Ecological Studies of Osmia Cornuta (Latr.) (Hymenoptera, Megachilidae) Populations in Yugoslavia With Special Attention to Their Diapause

Krunic, M. D.; Stanisavljevic, Lj.; Brajkovic, M.; Tomanović, Željko; Radovic, Ivica

doi:10.17660/actahortic.2001.561.45

Cited by 13 publications

(17 citation statements)

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“…The solitary bee Osmia cornuta (Latr.) is known as excellent orchards pollinator across Europe where it is used for about 30 years already (Krunić et al , 2001; Bosch & Kemp 2002). The biology of this species is relatively known, as well as approaches for augmentation under natural conditions (Krunić & Stanisavljević, 2006 a , b ).…”

Section: Introductionmentioning

confidence: 99%

Microbiota associated with pollen, bee bread, larvae and adults of solitary beeOsmia cornuta(Hymenoptera: Megachilidae)

Lozo

Berić

Terzić-Vidojević

et al. 2015

Bull. Entomol. Res.

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Using cultivation-dependant method, we isolated 184 strains from fresh and old bee bread, pollen, larvae and adults of solitary bee Osmia cornuta. The 16S rDNA sequencing of 79 selected isolates gave the final species-specific identification of strains. Phylogenetic analysis indicated that microbiota isolated from five different sources were represented with 29 species within three different phyla, Firmicutes with 25 species, Actinobacteria with only one species and Proteobacteria with three species of Enterobacteriaceae. Bacterial biodiversity presented with Shannon-Wiener index (H') was highest in the alimentary tract of adults and old bee bread (H' = 2.43 and H' = 2.53, respectively) and in the same time no dominance of any species was scored. On the contrary, results obtained for Simpson index (D) showed that in pollen samples the dominant species was Pantoea agglomerans (D = 0.42) while in fresh bee bread that was Staphylococcus sp. (D = 0.27). We assume that microbial diversity detected in the tested samples of solitary bee O. cornuta probably come from environment.

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Section: Introductionmentioning

confidence: 99%

Microbiota associated with pollen, bee bread, larvae and adults of solitary beeOsmia cornuta(Hymenoptera: Megachilidae)

Lozo

Berić

Terzić-Vidojević

et al. 2015

Bull. Entomol. Res.

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“…Current management of C. krombeini focuses on treatment of nests including stripping of O. cornifrons cocoons from nests (Krunić et al. 2005) and cleaning the nests with bleach (Bosch and Kemp 2001), heat treatment (Sekita and Yamada 1993), and chemical treatment (old nests) to remove C. krombeini (Krunić et al. 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Batra (1998) stated that O. cornifrons populations can increase three to five times each year under optimal conditions, and their populations can be decreased to half of the previous year’s population by heavy infestation of C. krombeini . Currently, manual removal of cocoons of O. cornifrons from nests (Bosch and Kemp 2001) and treatment with endosulfan (Krunić et al. 2001) is being practised, but this method may not be feasible for conventional propagation of O. cornifrons using cardboard tubes or reeds for nests in commercial orchards.…”

Section: Introductionmentioning

confidence: 99%

Nest‐to‐nest dispersal of Chaetodactylus krombeini (Acari, Chaetodactylidae) associated with Osmia cornifrons (Hym., Megachilidae)

Park

Kondo

White

et al. 2009

J Applied Entomology

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A cleptoparasitic mite, the Krombein's hairy-footed mite, Chaetodactylus krombeini Baker (Acari, Chaetodactylidae) became a key pest that affects the maintenance and propagation of Osmia spp. (Hym., Megachilidae), thus disrupting orchard pollination in the United States. Although hypopi, the dispersal stages of C. krombeini, are known to disperse from nest to nest by hitchhiking on Osmia cornifrons adults, we observed that they might disperse in other ways too in commercial orchards. This study was conducted to elucidate the nest-to-nest dispersal mechanisms of C. krombeini hypopi. We tested three potential dispersal mechanisms of C. krombeini other than phoresy by O. cornifrons: (1) dispersal by walking from nest to entrances of nearby nests, (2) dispersal by walking from nest to nest through emergence holes made by parasitic wasps on nests, and (3) dispersal by being unloaded and uptaken to and from flowers by O. cornifrons. Results of this study showed that C. krombeini hypopi could disperse from a nest to nearby nests by walking through nest entrances and holes made by parasitic wasps of O. cornifrons. Although 0.06% of C. krombeini hypopi on blueberry flowers were picked up by O. cornifrons, they were not able to be unloaded to flowers from O. cornifrons and no hypopi could inhabit or survive on blueberry flowers. This indicated no or very low chance of C. krombeini hypopi dispersal via blueberry flowers. Based on our findings of C. krombeini dispersal ecology, development of C. krombeini control strategies are discussed in this article. *There were no statistical differences between nests with and without pollen provisions based on paired Student's t-tests at a = 0.05 (SAS Institute 2008). Average (AESD) number of C. krombeini hypopi per nest and percentage (AESD) of nests infested with C. krombeini hypopi are presented in this table.

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“…The total number of cocoons per monitored shelter was about 10,000 to 15,000 (Table 1). Storing of cocoons at appropriate temperatures during the period of hibernation is of great importance not only for emergence dynamics, but also for individual viability, on which both successful pollination and augmentation depend (Bosch & Blas, 1994;Kruni et al, 2001). Temperatures in the cold room where cocoons were stored ranged from 2-6°C, and RH was about 50-60%.…”

Section: Methodsmentioning

confidence: 99%

“…However, even though we carefully selected such places over a long period of time (several years), we did not succeed in increasing the population to a level higher than about 50,000. It seemed at the time that dispersion of females was a significant constraint on population during this period (Bosch, 1994;Kruni et al, 2001). We chose to test this assumption by studying augmentation of O. cornuta and O. rufa in the vicinity of Belgrade (Serbia) by examining whether, alternatively, the sex ratio of both species in the managed populations is a factor important for augmentation.…”

Section: Introductionmentioning

confidence: 99%

Augmentation of managed populations of Osmia cornuta and O. rufa (Hymenoptera: Megachilidae) in Southeastern Europe

Krunic¹,

Stanisavljević²

2006

Eur. J. Entomol.

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Abstract. We describe augmentation of managed populations of Osmia cornuta and O. rufa in the vicinity of Belgrade (Serbia). Annual augmentation of O. cornuta populations was more than five-fold during the six years of our study. This was achieved by watering the soil near the Osmia augmentation shelters used for nest building. However, populations of O. rufa under the same treatment only doubled annually. Data are also presented on sex ratios in these managed populations, the sex ratio being an important factor in increasing population numbers and raising pollination efficacy. Sex ratio values (% : &) varied from 1.46 : 1 to 3.22 : 1 in the populations of O. cornuta and from 1.35 : 1 to 2.68 : 1 in those of O. rufa.

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Ecological Studies of Osmia Cornuta (Latr.) (Hymenoptera, Megachilidae) Populations in Yugoslavia With Special Attention to Their Diapause

Cited by 13 publications

References 0 publications

Microbiota associated with pollen, bee bread, larvae and adults of solitary beeOsmia cornuta(Hymenoptera: Megachilidae)

Microbiota associated with pollen, bee bread, larvae and adults of solitary beeOsmia cornuta(Hymenoptera: Megachilidae)

Nest‐to‐nest dispersal of Chaetodactylus krombeini (Acari, Chaetodactylidae) associated with Osmia cornifrons (Hym., Megachilidae)

Augmentation of managed populations of Osmia cornuta and O. rufa (Hymenoptera: Megachilidae) in Southeastern Europe

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