
1 citations
TL;DR: Grasshoppers diversity was studied in three sites at different altitude in Jijel district (North East Algeria) and abundance increased with the altitude while diversity was not correlated with increasing altitude since diversity indices values were high in medium altitude.
Abstract: Grasshoppers (Orthoptera: Caelifera) diversity were studied in three sites at different altitude in Jijel district (North East Algeria). The insects were captured with sweep net weekly from April to August 2016. It appears that 30 Grasshopper species belonging to 4 families and 11 subfamilies were identified amongst 712 individuals. Acrididae species (25) were the most frequent. The species richness was higher at medium altitude (23 species) and high altitude (22 species) than at low altitude (18 species). Species abundance distribution fitted the Broken stick model at low and high altitude while it fitted the Geometric or Motumura model at medium altitude. Grasshopper abundance increased with the altitude while diversity was not correlated with increasing altitude since diversity indices values were high in medium altitude.
1 citations
TL;DR: Three species of grass moths (Crambidae) were recorded for the first time in Croatia, showing the lack of Microlepidoptera surveys and the need for further visits to those areas.
Abstract: Three species of grass moths (Crambidae) were recorded for the first time in the country. Udea alpinalis and Crambus ericella were recorded on the peaks Guslica and Snježnik in Gorski kotar region, while Catoptria pyramidellus was recorded on several different mountain chains across the country. The record of three montane species in Croatia shows the lack of Microlepidoptera surveys and the need for further visits to those areas.
1 citations
TL;DR: It is suggested that the application of a green spectrum in insectariums could help in increasing egg production in E. kuehniella.
Abstract: This paper examines the effects of different light spectra on the number of eggs of Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) as a general host of biological control agents. Six distinct spectra of light, ranging from 395 nm to 625 nm, were examined in laboratory conditions. Green and red spectra with ranges of 520-525 nm and 620-625 nm caused the highest and the lowest numbers of eggs, respectively. Additionally, the effects of time on the mean egg load of E. kuehniella were also found to be significant at five days. The implications of the current results are discussed below and suggest that the application of a green spectrum in insectariums could help in increasing egg production.