scholarly journals Chemical variation and insecticidal activity of Lippia javanica (Burm. f.) Spreng essential oil against Sitophilus zeamais Motschulsky

2017 ◽  
Vol 110 ◽  
pp. 75-82 ◽  
Author(s):  
John F. Kamanula ◽  
Steven R. Belmain ◽  
David R. Hall ◽  
Dudley I. Farman ◽  
David J. Goyder ◽  
...  
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Chemical Variation ◽  
Lippia Javanica

scholarly journals Insecticidal and repellent activity of the essential oil of Cinnamomum camphora var. linaloolifera Y. Fujita (Ho-Sho) and Cinnamomum camphora (L.) J Presl. var. hosyo (Hon-Sho) on Sitophilus zeamaisMots. (Coleoptera, Curculionedae)

2015 ◽  
Vol 17 (4 suppl 1) ◽  
pp. 769-773 ◽  
Author(s):  
R.L. CANSIAN ◽  
V. ASTOLFI ◽  
R.I. CARDOSO ◽  
N. PAROUL ◽  
S.S. ROMAN ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Repellent Activity ◽  
Cinnamomum Camphora ◽  
Preference Index ◽  
Lethal Doses ◽  
Repellency Activity

ABSTRACT The aim of this work was to evaluate the insecticidal and repellency activity of the essential oil of Cinnamomum camphora var. linaloolifera Y. Fujita (Ho-Sho) and Cinnamomumcamphora (L.) J Presl.var. hosyo (Hon-Sho), against the Sitophilus zeamais in maize grains. The essential oils were obtained by hydrodistillation and analyzed by GC-MS.The insecticidal activity was determined by the toxicity of different concentrations of essential oils during 24 hours of contact with the insects, in the absence of feed substrate. The Bioassays of repellency were conducted with lethal doses (LD50,LD25,and LD12.5) obtained from insecticidal bioassay. In order to compare the treatments the preference index (PI) was employed. The analysis of the essential oils of Cinnamomum camphora leaves indicated 68% of camphor and 9% of linalool for the variation Hon-Sho and 95% of linalool to the variation Ho-Sho. The variation Ho-Sho presented greatest insecticidal activity than the variation Hon-Sho against the Sitophiluszeamais, with LD50 of 0.35 μL/cm2, whereas in the variation Hon-Sho the ratewas 0.48 μL/cm2. However, considering only the concentrations of linalool and camphor of Ho-Sho and Hon-Sho, the lethal doses’ evaluation of these compounds were similar. The values of the preference index ranged from -0.3 to -0.8 for thevariation Ho-Sho and -0.2 to -0.7 for the variation Hon-Sho. The essential oils evaluated in this work showed repellent activity against Sitophiluszeamais in vitro and in trials performed in mini-silos.

scholarly journals LEAF ESSENTIAL OIL FROM Croton pulegiodorus Baill SHOWS INSECTICIDAL ACTIVITY AGAINST Sitophilus zeamais Motschulsky

2019 ◽  
Vol 32 (2) ◽  
pp. 354-363
Author(s):  
TACIANA LOPES DA SILVA ◽  
CARLOS ROMERO FERREIRA DE OLIVEIRA ◽  
CLÁUDIA HELENA CYSNEIROS MATOS ◽  
CÉSAR AUGUSTE BADJI ◽  
RENILSON PESSOA MORATO
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Resistance Ratio ◽  
Fumigant Activity ◽  
Leaf Essential Oil ◽  
Susceptibility Patterns ◽  
Lc50 And Lc90

ABSTRACT The present study aimed to assess the effects of the essential oil of Croton pulegiodorus Baill on eight populations of Sitophilus zeamais Motschulsky with different patterns of susceptibility to synthetic insecticides. Populations of S. zeamais were obtained from Sete Lagoas-MG, Jacarezinho-PR, Bom Conselho-PE, Garanhuns-PE, Jupi-PE, Lajedo-PE, São João-PE and Serra Talhada-PE. To estimate the lethal concentrations (LC50 and LC90) of oil for each population, fumigation tests were performed. The susceptibility of S. zeamais to the essential oil varied among populations. Garanhuns and Bom Conselho was considered the susceptibility patterns, presenting the lowest LC50 (3.40 μL L-1 of air) and LC90 (9.60 μL L-1 of air) for the essential oil, respectively. The population from Jupi exhibited the highest LC50 (14.49 μL L-1 of air) and LC90 (19.60 μL L-1 of air) for C. pulegiodorus. The resistance ratio ranged from 1.84 for the São João to 4.26 for the Jupi population. Thus, the essential oil of C. pulegiodorus showed fumigant activity, causing mortality in all S. zeamais populations used.

