United forces of botanical oils: Efficacy of neem and karanja oil against colorado potato beetle under laboratory conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F19%3A00005549" target="_blank" >RIV/00027006:_____/19:00005549 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2223-7747/8/12/608/pdf" target="_blank" >https://www.mdpi.com/2223-7747/8/12/608/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/plants8120608" target="_blank" >10.3390/plants8120608</a>

Result language

angličtina

Original language name

United forces of botanical oils: Efficacy of neem and karanja oil against colorado potato beetle under laboratory conditions

Original language description

Neem and karanja oil are the most promising botanical insecticides in crop protection nowadays. Given that information about the insecticidal abilities of these oils is lacking, the aim was to explore the effects of neem and karanja oil binary mixtures. The insecticidal activity of (neem oil), Rock Effect (Agro CS a.s., Česká Skalice, Czech Republic) (karanja oil), and their binary mixes (at 1:1, 1:2, and 2:1 volume ratios) against the larvae of the Colorado potato beetle (CPB; Leptinotarsa decemlineata) was studied. In our bioassays, a synergistic effect of the mixtures, which was dose-dependent, was observed for the first time against this pest. The most effective blend was the 1:1 ratio. Its efficacy was more or less the same as, or even greater than, the neem oil alone. The LC50 of neem oil two days after application was (0.075 g·L-1) and the LC50 of the mixture was (0.065 g·L-1). The LC50 of karanja oil was (0.582 g·L-1), which was much higher than the LC50 of neem oil. The LC90 of neem oil five days after application was (0.105 g·L-1) and the LC90 of the mixture was (0.037 g·L-1). The LC90 of karanja oil was (1.032 g·L-1). The results demonstrate that it is possible to lower the doses of both oils and get improved efficacy against CPB larvae; nevertheless, further verification of the results in field conditions is necessary.

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

10611 - Plant sciences, botany

Project

<a href="/en/project/QK1920214" target="_blank" >QK1920214: Innovation of potato growing systems in buffer zones of water resources with reduced pesticide and fertilizer inputs resulting in water pollution reduction and preservation of potato growers’ competitiveness</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

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

Name of the periodical

Plants

ISSN

2223-7747

e-ISSN

2223-7747

Volume of the periodical

8

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

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UT code for WoS article

000506648700082

EID of the result in the Scopus database

2-s2.0-85076930658