Nematicidal activity of aqueous plant extracts on Xiphinema index

Nematicidal activity of aqueous extracts prepared from 30 plant species was screened on a Chilean population of Xiphinema index. The extracts were tested at a standard concentration of 1:4 W/V in fresh plant material, or 1:20 W/V in air-dried plant parts and at 25 and 12.5% of standard. Nematicidal...

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Veröffentlicht in:Nematologia mediterranea 2001-06, Vol.29 (1)
Hauptverfasser: Insunza, V. (Swedish Univ. of Agricultural Sciences, Uppsala. Dept. of Ecology and Crop Production Science), Aballay, E, Macaca, J. (Chile Univ., Santiago. Departamento de Sanidad Vegetal)
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creator Insunza, V. (Swedish Univ. of Agricultural Sciences, Uppsala. Dept. of Ecology and Crop Production Science)
Aballay, E
Macaca, J. (Chile Univ., Santiago. Departamento de Sanidad Vegetal)
description Nematicidal activity of aqueous extracts prepared from 30 plant species was screened on a Chilean population of Xiphinema index. The extracts were tested at a standard concentration of 1:4 W/V in fresh plant material, or 1:20 W/V in air-dried plant parts and at 25 and 12.5% of standard. Nematicidal activity was evaluated by nematode immobility after 24-48 hours of immersion in the extracts, followed by 24 hrs in distilled water for eventual recovery of movement. Most of the plant extracts showed nematicidal or nematostatic activity, but this effect decreased in the lowest concentration. Nematode immobility was observed at 12.5% of standard with extracts from Chenopodium ambrosioides (tops and roots), Cosmos bipinnatus (tops), Chamomilla recutita (flowers), Oxalis rosea (whole plant), Vestia lycioides (leaves) and Zinnia elegans (roots) [E' stata verificata l'attivita' nematocida di estratti acquosi preparati da 30 specie di piante su una popolazione cilena di Xiphinema index. Gli estratti sono stati saggiati alla concentrazione standard di 1:4 peso/volume in materiale vegetale verde o 1:20 peso/volume in parti di piante essiccate all'aria e al 25 e 12,5% dello standard. L'attivita' nematocida e' stata valutata tramite immobilita' del nematode dopo immersione della durata di 24-48 ore negli estratti, seguita da 24 h in acqua distillata per l'eventuale recupero della capacita' di movimento. La maggior parte di estratti vegetali ha evidenziato attivita' nematocida o nematostatica, ma questo effetto diminuiva alla concentrazione piu' bassa. L'immobilita' del nematode e' stata osservata al 12,5% dello standard con estratti di Chenopodium ambrosoides (parti epigee e radici), Cosmos bipinnatus (parti epigee), Chamomilla recutita (fiori), Oxalis rosea (pianta intera), Vestia lycioides e Zinnia elegans (radici)]
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Nematode immobility was observed at 12.5% of standard with extracts from Chenopodium ambrosioides (tops and roots), Cosmos bipinnatus (tops), Chamomilla recutita (flowers), Oxalis rosea (whole plant), Vestia lycioides (leaves) and Zinnia elegans (roots) [E' stata verificata l'attivita' nematocida di estratti acquosi preparati da 30 specie di piante su una popolazione cilena di Xiphinema index. Gli estratti sono stati saggiati alla concentrazione standard di 1:4 peso/volume in materiale vegetale verde o 1:20 peso/volume in parti di piante essiccate all'aria e al 25 e 12,5% dello standard. L'attivita' nematocida e' stata valutata tramite immobilita' del nematode dopo immersione della durata di 24-48 ore negli estratti, seguita da 24 h in acqua distillata per l'eventuale recupero della capacita' di movimento. La maggior parte di estratti vegetali ha evidenziato attivita' nematocida o nematostatica, ma questo effetto diminuiva alla concentrazione piu' bassa. 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(Swedish Univ. of Agricultural Sciences, Uppsala. Dept. of Ecology and Crop Production Science)</creatorcontrib><creatorcontrib>Aballay, E</creatorcontrib><creatorcontrib>Macaca, J. (Chile Univ., Santiago. Departamento de Sanidad Vegetal)</creatorcontrib><collection>AGRIS</collection><jtitle>Nematologia mediterranea</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Insunza, V. (Swedish Univ. of Agricultural Sciences, Uppsala. Dept. of Ecology and Crop Production Science)</au><au>Aballay, E</au><au>Macaca, J. (Chile Univ., Santiago. Departamento de Sanidad Vegetal)</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nematicidal activity of aqueous plant extracts on Xiphinema index</atitle><jtitle>Nematologia mediterranea</jtitle><date>2001-06</date><risdate>2001</risdate><volume>29</volume><issue>1</issue><issn>0391-9749</issn><abstract>Nematicidal activity of aqueous extracts prepared from 30 plant species was screened on a Chilean population of Xiphinema index. The extracts were tested at a standard concentration of 1:4 W/V in fresh plant material, or 1:20 W/V in air-dried plant parts and at 25 and 12.5% of standard. Nematicidal activity was evaluated by nematode immobility after 24-48 hours of immersion in the extracts, followed by 24 hrs in distilled water for eventual recovery of movement. Most of the plant extracts showed nematicidal or nematostatic activity, but this effect decreased in the lowest concentration. Nematode immobility was observed at 12.5% of standard with extracts from Chenopodium ambrosioides (tops and roots), Cosmos bipinnatus (tops), Chamomilla recutita (flowers), Oxalis rosea (whole plant), Vestia lycioides (leaves) and Zinnia elegans (roots) [E' stata verificata l'attivita' nematocida di estratti acquosi preparati da 30 specie di piante su una popolazione cilena di Xiphinema index. Gli estratti sono stati saggiati alla concentrazione standard di 1:4 peso/volume in materiale vegetale verde o 1:20 peso/volume in parti di piante essiccate all'aria e al 25 e 12,5% dello standard. L'attivita' nematocida e' stata valutata tramite immobilita' del nematode dopo immersione della durata di 24-48 ore negli estratti, seguita da 24 h in acqua distillata per l'eventuale recupero della capacita' di movimento. La maggior parte di estratti vegetali ha evidenziato attivita' nematocida o nematostatica, ma questo effetto diminuiva alla concentrazione piu' bassa. L'immobilita' del nematode e' stata osservata al 12,5% dello standard con estratti di Chenopodium ambrosoides (parti epigee e radici), Cosmos bipinnatus (parti epigee), Chamomilla recutita (fiori), Oxalis rosea (pianta intera), Vestia lycioides e Zinnia elegans (radici)]</abstract></addata></record>
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source EZB-FREE-00999 freely available EZB journals; Free E- Journals
subjects CHENOPODIUM AMBROSIOIDES
CHILE
CHILI
CILE
CONTROLLO DEI NEMATODI
COSMOS BIPINNATUS
ESPERIMENTI IN LABORATORIO
ESTRATTI VEGETALI
EXPERIMENTACION EN LABORATORIO
EXPERIMENTATION EN LABORATOIRE
EXTRACTOS VEGETALES
EXTRAIT D'ORIGINE VEGETALE
LABORATORY EXPERIMENTATION
NEMATICIDES
NEMATOCIDAS
NEMATOCIDE
NEMATOCIDI
NEMATODE CONTROL
OXALIS
PLANT EXTRACTS
TOSSICITA
TOXICIDAD
TOXICITE
TOXICITY
XIPHINEMA INDEX
ZINNIA
title Nematicidal activity of aqueous plant extracts on Xiphinema index
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