Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing

In 2008 and 2009 the effects of quassin and neoquassin (oxygenated triterpenes) on apple sawfly (Hoplocampa testudinea Klug, 1814) were studied. In the Czech Republic, monitoring was carried out in small-plot trials and in one laboratory experiment. The extract containing quassin and neoquassin was...

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Main Authors: V. Psota, J. Ouředníčková, V. Falta
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2010-12-01
Series:Horticultural Science
Subjects:
Online Access:https://hortsci.agriculturejournals.cz/artkey/hor-201004-0004_control-of-hoplocampa-testudinea-using-the-extract-from-quassia-amara-in-organic-apple-growing.php
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author V. Psota
J. Ouředníčková
V. Falta
author_facet V. Psota
J. Ouředníčková
V. Falta
author_sort V. Psota
collection DOAJ
description In 2008 and 2009 the effects of quassin and neoquassin (oxygenated triterpenes) on apple sawfly (Hoplocampa testudinea Klug, 1814) were studied. In the Czech Republic, monitoring was carried out in small-plot trials and in one laboratory experiment. The extract containing quassin and neoquassin was made by boiling wood chips of a tropical shrub Quassia amara L. (Sapindales: Simaroubaceae). The experimental dosages were 3, 4.5, 6, and 9.25 kg of wood chips/ha. Spray treatment with the quassia extract was carried out just before most larvae hatched out. It was statistically proven that the extract from the wood of Q. amara reduced the apple sawfly infestation of fruitlets. Extract in the dosage corresponding to 3-4.5 kg of quassia wood chips for 1/ha appeared as optimal. The efficacy of these dosages was approximately 40-50%, and the efficacy above 80% was record.
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spelling doaj.art-b8c50a83216349b89adf951b30f99e062023-02-23T03:34:36ZengCzech Academy of Agricultural SciencesHorticultural Science0862-867X1805-93332010-12-0137413914410.17221/76/2009-HORTSCIhor-201004-0004Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growingV. Psota0J. Ouředníčková1V. Falta2Faculty of Agronomy, Mendel University in Brno, Brno, Czech RepublicResearch and Breeding Institute of Pomology Holovousy, Ltd., Holovousy, Czech RepublicCrop Research Institute, Praha-Ruzyně, Czech RepublicIn 2008 and 2009 the effects of quassin and neoquassin (oxygenated triterpenes) on apple sawfly (Hoplocampa testudinea Klug, 1814) were studied. In the Czech Republic, monitoring was carried out in small-plot trials and in one laboratory experiment. The extract containing quassin and neoquassin was made by boiling wood chips of a tropical shrub Quassia amara L. (Sapindales: Simaroubaceae). The experimental dosages were 3, 4.5, 6, and 9.25 kg of wood chips/ha. Spray treatment with the quassia extract was carried out just before most larvae hatched out. It was statistically proven that the extract from the wood of Q. amara reduced the apple sawfly infestation of fruitlets. Extract in the dosage corresponding to 3-4.5 kg of quassia wood chips for 1/ha appeared as optimal. The efficacy of these dosages was approximately 40-50%, and the efficacy above 80% was record.https://hortsci.agriculturejournals.cz/artkey/hor-201004-0004_control-of-hoplocampa-testudinea-using-the-extract-from-quassia-amara-in-organic-apple-growing.phpapple orchardorganic farmingmalus domesticapest controlapple sawfly
spellingShingle V. Psota
J. Ouředníčková
V. Falta
Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing
Horticultural Science
apple orchard
organic farming
malus domestica
pest control
apple sawfly
title Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing
title_full Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing
title_fullStr Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing
title_full_unstemmed Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing
title_short Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growing
title_sort control of hoplocampa testudinea using the extract from quassia amara in organic apple growing
topic apple orchard
organic farming
malus domestica
pest control
apple sawfly
url https://hortsci.agriculturejournals.cz/artkey/hor-201004-0004_control-of-hoplocampa-testudinea-using-the-extract-from-quassia-amara-in-organic-apple-growing.php
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