scholarly journals Fungicide tolerance of <i>Trichoderma asperelloides</i> and <i>T. harzianum strains</i>

2011 ◽  
Vol 02 (03) ◽  
pp. 301-307 ◽  
Author(s):  
Adriana Paola Chaparro ◽  
Lilliana Hoyos Carvajal ◽  
Sergio Orduz
Keyword(s):  
Fungicide Tolerance

Sensitivity of field populations of Ascochyta rabiei to chlorothalonil, mancozeb and pyraclostrobin fungicides and effect of strobilurin fungicides on the progress of ascochyta blight of chickpea

2007 ◽  
Vol 87 (4) ◽  
pp. 937-944 ◽  
Author(s):  
K. F. Chang ◽  
H. U. Ahmed ◽  
S. F. Hwang ◽  
B. D. Gossen ◽  
S. E. Strelkov ◽  
...  
Keyword(s):  
Ascochyta Blight ◽  
Ascochyta Rabiei ◽  
Growth Media ◽  
Single Spore ◽  
Fungicide Application ◽  
Strobilurin Fungicides ◽  
Cultural Measures ◽  
Fungicide Tolerance ◽  
Total Crop ◽  
Fungicide Insensitivity

Chickpea production faces a major challenge from ascochyta blight (Ascochyta rabiei), a devastating disease that can cause total crop loss. To assess the effect of repeated fungicide application on disease progress, strobilurin fungicides, primarily alternating pyraclostrobin and azoxystrobin treatments, were applied up to five times per year in each of 2 yr. A single application or two early applications reduced blight severity. A third application resulted in additional benefits in 1 of 2 yr, but additional applications did not reduce severity further. To monitor for fungicide tolerance in populations of A. rabiei, 66 single- spore isolates were collected and grown on growth media amended with chlorothalonil, mancozeb, or pyraclostrobin. Insensitivity to one or more of the fungicides was detected in 49 (74%) of the isolates. Based on the effect on conidial germination, insensitivity to pyraclostrobin or chlorothalonil was observed in 26 of 37 isolates (70%). Repeated fungicide application may be selecting for insensitive isolates of the pathogen; fungicide application should be combined with cultural measures to control ascochyta blight. Key words: Fungicide insensitivity, Ascochyta rabiei

Toxicity of abiotic stressors toFusariumspecies: Differences in hydrogen peroxide and fungicide tolerance

2014 ◽  
Vol 61 (2) ◽  
pp. 189-208 ◽  
Author(s):  
Emese Nagygyörgy ◽  
Barbara Kovács ◽  
Éva Leiter ◽  
Márton Miskei ◽  
István Pócsi ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Abiotic Stressors ◽  
Fungicide Tolerance
Sign in / Sign up

Export Citation Format

Share Document