Original scientific paper

Etiological studies of appearance of necrosis of flowers and pear shoots in northwest Bosnia and Herzegovina

Vojislav Trkulja ; Poljoprivredni institut RS, Banja Luka
Gordana Brkljač ; Poljoprivredni institut RS, Banja Luka
Nada Zavišić ; Poljoprivredni institut RS, Banja Luka
Milutin Misimović ; Poljoprivredni institut RS, Banja Luka
Dragana Vukojević ; Poljoprivredni institut RS, Banja Luka
Jelena Mihić ; Poljoprivredni institut RS, Banja Luka
Milan Koščica ; Poljoprivredni institut RS, Banja Luka

Abstract

Individual plants with evident symptoms of necrosis and extinction of flowers and browses were noted in individual pear orchards on territory of northwest Bosnia and Herzegovina, during April, May and June in 2008. The percentage of affected plants varied and it was up to 20%, which caused significant economic damages. Based on the results obtained by studying pathogen, morphological, cultivating and biochemical- physiological characteristics of five chosen isolates, we can conclude that they all belong to phytopathogenic bacteria Pseudomonas syringae pv. syringae van Hal – which is the cause of bacterial spotting and wilting of herbaceous plants, canker and bacterial dying out of pear and other fruit- trees.

Keywords

pear; isolates of bacteria; pathogen; morphological; cultivating and biochemical- physiological characteristics; Pseudomonas syringae pv. syringae

Hrčak ID:

163475

URI

https://hrcak.srce.hr/163475

Publication date:

15.7.2009.

Article data in other languages: croatian

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