scholarly journals Insecticidal Activity of Melaleuca alternifolia Essential Oil and RNA-Seq Analysis of Sitophilus zeamais Transcriptome in Response to Oil Fumigation

PLoS ONE ◽  
2016 ◽  
Vol 11 (12) ◽  
pp. e0167748 ◽  
Author(s):  
Min Liao ◽  
Jin-Jing Xiao ◽  
Li-Jun Zhou ◽  
Yang Liu ◽  
Xiang-Wei Wu ◽  
...  
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Rna Seq ◽  
Melaleuca Alternifolia

scholarly journals Insecticidal Components from the Essential Oil of Chinese Medicinal Herb,Ligusticum chuanxiongHort

2011 ◽  
Vol 8 (1) ◽  
pp. 300-304 ◽  
Author(s):  
Sha Sha Chu ◽  
Guo Hua Jiang ◽  
Zhi Long Liu
Keyword(s):  
Essential Oil ◽  
Silica Gel ◽  
Insecticidal Activity ◽  
Chromatographic Separation ◽  
Medicinal Herb ◽  
Sitophilus Zeamais ◽  
Contact Toxicity ◽  
Chinese Medicinal Herb ◽  
Ligusticum Chuanxiong ◽  
Main Components

Essential oil of Chinese medicinal herb,Ligusticum chuanxiongdried rhizome was found to possess insecticidal activity against maize weevils, Sitophilus zeamais. The main components ofL. chuanxiongessential oil wereZ-3-butylidenephthalide (20.56%),Z-ligustilide (19.61%), 4-terpinenol (8.82%), 4-vinylguaiacol (6.81%) andα-selinene (6.01%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate three compounds namely 3-butylidenephthalide,Z-ligustilide and 4-vinylguaiacol.Z-liqustilide andZ-3-butylidenephthalide showed pronounced toxicity againstS. zeamais(LD50= 10.23 and 15.81 μg/adult respectively) and were more toxic than 4-vinylguaiacol (LD50= 63.75 μg/adult). The crude essential oil also possessed contact toxicity against S. zeamais (LD50= 13.09 μg/adult).

Insecticidal activity of the essential oil of Piper corcovadensis leaves and its major compound (1‐butyl‐3,4‐methylenedioxybenzene) against the maize weevil, Sitophilus zeamais

2021 ◽  
Author(s):  
Camila Soledade de Lira Pimentel ◽  
Bheatriz Nunes de Lima Albuquerque ◽  
Suyana Karolyne Lino Rocha ◽  
André Severino Silva ◽  
Alana Bittencourt Vieira Silva ◽  
...  
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Sitophilus Zeamais ◽  
Maize Weevil

scholarly journals Constituents and Insecticidal Activity of Deinbollia pinnata Essential Oil

2016 ◽  
Vol 11 (12) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Sunkanmi E. Sotubo ◽  
Oladipupo A. Lawal ◽  
Adesola A. Osunsami ◽  
Isiaka A. Ogunwande
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Insecticidal Activity ◽  
Volatile Component ◽  
Sitophilus Zeamais ◽  
Total Volatile ◽  
Hexahydrofarnesyl Acetone ◽  
Geranyl Acetone ◽  
Percentage Yield

The volatile constituents and insecticidal activity of the essential oil obtained by hydrodistillation of pulverized air-dried leaves of Dehinbollia pinnata Schum. & Thonn (Sapindaceae) growing in Nigeria were studied. The constituents of the oil were analyzed by gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). The percentage yield of the oil was 0.04% (v/w). Fourteen compounds were characterized, representing 94.0% of the total volatile component of the oil. The major constituents of the oil were hexahydrofarnesyl acetone (37.5%), farnesyl acetone (17.2%) and geranyl acetone (14.6%). The essential oil, at a concentration of 120 mg/mL, displayed 100% mortality against Sitophilus zeamais at 72 h with a LC50 > 40.00 mg/mL air.

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