Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry

B.A. Latorre, R. Torres, T. Silva, and K. Elfar. 2013. Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry. Cien. Inv. Agr. 40(3): 537-545. Economically, blueberry (Vaccinium corymbosum) has become a very importan...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Latorre,Bernardo A, Torres,René, Silva,Tatiane, Elfar,Karina
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2013
Materias:	Botryosphaeria canker biological control boric acid ascorbic acid Vaccinium corymbosum
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300007
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-16202013000300007
record_format	dspace
spelling	oai:scielo:S0718-162020130003000072014-09-08Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberryLatorre,Bernardo ATorres,RenéSilva,TatianeElfar,Karina Botryosphaeria canker biological control boric acid ascorbic acid Vaccinium corymbosum B.A. Latorre, R. Torres, T. Silva, and K. Elfar. 2013. Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry. Cien. Inv. Agr. 40(3): 537-545. Economically, blueberry (Vaccinium corymbosum) has become a very important fruit crop in Chile, and stem canker (Neofusicoccum parvum) has frequently been observed as a major disease. The symptoms are characterized by partial or total death of the foliage associated with extensive reddish-brown canker lesions at the base of the stems. Pruning wounds appear to be the main infection route. In this study, fungicide pastes and biological control agents were evaluated for their effectiveness as pruning wound-protectants against N. parvum. The mycelium of N. parvum was highly sensitive to benomyl, tebuconazole, and iprodione in vitro, with median effective concentrations (EC50) of 0.15-0.25, 0.26-0.33, and 0.52-0.68 μg-mL-1, respectively. The pastes formulated with 0.1% benomyl, 0.5% tebuconazole, and 0.06% iprodione also provided considerable protection of pruning wounds against N. parvum on the stems of Duke blueberries under field conditions. However, pyraclostrobin, with relatively high EC50 values (>2 ng-mL-1) in vitro, was largely ineffective in vivo at a 0.1% concentration, and 75% citrus extract (Citrus SL), Bacillus subtilis QST713 (Serenade Max), and Trichoderma spp. (Trichonativa) were also ineffective. Additionally, pastes formulated with 5% boric acid, although effective, were phytotoxic.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.40 n.3 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300007en10.4067/S0718-16202013000300007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Botryosphaeria canker biological control boric acid ascorbic acid Vaccinium corymbosum
spellingShingle	Botryosphaeria canker biological control boric acid ascorbic acid Vaccinium corymbosum Latorre,Bernardo A Torres,René Silva,Tatiane Elfar,Karina Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry
description	B.A. Latorre, R. Torres, T. Silva, and K. Elfar. 2013. Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry. Cien. Inv. Agr. 40(3): 537-545. Economically, blueberry (Vaccinium corymbosum) has become a very important fruit crop in Chile, and stem canker (Neofusicoccum parvum) has frequently been observed as a major disease. The symptoms are characterized by partial or total death of the foliage associated with extensive reddish-brown canker lesions at the base of the stems. Pruning wounds appear to be the main infection route. In this study, fungicide pastes and biological control agents were evaluated for their effectiveness as pruning wound-protectants against N. parvum. The mycelium of N. parvum was highly sensitive to benomyl, tebuconazole, and iprodione in vitro, with median effective concentrations (EC50) of 0.15-0.25, 0.26-0.33, and 0.52-0.68 μg-mL-1, respectively. The pastes formulated with 0.1% benomyl, 0.5% tebuconazole, and 0.06% iprodione also provided considerable protection of pruning wounds against N. parvum on the stems of Duke blueberries under field conditions. However, pyraclostrobin, with relatively high EC50 values (>2 ng-mL-1) in vitro, was largely ineffective in vivo at a 0.1% concentration, and 75% citrus extract (Citrus SL), Bacillus subtilis QST713 (Serenade Max), and Trichoderma spp. (Trichonativa) were also ineffective. Additionally, pastes formulated with 5% boric acid, although effective, were phytotoxic.
author	Latorre,Bernardo A Torres,René Silva,Tatiane Elfar,Karina
author_facet	Latorre,Bernardo A Torres,René Silva,Tatiane Elfar,Karina
author_sort	Latorre,Bernardo A
title	Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry
title_short	Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry
title_full	Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry
title_fullStr	Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry
title_full_unstemmed	Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry
title_sort	evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (neofusicoccum parvum) of blueberry
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000300007
work_keys_str_mv	AT latorrebernardoa evaluationoftheuseofwoundprotectantfungicidesandbiologicalcontrolagentsagainststemcankerneofusicoccumparvumofblueberry AT torresrene evaluationoftheuseofwoundprotectantfungicidesandbiologicalcontrolagentsagainststemcankerneofusicoccumparvumofblueberry AT silvatatiane evaluationoftheuseofwoundprotectantfungicidesandbiologicalcontrolagentsagainststemcankerneofusicoccumparvumofblueberry AT elfarkarina evaluationoftheuseofwoundprotectantfungicidesandbiologicalcontrolagentsagainststemcankerneofusicoccumparvumofblueberry
_version_	1714202152116682752

Evaluation of the use of wound-protectant fungicides and biological control agents against stem canker (Neofusicoccum parvum) of blueberry

Ejemplares similares