Lethal and sublethal effects of Embelia ribes and two commercial pesticides on a generalist predator

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F18%3A43913458" target="_blank" >RIV/62156489:43410/18:43913458 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1111/jen.12488" target="_blank" >https://doi.org/10.1111/jen.12488</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jen.12488" target="_blank" >10.1111/jen.12488</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Lethal and sublethal effects of Embelia ribes and two commercial pesticides on a generalist predator

Popis výsledku v původním jazyce

Even as new substances show promise as biopesticides for controlling pests due to their natural properties and high effectiveness in inhibiting pests, their side effects on non-target organisms must nevertheless be evaluated before they can be included into integrated pest management systems. In this study, a crude extract from dried leaves of Embelia ribes was evaluated together with two commercial pesticides: azadirachtin (a natural product) and amitraz (a synthetic acaricide). We examined both lethal and sublethal effects on the predatory potential of the lynx spider Oxyopes lineatipes, which is among the most dominant predator in tropical agricultural agroecosystems. We found that the spider&apos;s mortality increased with rising concentration of both commercial products, azadirachtin and amitraz, but not with rising concentration of the extracts from E. ribes. The greatest mortality occurred when amitraz was used. That material caused almost 100% spider mortality in the doses recommended for field spraying. Azadirachtin significantly reduced the rate at which O. lineatipes captured prey, while there was no significant difference in capture rates among spiders exposed to a control treatment and the E. ribes treatment. Considering its absence of unfavourable impacts on O. lineatipes in terms of mortality and predatory activity, the plant extract from E. ribes shows promise as a new biopesticide material. In contrast, azadirachtin, which has been considered as safe for non-target organisms, exhibited slight lethal effect only in higher concentrations and strong sublethal effect by reducing spiders&apos; predation rate.

Název v anglickém jazyce

Lethal and sublethal effects of Embelia ribes and two commercial pesticides on a generalist predator

Popis výsledku anglicky

Even as new substances show promise as biopesticides for controlling pests due to their natural properties and high effectiveness in inhibiting pests, their side effects on non-target organisms must nevertheless be evaluated before they can be included into integrated pest management systems. In this study, a crude extract from dried leaves of Embelia ribes was evaluated together with two commercial pesticides: azadirachtin (a natural product) and amitraz (a synthetic acaricide). We examined both lethal and sublethal effects on the predatory potential of the lynx spider Oxyopes lineatipes, which is among the most dominant predator in tropical agricultural agroecosystems. We found that the spider&apos;s mortality increased with rising concentration of both commercial products, azadirachtin and amitraz, but not with rising concentration of the extracts from E. ribes. The greatest mortality occurred when amitraz was used. That material caused almost 100% spider mortality in the doses recommended for field spraying. Azadirachtin significantly reduced the rate at which O. lineatipes captured prey, while there was no significant difference in capture rates among spiders exposed to a control treatment and the E. ribes treatment. Considering its absence of unfavourable impacts on O. lineatipes in terms of mortality and predatory activity, the plant extract from E. ribes shows promise as a new biopesticide material. In contrast, azadirachtin, which has been considered as safe for non-target organisms, exhibited slight lethal effect only in higher concentrations and strong sublethal effect by reducing spiders&apos; predation rate.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Applied Entomology

ISSN

0931-2048

e-ISSN

—

Svazek periodika

142

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

428-436

Kód UT WoS článku

000429713800008

EID výsledku v databázi Scopus

2-s2.0-85040032646