possibility of environmentally-safe casing soil disinfection for control of cobwebdisease of button mushroom
Clicks: 147
ID: 168091
2014
The soil-borne pathogen Cladobotryum dendroides causes cobweb disease of button
mushroom (Agaricus bisporus) and its significant yield losses. Casing soil disinfection by toxic
formaldehyde is a widespread practice. The aim of this study was to investigate the potential of
two environmentally friendly substances, colloidal silver and peracetic acid, against C. dendroides.
Their biological efficacy (impact on mushroom yield), effectiveness (disease control) and type
of interactions between them and the fungicide prochloraz-manganese were evaluated.
Black peat/lime casing soil was applied to a colonized substrate with the white button
mushroom strain 737, then inoculated with C. dendroides and treated with the fungicide
prochloraz-manganse and two environmentally friendly disinfectants based on peracetic
acid and colloidal silver. The effects of fungicides on mushroom productivity were evaluated
as biological efficacy and calculated as a ratio of fresh weight of total mushroom yield to
the weight of dry substrate. Fungicide effectiveness and synergy factor were calculated by
Abbott’s (1925) formula. Tests for synergism between prochloraz-manganese and both other
substances were performed using Limpel’s formula.
The highest biolgical efficacy, exceeding 92.00, was achieved in treatments with prochlorazmanganese,
applied alone or in combination with both other disinfectants. The highest
effectiveness of 93.33% was attained in treatments with peracetic acid combined with
prochloraz-manganese. Trials against cobweb disease revealed a synergistic reaction between
the fungicide and peracetic acid and antagonistic between the fungicide and colloidal silver.
Peracetic acid provided better disease control, compared to colloidal silver applied alone or in
combination with the fungicide. Based on these findings, peracetic acid should be recomended
as an environmentally friendly casing soil disinfectant against cobweb disease of A. bisporus.
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Authors | ;Ivana Potočnik;Emil Rekanović;Miloš Stepanović;Svetlana Milijašević-Marčić;Biljana Todorović;Ljiljana Nikolić-Bujanović;Milan Čekerevac |
Journal | jurnal informatika upgris |
Year | 2014 |
DOI | 10.2298/PIF1404283P |
URL | |
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