Control of Cladosporium echinulatum in carnation using bicarbonates and Trichoderma

Abstract

At the present time, fl oriculture occupies 2,124 ha, of which 180 ha are devoted to carnations. Almost all carnations produced are sold in the domestic market. Several diseases affect carnations, among them fairy-ring leaf spot (Cladosporium echinulatum), the most important foliar disease in Chile. Different control alternatives for fairy-ring spot were evaluated on the carnation cv. Sarinah in terms of disease incidence and severity. The study was performed in June-August 2003 with a commercial carnation planting in a greenhouse located in Champa (33º 49` S, 70º 45` W) that in previous growing seasons reported a high incidence of fairy-ring leaf spot. The treatments included ammonium bicarbonate (5 g L -1 ), sodium bicarbonate (5 g ּ L -1 ), ammonium bicarbonate + mineral oil Srpinguill (5 g L -1 + 10 mL ּ L -1 ), sodium bicarbonate + mineral oil Srpinguill (5 g L -1 + 10 mL ּ L -1 ), mineral oil Srpinguill (10 mL L -1 ), mancozeb (2 g ּ L -1 ), copper oxichloride (2 g ּ L -1 ), pentahydrated copper sulfate (1 mL L -1 ), Trichoderma virens strain Sherwood (Trichonativa) (5 mL ּ L -1 ) and an untreated control. Based on the results obtained, the most effective treatments were sodium bicarbonate and T. virens. Mancozeb, copper oxichloride, sodium bicarbonate + mineral oil Springuill, ammonium bicarbonate, mineral oil Springuill and pentahydrated copper sulfate were ineffective in controlling carnation fairy-ring leaf spot.

<i>Bacillus amyloliquefaciens</i> (VB7) with Diverse Antimicrobial Peptide Genes:A Potential Antagonist for the Management of Fairy Ring Spot in Carnations

“…Apart from the report of Sandoval et al 5 , no study has so far been reported for the management of fairy ring spot of carnations. According to the present results, Bacillus species with diverse AMP genes are good for the control of fairy ring spot of carnation.…”

“…In India the pathogen was first identified in Himachal Pradesh 4 . Till now there is only one report for the management of fairy ring spot 5 . The study reported that sodium bicarbonate and T. virens was effective in reducing disease incidence.…”

Effect of Some Bioagents on Cladosporium cucumerinum Causing Cladosporium Leaf Spot: A New Challenge in Watermelon Production in Egypt.

“…Bio-control agents such as C. globosum, G. catenulatum, T. harzianum, B. subtilis, and P. fluorescens have the ability to control cladosporium leaf spots (Huang 1978;Xiao and Li. 2013;Sandoval, et al, 2009 andWang et al, 2018) and enhance the plant growth (Compant et al, 2005).…”