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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Format: | Article |
Language: | English |
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Czech Academy of Agricultural Sciences
2010-12-01
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Series: | Horticultural Science |
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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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institution | Directory Open Access Journal |
issn | 0862-867X 1805-9333 |
language | English |
last_indexed | 2024-04-10T08:24:18Z |
publishDate | 2010-12-01 |
publisher | Czech Academy of Agricultural Sciences |
record_format | Article |
series | Horticultural Science |
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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