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Summary:

Published in Phytoprotection 90: 117-120

A trial involving the mass propagation of Argania spinosa cuttings was established following two protocols: in mini-bouturathèques without mist and in a greenhouse under mist. Symptoms of petiole necrosis, foliar yellowing and abundant black acervuli were observed under both protocols. These symptoms were responsible for a 90% mortality rate in the mini-bouturathèques while under the mist treatment premature fatal necrosis of the apical buds resulted in 100% mortality. The disease's causal agent, Pestalotiopsis clavispora, was identified on the basis of its morphological characteristics and by molecular analysis. Alternating weekly teatments of systemic and contact fungicides resulted in a 41% success rate in controlling this pathogen, described for the first time on argan cuttings.

Sector(s): 

Forests

Catégorie(s): 

Scientific Article

Theme(s): 

Forestry Research, Forests, Seeds and Forest Seedlings Production

Departmental author(s): 

Author(s):

BAKRY, Mustapha , Guy BUSSIÈRES, Mohammed S. LAMHAMEDI, Hank A. MARGOLIS, Debra C. STOWE, Mohamed ABOUROUH, Martine BLAIS and Jean A. BÉRUBÉ

Year of publication:

2011

Keyword(s):

bouturage, diagnostic, prévention, arganier, production de plants, Argania spinosa, Pestalotiopsis clavispora, article scientifique de recherche forestière, production de semences et de plants, seeds and forest seedlings production, argan, cutting, diagnosis, prevention