Env Exp Biol (2014) 12: 89

Orginal Articles

Evaluation of spruce biomass extract for control of grey mould (Botrytis cinerea) in field-grown strawberries

Jūlija Volkova^1*, Valda Laugale², Līga Lepse², Anna Baženova¹, Līga Jankevica³, Māris Daugavietis⁴

¹Latvian Plant Protection Research Centre, Struktoru 14A, Rīga LV-1039, Latvia
²Pure Horticultural Research Centre, Abavas 2, Pūre, Tukuma novads LV–3124, Latvia
³Institute of Biology, University of Latvia, Miera 3, Salaspils LV–2169, Latvia
⁴Latvian Forest Research Institute “Silava”, Rīgas 111, Salaspils LV-2169, Latvia
^*Corresponding author, E-mail: julija.volkova@laapc.lv

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Abstract

The aim of the present study was to evaluate the efficacy of spruce biomass extract to control grey mould (Botrytis cinerea) development in field-grown strawberries. The study was performed in a commercial strawberry plantation for two years and also according to EPPO guidlines. In contrast to the laboratory investigation, the efficiency of spruce biomass extract for grey mould control on strawberries in field conditions was not convincing, possibly due to weather conditions that did not favour mould development. A better level of control was observed when lower concentrations of spruce biomass extract were used. The only treatment that significantly reduced the amount of rotted fruits, compared to untreated control was 0.5% spruce biomass extract used once a week in 2013. However, significant reduction of leaf spot diseases by the extract applications in 1 and 2% concentrations was observed.

Key words: Botrytis cinerea, Fragaria • ananassa, fruit rot, spruce, strawberry yield.

Env Exp Biol (2014) 12: 89–93

DOI: http://doi.org/10.22364/eeb

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Faculty of Biology, University of Latvia
				Hard copy: ISSN 1691–8088 On-line: ISSN 2255–9582 Env Exp Biol (2014) 12: 89–93 DOI: https://doi.org/10.22364/eeb
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