A SEX PHEROMONE MIXTURE FOR THE BERTHA ARMYWORM MOTH, MAMESTRA CONFIGURATA: (Z)-9-TETRADECEN-1-OL ACETATE AND (Z)-11-HEXADECEN-1-OL ACETATE

1977 ◽  
Vol 109 (10) ◽  
pp. 1335-1340 ◽  
Author(s):  
E.W. Underhill ◽  
W.F. Steck ◽  
M.D. Chisholm
Keyword(s):  
Mass Spectrometry ◽  
Sex Pheromone ◽  
Active Component ◽  
Field Tests ◽  
The Other ◽  
Mass Spectrometry Data ◽  
Gas Chromatography Mass Spectrometry ◽  
Mamestra Configurata ◽  
Pheromone Components ◽  
Bertha Armyworm

AbstractAn abdominal tip extract of female bertha armyworm moths, Mamestra configurata (Walker), was found to contain two sex pheromone components. One corresponded to (Z)-11-hexadecen-1-ol acetate, previously identified from this source, and the other to a tetradecen-1-ol acetate, identified by gas chromatography – mass spectrometry. Data obtained from the EAG profile of isomeric tetradecen-1-ol acetates indicated the active component to be (Z)-9-tetradecen-1-ol acetate. Neither of these two acetates was by itself attractive to males in field tests; however, mixtures were attractive, with the best attraction occurring with a C16:C14 acetate ratio of about 19:1.

MINOR SEX-PHEROMONE COMPONENTS OF MAMESTRA CONFIGURATA (LEPIDOPTERA: NOCTUIDAE) AND IMPROVED BLENDS FOR ATTRACTION OF MALE MOTHS

1984 ◽  
Vol 116 (1) ◽  
pp. 103-105 ◽  
Author(s):  
D. L. Struble ◽  
G. L. Ayre ◽  
J. R. Byers
Keyword(s):  
Sex Pheromone ◽  
Field Conditions ◽  
Mamestra Configurata ◽  
Sex Pheromone Components ◽  
Southern Alberta ◽  
Pheromone Components ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Noctuidae ◽  
Number Of Males ◽  
Bertha Armyworm

The sex pheromone of bertha armyworm, Mamestra configurata (Walker), was reported to be (Z)-11-hexadecenyl acetate (Z11-16:Ac) and an unidentified tetradecenyl acetate. Electroantennogram responses of male antennae to synthetic isomeric tetradecenyl acetates and attractancy tests under field conditions showed that the highest number of males were captured with a blend of Z9-14:Ac: Z11-16:Ac in a ratio of 1:19 (Underhill et al. 1977). This blend has been useful for monitoring the relative abundances of bertha armyworm; however, in 162 monitor traps in southern Alberta from 1979 to 1982, the catches consisted of 18.4% Agroperina cogitata (Sm)

scholarly journals iMatch: A retention index tool for analysis of gas chromatography–mass spectrometry data

2011 ◽  
Vol 1218 (37) ◽  
pp. 6522-6530 ◽  
Author(s):  
Jun Zhang ◽  
Aiqin Fang ◽  
Bing Wang ◽  
Seong Ho Kim ◽  
Bogdan Bogdanov ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Retention Index ◽  
Mass Spectrometry Data ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

Catalytic Pyrolysis of Waste Achyranthes Root Over Al-MCM-41

2021 ◽  
Vol 21 (7) ◽  
pp. 4081-4084
Author(s):  
Seul-Bee Lee ◽  
Young-Min Kim ◽  
Ji-Hui Park ◽  
Young-Kwon Park
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Aromatic Hydrocarbons ◽  
Catalytic Pyrolysis ◽  
The Other ◽  
Gas Chromatography Mass Spectrometry ◽  
Acidic Properties ◽  
Achyranthes Root ◽  
Formation Efficiency ◽  
Mcm 41

This study examined the thermal and catalytic pyrolysis of waste Achyranthes Root (AR) using pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS). The non-catalytic pyrolysis of waste AR produced various kinds of oxygenates, such as acetic acid, hydroxy propanone, furfural, phenol, cresol, guaiacols, syringols, and so on. By applying nanoporous Al-MCM-41 with acidic properties and mesopores to the pyrolysis of waste AR, the levels of furan and aromatic hydrocarbons production increased with a concomitant decrease in the other oxygenates. The formation efficiency of furans was improved further by increasing the amount of Al-MCM-41 applied to the catalytic pyrolysis of waste AR.

Extraction and Characterization of Gibberellins from Hordeum vulgare L. Seedlings

1974 ◽  
Vol 1 (2) ◽  
pp. 183 ◽  
Author(s):  
KF Faull ◽  
BG Coombe ◽  
LG Paleg
Keyword(s):  
Mass Spectrometry ◽  
Dry Weight ◽  
Paper Electrophoresis ◽  
The Other ◽  
Gas Chromatography Mass Spectrometry ◽  
Gas Liquid Chromatography ◽  
Fresh Weight ◽  
Hordeum Vulgare L ◽  
Layer Chromatography

Two gibberellins, one GA1-like, the other GA3-like, were identified in the extracts of roots and tops of 8-,11- and 15-day-old barley seedlings by paper chromatography, paper electrophoresis, thin-layer chromatography, gas-liquid chromatography and bioassay procedures, followed by combined gas chromatography-mass spectrometry. The amounts of gibberellins in the seedlings ranged from 7 to 11 ng per plant. The concentrations of gibberellins in the seedlings were 32-320 ng/g dry weight and 5-28 ng/g fresh weight; concentrations in the roots were higher than those in the shoots.

EFFECT OF LATITUDE ON THE CRITICAL PHOTOPERIOD FOR DIAPAUSE INDUCTION IN THE BERTHA ARMYWORM, MAMESTRA CONFIGURATA (LEPIDOPTERA: NOCTUIDAE)

1983 ◽  
Vol 115 (8) ◽  
pp. 1039-1042 ◽  
Author(s):  
B. M. Hegdekar
Keyword(s):  
Temperature Regime ◽  
Diapause Induction ◽  
The Other ◽  
Fluctuating Temperature ◽  
Mamestra Configurata ◽  
Ambient Temperatures ◽  
Critical Photoperiod ◽  
Lepidoptera Noctuidae ◽  
H 20 ◽  
Bertha Armyworm

AbstractThe critical photoperiod for diapause induction in pupae of Mamestra configurata Walker in Manitoba was 16 h 06 min at Glenlea (49°38′ N), 16 h 20 min at Grandview (51°10′ N), and 16 h 42 min at Birch River (52°24′ N). The differences in cirtical photoperiods observed at Glenlea and Grandview were not significant. At least two different photoperiods exist, one in the Glenlea and Grandview areas and the other in the Birch River area. In the laboratory, the critical photoperiod was 13.5 h when larvae were exposed to a daily fluctuating temperature regime of 12 h at 25 °C and 12 h at 10 °C. Longer critical photoperiods found for the field populations may be related to the relatively low ambient temperatures to which the larvae were exposed in field cages.

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