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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10618 - Ecology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Journal of Applied Entomology

ISSN

0931-2048

e-ISSN

—

Volume of the periodical

142

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

428-436

UT code for WoS article

000429713800008

EID of the result in the Scopus database

2-s2.0-85040032646