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).

scholarly journals Fumigant Compounds from the Essential Oil of ChineseBlumea balsamiferaLeaves against the Maize Weevil (Sitophilus zeamais)

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Sha Sha Chu ◽  
Shu Shan Du ◽  
Zhi Long Liu
Keyword(s):  
Essential Oil ◽  
Silica Gel ◽  
Chromatographic Separation ◽  
Medicinal Herb ◽  
Sitophilus Zeamais ◽  
Fumigant Toxicity ◽  
Caryophyllene Oxide ◽  
Maize Weevil ◽  
Chinese Medicinal Herb ◽  
Main Components

Essential oil of Chinese medicinal herb,Blumea balsamiferaleaves, was found to possess fumigant toxicity against the maize weevils,Sitophilus zeamais. The main components of the essential oil ofB. balsamiferawere 1,8-cineole (20.98%), borneol (11.99%),β-caryophyllene (10.38%), camphor (8.06%), 4-terpineol (6.49%),α-terpineol (5.91%), and caryophyllene oxide (5.35%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate five constituent compounds, namely, 1,8-cineole, borneol, camphor,α-terpineol, and 4-terpineol. 1,8-Cineole, 4-terpineol, andα-terpineol showed pronounced fumigant toxicity againstS. zeamaisadults (LC50= 2.96 mg/L, 4.79 mg/L, and 7.45 mg/L air, resp.) and were more toxic than camphor (LC50= 21.64 mg/L air) and borneol (LC50= 21.67 mg/L air). The crude essential oil also possessed strong fumigant toxicity againstS. zeamaisadults (LC50= 10.71 mg/L air).

scholarly journals Chemical Composition and Insecticidal Activity of the Essential Oil of Artemisia eriopoda against Maize Weevil, Sitophilus zeamais

2012 ◽  
Vol 7 (2) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Guo Hua Jiang ◽  
Quan Ru Liu ◽  
Sha Sha Chu ◽  
Zhi Long Liu
Keyword(s):  
Essential Oil ◽  
Screening Program ◽  
Sitophilus Zeamais ◽  
Wild Plants ◽  
Contact Toxicity ◽  
Fumigant Toxicity ◽  
Maize Weevil ◽  
Aerial Parts ◽  
Germacrene D ◽  
Main Components

In our screening program for new agrochemicals from local wild plants, Artemisia eriopoda was found to possess insecticidal activities against the maize weevil, Sitophilus zeamais. The essential oil of the aerial parts of A. eriopoda was obtained by hydrodistillation and investigated by GC and GC-MS. The main components of the essential oil are germacrene D (21.6%) and eucalyptol (14.2%). The essential oil possesses fumigant toxicity against S. zeamais adults with a LC50 value of 11.5 mg/L air and also shows contact toxicity against S. zeamais adults with a LD50 value of 24.8 μg/adult, respectively.

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 Contact Toxicity and Repellency of the Main Components From the Essential Oil ofClausena anisum-olensAgainst Two Stored Product Insects

2015 ◽  
Vol 15 (1) ◽  
pp. 87 ◽  
Author(s):  
Chun Xue You ◽  
Hai Yan Jiang ◽  
Wen Juan Zhang ◽  
Shan Shan Guo ◽  
Kai Yang ◽  
...  
Keyword(s):  
Essential Oil ◽  
Contact Toxicity ◽  
Stored Product Insects ◽  
Main Components

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.

Analysis of the Essential Oil of Illicium henryi Diels Root Bark and Its Insecticidal Activity against Liposcelis bostrychophila Badonnel

2015 ◽  
Vol 78 (4) ◽  
pp. 772-777 ◽  
Author(s):  
XIN CHAO LIU ◽  
ZHI LONG LIU
Keyword(s):  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Contact Toxicity ◽  
Fumigant Toxicity ◽  
Root Bark ◽  
Liposcelis Bostrychophila ◽  
Stored Grains ◽  
Natural Insecticides ◽  
Main Components ◽  
Total Oil

Water-distilled essential oil from Illicium henryi (Illiciaceae) root bark was analyzed by gas chromatography–mass spectrometry. Thirty-four compounds, accounting for 97.86% of the total oil, were identified. The main components of the essential oil of I. henryi root bark were safrole (46.12%), myristicin (20.39%), and 1,8-cineole (6.17%), followed by α-cadinol (3.784%) and linalool (3.22%). The essential oil had higher levels of phenylpropanoids (66.89%) than of monoterpenoids (14.83%) and sesquiternoids (16.14%). Three constituents were isolated from the oil based on bioactivity fractionation. The essential oil possessed fumigant toxicity against booklice (Liposcelis bostrychophila), with a 50% lethal concentration (LC50) of 380.39 μg/liter of air, while the two isolated constituents myristicin and safrole had LC50s of 121.95 and 322.54 μg/liter, respectively. Another constituent, 1,8-cineole, showed weaker toxicity, with an LC50 of 1,120.43 μg/liter. The essential oil also exhibited contact toxicity against L. bostrychophila, with an LC50 of 96.83 μg/cm2. Myristicin (LC50, 18.74 μg/cm2) and safrole (LC50, 69.28 μg/cm2) exhibited stronger acute toxicity than 1,8-cineole (LC50, 1,049.41 μg/cm2) against the booklice. The results indicated that the essential oil and its constituent compounds have potential for development into natural insecticides for control of psocids in stored grains.

scholarly journals Insecticidal Activity of Essential Oil of Carum Carvi Fruits from China and Its Main Components against Two Grain Storage Insects

Molecules ◽  
2010 ◽  
Vol 15 (12) ◽  
pp. 9391-9402 ◽  
Author(s):  
Rui Fang ◽  
Cai Hong Jiang ◽  
Xiu Yi Wang ◽  
Hai Ming Zhang ◽  
Zhi Long Liu ◽  
...  
Keyword(s):  
Essential Oil ◽  
Insecticidal Activity ◽  
Grain Storage ◽  
Carum Carvi ◽  
Storage Insects ◽  
Main Components

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
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