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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/QK1920214" target="_blank" >QK1920214: Inovace systémů pěstování brambor v ochranných pásmech vodních zdrojů s omezenými vstupy pesticidů a hnojiv vedoucí ke snížení znečištění vody a zachování konkurenceschopnosti pěstitelů brambor.</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Plants

ISSN

2223-7747

e-ISSN

2223-7747

Svazek periodika

8

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000506648700082

EID výsledku v databázi Scopus

2-s2.0-85076930658