Effectiveness of dry formulations ofEnterobacter agglomeransfor control of crown and root rot of apple trees

1997 ◽  
Vol 19 (4) ◽  
pp. 397-401 ◽  
Author(s):  
R.S. Utkhede ◽  
E.M. Smith
Keyword(s):  
Root Rot ◽  
Apple Trees ◽  
Crown And Root Rot

EVALUATION OF ALFALFA CULTIVARS FOR REACTION TO CROWN AND ROOT ROT

1985 ◽  
Vol 65 (1) ◽  
pp. 95-98 ◽  
Author(s):  
R. MICHAUD ◽  
C. RICHARD
Keyword(s):  
Disease Severity ◽  
Root Rot ◽  
Dry Matter ◽  
Forage Yield ◽  
Dry Matter Yield ◽  
Crown And Root Rot ◽  
Disease Free

Fourteen alfalfa cultivars were grown for 2 yr at three locations and evaluated for forage dry matter yield and crown and root rot. Significant differences were found among cultivars for dry matter yield. All cultivars were affected by crown and root rot, most cultivars showing between 20 and 30% of infected tissues. Differences were observed among as well as within the cultivars for disease severity. The frequency of disease-free plants was less than 1.3% of the plants evaluated. Correlation between root rot index and forage yield was −0.87 [Formula: see text] when data were pooled over years and locations.Key words: Lucerne, root rot, cultivar, yield

scholarly journals Soil Inoculum Production, Survival, and Infectivity of the Boxwood Blight Pathogen, Calonectria pseudonaviculata

Plant Disease ◽  
2015 ◽  
Vol 99 (12) ◽  
pp. 1689-1694 ◽  
Author(s):  
Norm Dart ◽  
Chuanxue Hong ◽  
Caryn Allen Craig ◽  
J. T. Fry ◽  
Xinran Hu
Keyword(s):  
Root Rot ◽  
Soil Inoculum ◽  
Foliar Blight ◽  
High Inoculum ◽  
Inoculum Production ◽  
Foliar Pathogen ◽  
Leaves And Roots ◽  
Crown And Root Rot ◽  
Stem Cankers

Boxwood blight caused by Calonectria pseudonaviculata is typically expressed as a foliage disease with aboveground symptoms including defoliation, dieback and formation of dark narrow stem cankers. Whether this pathogen behaves like other Calonectria spp. and has a significant soil phase in the epidemiology of boxwood blight is not known. In this study we observed experimentally that (1) the boxwood blight pathogen consistently forms microsclerotia in artificially inoculated leaves and roots of Buxus spp., (2) soil artificially inoculated with conidia and microsclerotia of this pathogen can cause foliar blight, (3) conidia and microsclerotia can remain viable in soil for up to 3 and at least 40 weeks, respectively (4) and the pathogen can cause crown and root rot to plants only when roots and crowns are directly exposed to relatively high inoculum levels. Our results suggest that C. pseudonaviculata is primarily a foliar pathogen with a potentially epidemiologically significant soil phase.

scholarly journals Rhizospheric bacteria as potential biocontrol agents against Fusarium wilt and crown and root rot diseases in tomato

2021 ◽  
Author(s):  
Md. Masudur Rahman Khalil ◽  
Rosario Alicia Fierro-Coronado ◽  
Ofelda Peñuelas-Rubio ◽  
Alma Guadalupe Villa-Lerma ◽  
Rigoberto Plascencia-Jatomea ◽  
...  
Keyword(s):  
Fusarium Wilt ◽  
Root Rot ◽  
Biocontrol Agents ◽  
Rhizospheric Bacteria ◽  
Crown And Root Rot
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