+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Dissemination of bacteria antagonistic to erwinia amylovora by honey bees

Dissemination of bacteria antagonistic to erwinia amylovora by honey bees

Plant Disease 76(10): 1052-1056

Foraging honey bees (Apis mellifera) were tested for ability to disseminate bacteria antagonistic to Erwinia amylovora to apple and pear flowers in commercial orchards. The bacteria, Pseudomonas fluorescens and E. herbicola, previously known to provide biological control of fire blight, were placed on apple or cattail pollen at populations of 109 and 108 bacteria per gram, respectively. There was no significant decline in viable bacteria on either pollen over 3 wk at 4 C. These bacteria-treated pollens were placed in pollen inserts in the entrances of beehives. Honey bees emerging from these hives through bacteria-pollen mixtures acquired an average of 105 and 104 cfu per bee of P. fluorescens and E. herbicola, respectively. E. herbicola was detected on 92% of the apple flowers in a 2.6-ha orchard 2 days after the start of one study. In a pear orchard, 72% of the flowers within 7.6 m of the hive were colonized with P. fluorescens (average population of 102 cfu per flower) 8 days after the start of the study. Our study showed that bees can be efficient vectors of antagonistic bacteria for biological control of fire blight; disease control could not be evaluated because of frost and absence of disease in the test orchards.

(PDF emailed within 1 workday: $29.90)

Accession: 007218010

Download citation: RISBibTeXText

Related references

Effect of antagonistic bacteria on establishment of honey bee-dispersed Erwinia amylovora in pear blossoms and on fire blight control. Phytopathology 83(9): 995-1002, 1993

Dissemination of Erwinia amylovora by honey bee. Atti, Giornate fitopatologiche, Baselga di Pine, Trento, Italy, 7-11 aprile 2002, Volume 2: 553-556, 2002

Biocontrol of Erwinia amylovora with antagonistic bacteria. Bulletin OILB/SROP 25(10): 147-150, 2002

In vitro inhibition of Erwinia amylovora by some antagonistic bacteria. 2007

The efficiency of antagonistic bacteria and chemicals against Erwinia amylovora in vitro. Ochrana Rostlin 29(1): 31-39, 1993

Studies on the role of honeybees in the dissemination of the bacterium Erwinia amylovora and as bioindicators of its presence in the environment Studi sul ruolo delle api nella disseminazione del batterio Erwinia amylovora e come bioindicatori della presenza del fitopatogeno nellambiente. Atti del Congresso Nazionale Italiano di Entomologia, 192: 1309-1318, 2004

Biological control of fire blight with bacteria antagonistic to Erwinia amylovora. Proceedings d 100-102, 1976

Evaluation of honey bees as vectors of erwinia amylovora and pseudomonas fluorescens from hives to apple blossoms. Phytopathology 81(10): 1172, 1991

Dispersal of Erwinia amylovora and Pseudomonas fluorescens by honey bees from hives to apple and pear blossoms. Phytopathology 83(5): 478-484, 1993

Inhibition of Erwinia amylovora and potential antagonistic bacteria by essential oils and natural compounds. Acta Horticulturae (590): 315-317, 2002

Biological control of fireblight erwinia amylovora on ornamentals ii. investigation about the mode of action of the antagonistic bacteria. Journal of Phytopathology (Berlin) 116(4): 308-314, 1986

Simultaneous detection of Erwinia amylovora strains with and without plasmid pEA29 and of antagonistic bacteria by real-time PCR. Acta Horticulturae: 3, 513-515, 2008

Long distance dissemination of erwinia amylovora as resident bacteria in apparently healthy pear budwood pyrus communis. Phytopathology: 711, 1982

Biological control of fireblight (Erwinia amylovora (Burr.) Winslow et al.) on ornamentals. II. Investigation about the mode of action of the antagonistic bacteria. Journal of Phytopathology 116(4): 308-314, 1986

Genetic analysis of streptomycin-resistant (Sm(R)) strains of Erwinia amylovora suggests that dissemination of two genotypes is responsible for the current distribution of Sm(R) E. amylovora in Michigan. Phytopathology 101(2): 182-191, 2011