Altindag, M. | Sahin, M. | Esitken, A. | Ercisli, S. | Guleryuz, M. | Donmez, M.F. | Şahin, Fikrettin

Article | 2006 | Biological Control38 ( 3 ) , pp.369 - 372

In 2002 and 2003, a study was conducted to determine the effect of bacterial strains, Burkholdria OSU 7, Bacillus OSU 142, and Pseudomonas BA 8, on biological control of brown rot disease (Monilinia laxa Ehr.) on apricot cv. Haci{dotless}haliloglu in Malatya province of Turkey. Apricot orchard at full blooming stage was inoculated with conidial suspension (1 × 106 spores/ml) of M. laxa Ehr. After inoculation, two apricot trees for each application were treated with each of the three biological control agents (Burkholdria gladii OSU 7, Bacillus subtilis OSU 142, and Pseudomonas putida BA 8) by spraying (1 × 109 cfu/ml) on inoculated . . .branches. Disease incidence was evaluated for untreated (control 1) and four different treatment groups including commercial disease management (control 2, positive control: 3% Bourdox in fall, 50% Cupper at pink flower, 30 g/100 l Corus at first blooming, and 300 g/100 l Captan at last blooming stage) and treatments including each of the three bacterial strains (OSU 7, OSU 142, and BA 8). The results showed that disease incidence for negative control (control 1) was 9.94, which was significantly higher than disease incidence for commercial application (2.57%) or bacterial treatments (2.82-5.00%) in the first year. In 2003, the lowest disease incidence observed in OSU 7 treatment (6.80%), while disease incidence rate for positive control and negative control were 9.45% and 28.46%, respectively. This result may suggest that OSU 7 has potential to be used as biopesticide for effective management of brown rot disease on apricot. © 2006 Elsevier Inc. All rights reserved Daha fazlası Daha az

Recep, K. | Fikrettin, S. | Erkol, D. | Cafer, E.

Article | 2009 | Biological Control50 ( 2 ) , pp.194 - 198

In this study, a total of 17 Plant Growth Promoting Rhizobacteria (PGPR) strains, consisting of eight different species (Bacillus subtilis, Bacillus pumilus, Burkholderia cepacia, Pseudomonas putida, Bacillus amyloliquefaciens, Bacillus atrophaeus, Bacillus macerans and Flavobacter balastinium), were tested for antifungal activity in in vitro (on Petri plate) and in vivo (on potato tuber) conditions against Fusarium sambucinum, Fusarium oxysporum and Fusarium culmorum cause of dry rot disease of potato. All PGPR strains had inhibitory effects on the development of at least one or more fungal species on Petri plates. The strongest an . . .tagonism was observed in B. cepacia strain OSU-7 with inhibition zones ranging from 35.33 to 47.37 mm. All PGPR strains were also tested on tubers of two potato cultivars 'Agria' and 'Granola' under storage conditions. Only B. cepacia strain OSU-7 had significant effects on controlling potato dry rot caused by three different fungi species on the two potato cultivars. There were no significant differences in rot diameters among the treatments in comparison to the negative control (with water). This is the first study showing that B. cepacia has great potential to be used as effective biocontrol agent of Fusarium dry rot of potatoes (F. oxysporum and F. culmorum) under storage conditions. © 2009 Elsevier Inc. All rights reserved Daha fazlası Daha az

Kotan, R. | Şahin, Fikrettin | Demirci, E. | Eken, C.

Erratum | 2011 | Biological Control59 ( 3 ) , pp.194 - 198

[No abstract available]