scholarly journals Insecticidal activity of endophytic actinomycetes isolated from Azadirachta indica against Myzus persicae

2018 ◽  
Vol 70 (2) ◽  
pp. 349-357 ◽  
Author(s):  
Yan Chen ◽  
Jamil Shafi ◽  
Maohai Li ◽  
Danni Fu ◽  
Mingshan Ji
Keyword(s):  
Insecticidal Activity ◽  
Azadirachta Indica ◽  
Myzus Persicae ◽  
Endophytic Actinomycetes

scholarly journals Insecticidal activity of citronella grass essential oil on Frankliniella schultzei and Myzus persicae

2013 ◽  
Vol 37 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Patrícia Fontes Pinheiro ◽  
Vagner Tebaldi de Queiroz ◽  
Vando Miossi Rondelli ◽  
Adilson Vidal Costa ◽  
Tiago de Paula Marcelino ◽  
...  
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Myzus Persicae ◽  
Green Peach Aphid ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Economic Losses ◽  
Frankliniella Schultzei ◽  
Wide Range ◽  
Citronella Grass

The thrips, Frankliniella schultzei, and green peach aphid, Myzus persicae, cause direct damage to plants of economic importance and transmit phytoviruses, causing large economic losses. Chemical constituents of essential oils present a wide range of biological activities. The aim of this work was to evaluate insecticidal activity of essential oil from citronella grass, Cymbopogon winterianus, on F. schultzei and M. persicae. This essential oil was obtained by steam distillation and components were identified by GC/FID and GC/MS. A Potter spray tower was used to spray insects with the essential oil. The major constituents are geraniol (28.62%), citronellal (23.62%) and citronellol (17.10%). Essential oil of C. winterianus at 1% (w v-1) causes mortality in F. schultzei and M. persicae at 34.3% and 96.9%, respectively. The LC50 value for M. persicae was 0.36% and LC90 0.66%. Thus, citronella grass essential oil at 1% (w v-1) is more toxic to M. persicae than F. schultzei. This essential oil shows promise for developing pesticides to manage M. persicae.

Identification of lipopeptide xantholysins from Pseudomonas sp. DJ15 and their insecticidal activity against Myzus persicae

2017 ◽  
Vol 47 (6) ◽  
pp. 337-343 ◽  
Author(s):  
Da Jung Lim ◽  
Si Young Yang ◽  
Mi Young Noh ◽  
Chul Won Lee ◽  
Jin Cheol Kim ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Myzus Persicae ◽  
Pseudomonas Sp

Insecticidal activity and feeding behavior of the green peach aphid, Myzus persicae, after treatment with nano types of pyrifluquinazon

2012 ◽  
Vol 15 (4) ◽  
pp. 533-541 ◽  
Author(s):  
Min Ah Kang ◽  
Mi Ja Seo ◽  
In Cheon Hwang ◽  
Chul Jang ◽  
Hyun Jin Park ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Insecticidal Activity ◽  
Myzus Persicae ◽  
Green Peach Aphid

Comparison of anti-feedant and insecticidal activity of nimbin and salannin photo-oxidation products with neem(Azadirachta indica) limonoids

2004 ◽  
Vol 60 (5) ◽  
pp. 459-464 ◽  
Author(s):  
Monique SJ Simmonds ◽  
Andrew P Jarvis ◽  
Shaun Johnson ◽  
Graeme R Jones ◽  
E David Morgan
Keyword(s):  
Insecticidal Activity ◽  
Azadirachta Indica ◽  
Oxidation Products ◽  
Photo Oxidation

scholarly journals Bioefficacy of Ethanolic Leaves Extract of Azadirachta indica Against Stored Product Insect Pest, Tribolium castaneum (Herbst.)

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Umar Aliyu ◽  
Sa’idu Kamal ◽  
Bashir Muhammad Abubakar ◽  
Isma’il Hassan
Keyword(s):  
Tribolium Castaneum ◽  
Insecticidal Activity ◽  
Azadirachta Indica ◽  
Filter Paper ◽  
Insect Pest ◽  
Darkling Beetle ◽  
Stored Product Pests ◽  
Time Period ◽  
Stored Product Pest ◽  
Percent Mortality

Tribolium castaneum is a species of beetle in the family tenebrionidae, the darkling beetle. Conventional insecticides used for controling stored product pests are expensive and arguably associated with various severe adverse side effects hence the need to develop botanical pesticides that are effective as alternative. Though Azadrachta indica has been used for the control of so many insects, review of the literature show no scientifically investigated report of its effectiveness against T. castaneum. This study was therefore designed to evaluate bioinsecticidal activity of ethanolic leaves extract of Azadirachta indica against stored Tribolium castaneum. Different concentrations (60, 70, 80, 90, and 100%) of ethanolic leaves extract of A. indica was applied on the filter paper and were allowed to dry for a reasonable time period. Control was maintained by treating the filter paper with water only. For examining the percent mortality, 15 adults was taken in the Petri dishes embedded with Whitman’s filter paper, covered with lid and tightened with scotch tape on both sides. The A. indica extracts at different concentrations tested showed insecticidal activity against T. castaneum. Further, phytochemical screening results showed that the A. indica extract have phytochemicals associated with insecticidal activity. The study has established that the ethanoloc extract A. indica is effective in managing stored product pest.

scholarly journals EFICIÊNCIA DO ÓLEO DE NIM (AZADIRACHTA INDICA A. JUSS) NO CONTROLE DE BREVICORYNE BRASSICAE (LINNAEUS, 1758) E MYZUS PERSICAE (SULZER, 1776) (HEMIPTERA: APHIDIDAE) EM COUVE-MANTEIGA BRASSICA OLERACEA LINNAEUS VAR. ACEPHALA

2008 ◽  
Vol 75 (2) ◽  
pp. 181-186
Author(s):  
G.A. Carvalho ◽  
N.M. Santos ◽  
E.C. Pedroso ◽  
A.F. Torres
Keyword(s):  
Brassica Oleracea ◽  
Azadirachta Indica ◽  
Myzus Persicae ◽  
Brevicoryne Brassicae ◽  
Agar Gel

RESUMO A planta de Nim (Azadirachta indica A. Juss) possui propriedades inseticidas e vem sendo amplamente utilizada como alternativa no controle de muitos artrópodes-praga. Sendo os pulgões Brevicoryne brassicae (Linnaeus, 1758) e Myzus persicae (Sulzer, 1776) pragas importantes para a cultura da couve-manteiga, avaliou-se neste trabalho a eficiência do extrato de óleo de Nim para o controle desses insetos. Dez pulgões adultos foram colocados em placas de Petri de 5 cm de diâmetro, contendo discos foliares de couve sobre uma camada de ágar-gel. Os insetos receberam as substâncias por meio de pulverizador manual, nas concentrações de 0,25%; 0,5%; 0,75%; 1,0% e 2,0%. Como testemunha positiva, utilizou-se imidaclopride 0,028% e negativa, apenas água destilada. As placas de Petri foram mantidas em câmara climatizada a 25 ± 2º C, umidade relativa de 70 ± 10% e fotofase de 12 horas. As avaliações da mortalidade dos pulgões e do número de ninfas sobreviventes oriundas de adultos tratados foram realizadas a 1h, 6h, 12h, 24h, 48h e 72h, após a pulverização dos compostos sobre os insetos. O óleo de Nim em todas as concentrações testadas foi eficiente no controle de B. brassicae, e para M. persicae somente nas concentrações de 1% e 2%.

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